WO2015037675A1

WO2015037675A1 - Benzothienopyrimidine compound, method for producing same and organic electroluminescent element containing same

Info

Publication number: WO2015037675A1
Application number: PCT/JP2014/074122
Authority: WO
Inventors: 内田　直樹; 陽子本間; 尚志飯田; 華奈藤田; 恵理子太田; 裕太森中
Original assignee: 東ソー株式会社
Priority date: 2013-09-11
Filing date: 2014-09-11
Publication date: 2015-03-19
Also published as: JP6822508B2; JP6507534B2; JP2015134745A; TW201527302A; JP2019131575A

Abstract

Provided is a novel electron transport material which has excellent heat resistance and high luminous efficiency, and which enables an element to be driven at a low voltage by excellent electron injection properties and electron transport characteristics thereof, while enabling the element to be driven for a long period of time. A benzothienopyrimidine compound represented by general formula (1) is used. (In the formula, each of R¹-R⁴ independently represents an aromatic group which may be substituted by a specific substituent and has 4-66 carbon atoms, a hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3-10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3-10 carbon atoms, a methylthio group, an ethylthio group, a sulfide group having 3-10 carbon atoms or a diarylamino group having 10-36 carbon atoms; and each of Ar¹ and Ar² independently represents an aromatic group which may be substituted by a specific substituent and has 4-66 carbon atoms.)

Description

Benzothienopyrimidine compound, method for producing the same, and organic electroluminescent device containing the same

The present invention relates to a benzothienopyrimidine compound useful as a component of an organic electroluminescent device, a method for producing the same, and an organic electroluminescent device containing the same.

An organic electroluminescent element has a basic structure in which a light-emitting layer containing a light-emitting material is sandwiched between a hole transport layer and an electron transport layer, and an anode and a cathode are attached to the outside of the light-emitting layer. This element utilizes light emission (fluorescence or phosphorescence) accompanying exciton deactivation caused by recombination of holes and electrons, and is applied to displays and the like. The hole transport layer is divided into a hole transport layer and a hole injection layer, the light emitting layer is divided into an electron blocking layer, a light emitting layer and a hole blocking layer, and the electron transport layer is divided into an electron transport layer and an electron injection layer. May be configured.

In recent years, many organic electroluminescent devices using triazine and pyrimidine compounds in the light emitting layer and the electron transporting layer have been reported, but they completely satisfy the market requirements in terms of luminous efficiency characteristics, driving voltage characteristics, and long life characteristics. However, there is a need for better materials.

As electron transport materials, etc., dibenzothiophene compounds (for example, Patent Document 1) and nitrogen-substituted dibenzothiophene compounds have been disclosed (for example, see Patent Document 2-3), and proposals for improving the lifetime of the device using these compounds have been made. However, improvement is desired in that the device has a higher driving voltage and a longer life is required.

Moreover, the use of nitrogen-substituted dibenzothiophene compounds has been proposed for many uses, not limited to organic electroluminescent devices, but there have been few reports on the production methods of these compounds, and a simple synthesis method has been demanded. Yes.

International Publication No. 2007/069569 Pamphlet JP 2011-84531 A International Publication No. 2013/038650 Pamphlet

Organic electroluminescence devices have begun to be used in various display devices, but further improvements in device performance such as longer life, higher luminous efficiency, and lower drive voltage are required. More specifically, there is a demand for the development of a carrier transport material that achieves a long life, high luminous efficiency, low driving voltage, and suppression of voltage rise during driving.

Among the carrier transport materials, for the electron injection material and the electron transport material, there are new materials that drive the device at a low voltage due to excellent electron injection properties and electron transport properties, and have high luminous efficiency and drive the device for a long time. It is desired.
Moreover, the organic electroluminescent element material is generally heated to a high temperature in a vacuum at the time of sublimation purification and vapor deposition for producing the organic electroluminescent element, and a material having higher heat resistance is required.

Also, simple synthesis of benzothienopyrimidine compounds, which are useful compounds, is desired.

As a result of intensive studies to solve the above-mentioned problems, the present inventors have found that the benzothienopyrimidine compound represented by the general formula (1) of the present invention has higher electron durability and higher resistance than conventionally known compounds. It has been found that the hole durability is remarkably improved. From such knowledge, when the benzothienopyrimidine compound is used as an electron transport layer in an organic electroluminescent device, the organic electroluminescent device has a longer life than when a known or general-purpose electron transport material is used. The inventors have found that the voltage rise during driving is suppressed, and have completed the present invention.
In addition, the present inventors have found that by replacing the 2-position and 4-position of benzothienopyrimidine with an aromatic group, the heat resistance of the compound can be improved and the thermal deterioration of the material can be suppressed, and the present invention is completed. It came to.

That is, the present invention relates to a benzothienopyrimidine compound represented by the following general formula (1) (hereinafter also referred to as “compound (1)”), a production method thereof, and an organic electroluminescent device containing the same. .

(Wherein R ¹ to R ⁴ each independently represents an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group) A substituent, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms A hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, methylthio, A group, an ethylthio group, a sulfide group having 3 to 10 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms.
Ar ¹ and Ar ² are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group) A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Is also possible. )
Moreover, this invention can provide a very useful manufacturing intermediate in order to manufacture the said compound (1) industrially.

The benzothienopyrimidine compound of the present invention is excellent in electron durability and hole durability. When the benzothienopyrimidine compound of the present invention is used as an electron transport layer in an organic electroluminescent device, the organic electroluminescent device has a long life, and An increase in voltage during driving is suppressed. Moreover, it is excellent in heat resistance than a conventionally well-known benzothienopyrimidine compound.

FIG. 1 is a cross-sectional view of an organic electroluminescent element produced in Evaluation Example 1 or the like. FIG. 2 is a cross-sectional view of an organic electroluminescent element produced in Evaluation Example 10 or the like.

Hereinafter, the present invention will be described in detail.

The present invention relates to the above compound (1), a production method thereof, and an organic electroluminescence device containing the compound.

The present invention also relates to a production intermediate for producing the above compound (1).

The substituents in the compound (1) of the present application are defined as follows.

The aromatic group having 4 to 66 carbon atoms defines only a ring skeleton that may be condensed or linked, and the carbon number of the aromatic group does not include the carbon number of the substituent. In the aromatic group having 4 to 66 carbon atoms, the aromatic group is not particularly limited as long as it is an aromatic hydrocarbon group, a heteroaromatic group, or a group in which these are condensed or linked.

That is, the aromatic group having 4 to 66 carbon atoms represents an aromatic group having 4 to 66 carbon atoms in the ring skeleton and may be condensed or linked. Note that the aromatic group having 4 to 66 carbon atoms does not include the carbon number of a substituent that may be separately provided. The aromatic group having 4 to 66 carbon atoms is not particularly limited as long as it is an aromatic hydrocarbon group, a heteroaromatic group, or a group in which these are condensed or linked.

The aromatic group having 4 to 66 carbon atoms is not particularly limited, and examples thereof include a phenyl group, a biphenylyl group, a terphenyl group, a naphthyl group, a naphthylphenyl group, a phenylnaphthyl group, a naphthylbiphenyl group, and a biphenylnaphthyl group. Group, diphenylnaphthyl group, phenylnaphthylphenyl group, anthryl group, anthrylphenyl group, phenylanthryl group, phenylanthrylphenyl group, phenanthrylphenyl group, phenanthrylphenyl group, phenylphenanthryl group, pyrenyl group, phenylpyrene group Nyl group, pyrenylphenyl group, fluorenyl group, fluorenylphenyl group, phenylfluorenyl group, fluoranthenyl group, phenylfluoranthenyl group, fluoranthenylphenyl group, perylenyl group, phenylperylenyl group, perylenylphenol Group, triphenylenyl group, phenyltriphenylenyl group, triphenylenylphenyl group, tetracenyl group, phenyltoteracenyl group, tetracenylphenyl group, chrysenyl group, phenylchrysenyl group, chrysenylphenyl group (above, Aromatic hydrocarbon group which may be linked or condensed), pyridyl group, phenylpyridyl group, pyridylphenyl group, bipyridyl group, biphenylpyridyl group, pyridylbiphenyl group, diphenylpyridyl group, diphenylpyridylphenyl group, pyrimidyl group, phenyl Pyrimidyl group, pyrimidylphenyl group, pyrazyl group, phenylpyrazyl group, pyrazylphenyl group, triazinyl group, phenyltriazyl group, triazylphenyl group, quinolyl group, phenylquinolyl group, quinolylphenyl group, Pyridylquinolyl group, iso Noryl group, phenylisoquinolyl group, isoquinolylphenyl group, pyridylisoquinolyl group, quinoxalinyl group, phenylquinoxalinyl group, quinoxalinylphenyl group, acridinyl group, phenylacridinyl group, acridinyl Phenyl group, phenanthridinyl group, phenylphenanthridinyl group, phenanthridinylphenyl group, phenanthrolinyl group, phenylphenanthrolinyl group, phenanthrolinylphenyl group, pyrrolyl group, phenylpyrrolyl group , Pyrrolylphenyl group, pyridylpyrrolyl group, furanyl group, phenylfuranyl group, furanylphenyl group, pyridylfuranyl group, thienyl group, phenylthienyl group, thienylphenyl group, imidazolyl group, phenylimidazolyl group, imidazolylphenyl group , Oxazolyl group, phenylo Xazolyl group, oxazolylphenyl group, isoxazolyl group, phenylisoxazolyl group, isoxazolylphenyl group, oxadiazolyl group, phenyloxadiazolyl group, oxadiazolylphenyl group, thiazolyl group, phenylthiazolyl group, Thiazolylphenyl group, indolyl group, phenylindolyl group, indolylphenyl group, benzofuranyl group, phenylbenzofuranyl group, benzofuranylphenyl group, benzothiazolyl group, phenylbenzothiazolyl group, benzothiazolylphenyl group , Benzimidazolyl group, phenylbenzoimidazolyl group, benzoimidazolylphenyl group, benzoxazolyl group, phenylbenzoxazolyl group, benzoxazolylphenyl group, benzothiazolyl group, phenylbenzothiazolyl group, benzothiol Zolylphenyl group, dibenzofuranyl group, phenyldibenzofuranyl group, dibenzofuranylphenyl group, dibenzothienyl group, phenyldibenzothienyl group, dibenzothienylphenyl group, carbazolyl group, phenylcarbazolyl group, carbazolylphenyl group, pyridyl Carbazolyl group, Pyridylphenylcarbazolyl group, Carborinyl group, Phenylcarborinyl group, Carborinylphenyl group, Indolocarbazolyl group, Phenylindolocarbazolyl group, Phenylindolocarbazolylphenyl group , An indolocarbazolylphenyl group, an indolobenzothienyl group, a phenylindolobenzothienyl group, or an indolobenzothienylphenyl group (the heteroaromatic group which may be linked or condensed).

The alkyl group having 3 to 10 carbon atoms is not particularly limited. For example, n-propyl group, isopropyl group, n-butyl group, sec-butyl group, tert-butyl group, n-pentyl group, sec -Pentyl group, cyclopentyl group, n-hexyl group, cyclohexyl group, n-heptyl group, n-octyl group, n-nonyl group, n-decyl group, benzyl group, or phenethyl group.

The alkoxy group having 3 to 10 carbon atoms is not particularly limited, and examples thereof include an n-propoxy group, an isopropoxy group, an n-butoxy group, a sec-butoxy group, a tert-butoxy group, and an n-pentyloxy group. Sec-pentyloxy group, cyclopentyloxy group, n-hexyloxy group, cyclohexyloxy group, n-heptyloxy group, n-octyloxy group, n-nonyloxy group, n-decyloxy group, benzyloxy group, or phenethyloxy Groups and the like.

The halogenated alkyl group having 1 to 3 carbon atoms is not particularly limited, and examples thereof include chloromethyl group, dichloromethyl group, trichloromethyl group, fluoromethyl group, difluoromethyl group, trifluoromethyl group, chloroethyl group, dichloromethane. Examples include an ethyl group, trichloroethyl group, pentachloroethyl group, fluoroethyl group, difluoroethyl group, trifluoroethyl group, pentafluoroethyl group, chloropropyl group, or fluoropropyl group.

The halogenated alkoxy group having 1 to 3 carbon atoms is not particularly limited, and examples thereof include a chloromethyloxy group, a dichloromethyloxy group, a trichloromethyloxy group, a fluoromethyloxy group, a difluoromethyloxy group, Fluoromethyloxy group, chloroethyloxy group, dichloroethyloxy group, trichloroethyloxy group, pentachloroethyloxy group, fluoroethyloxy group, difluoroethyloxy group, trifluoroethyloxy group, pentafluoroethyloxy group, chloro A propyloxy group, a fluoropropyloxy group, etc. are mentioned.

The diarylamino group having 10 to 36 carbon atoms represents an amino group in which two kinds of aryl groups which may be different from each other are bonded, and means a group having 10 to 36 carbon atoms as a whole.

The diarylamino group having 10 to 36 carbon atoms is not particularly limited. For example, N, N-diphenylamino group, N-tolyl-N-phenylamino group, N, N-ditolylamino group, N, N -Dibiphenylamino group, N, N-di (terphenyl) amino group, N-phenyl-N-naphthylamino group, N-phenyl-N-biphenylamino group, N-phenyl-N-terphenylamino group, or And N-biphenyl-N-terphenylamino group. Among these, N, N-diphenylamino group, N-tolyl-N-phenylamino group, N, N-ditolylamino group, or N, N-dibiphenyl is preferable in that the compound (1) has excellent electron transport material characteristics. An amino group is preferred.

The sulfide group having 3 to 10 carbon atoms is not particularly limited. For example, n-propyl sulfide group, isopropyl sulfide group, n-butyl sulfide group, sec-butyl sulfide group, tert-butyl sulfide group, n -Pentyl sulfide group, sec-pentyl sulfide group, cyclopentyl sulfide group, n-hexyl sulfide group, cyclohexyl sulfide group, n-heptyl sulfide group, n-octyl sulfide group, n-nonyl sulfide group, n-decyl sulfide group, benzyl Examples thereof include a sulfide group or a phenethyl sulfide group.

In R ¹ to R ⁴ , Ar ¹ , and Ar ² , the aromatic group having 4 to 66 carbon atoms is each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, or a methoxy group. , An ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, and a diarylamino group having 10 to 36 carbon atoms. And may have a plurality of substituents. When there are a plurality of substituents, each substituent may be the same or different.

The substituent that the aromatic group having 4 to 66 carbon atoms in R ¹ to R ⁴ , Ar ¹ , and Ar ² may have is a methyl group or a carbon number in terms of excellent electron transport material characteristics. 10-36 diarylamino groups are preferred.

R ¹ to R ⁴ are each independently an aromatic group having 4 to 30 carbon atoms in terms of excellent electron transport material characteristics (these substituents are each independently a fluorine atom, a methyl group, an ethyl group, A substituent of an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, or a halogenated alkoxy group having 1 to 3 carbon atoms A hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, or an alkyl group having 3 to 10 carbon atoms, preferably a phenyl group, a biphenyl group, a phenanthryl group, Pyrenyl, fluoranthenyl, pyridyl, pyrimidyl, quinolyl, isoquinolyl, pyridylphenyl, pyrimidylphenyl, carbazolyl, pyridylcarbazolyl, Is a dipyridylcarbazolyl group (these substituents may each independently have a fluorine atom, a methyl group, an ethyl group, a methoxy group, or an ethoxy group), a hydrogen atom, a heavy atom More preferably a hydrogen atom, a fluorine atom, a methyl group, an ethyl group, or an alkyl group having 3 to 10 carbon atoms, each independently a phenyl group, a biphenylyl group, an anthryl group, a phenanthryl group, a pyrimidylphenyl group Or a pyridylphenyl group (these substituents may have a methyl group), a hydrogen atom, a deuterium atom, a phenyl group, or a methyl group, more preferably a hydrogen atom, a phenyl group, or More preferably, it is a deuterium atom.

The aromatic group having 4 to 30 carbon atoms is not particularly limited, but among the substituents exemplified in the aromatic group having 4 to 66 carbon atoms, the total number of carbon atoms is 30 or less. Things can be illustrated.

That is, the aromatic group having 4 to 30 carbon atoms defines only a ring skeleton that may be condensed or linked, and the carbon number of the aromatic group does not include the carbon number of the substituent. The aromatic group in the aromatic group having 4 to 30 carbon atoms is not particularly limited as long as it is an aromatic hydrocarbon group, a heteroaromatic group, or a condensed or linked group thereof.

The aromatic group having 4 to 30 carbon atoms is not particularly limited, and examples thereof include a phenyl group, a biphenylyl group, a terphenyl group, a naphthyl group, a naphthylphenyl group, a phenylnaphthyl group, a naphthylbiphenyl group, and a biphenylnaphthyl group. Group, diphenylnaphthyl group, phenylnaphthylphenyl group, anthryl group, anthrylphenyl group, phenylanthryl group, phenylanthrylphenyl group, phenanthrylphenyl group, phenanthrylphenyl group, phenylphenanthryl group, pyrenyl group, phenylpyrene group Nyl group, pyrenylphenyl group, fluorenyl group, fluorenylphenyl group, phenylfluorenyl group, fluoranthenyl group, phenylfluoranthenyl group, fluoranthenylphenyl group, perylenyl group, phenylperylenyl group, perylenylphenol Group, triphenylenyl group, phenyltriphenylenyl group, triphenylenylphenyl group, tetracenyl group, phenyltoteracenyl group, tetracenylphenyl group, chrysenyl group, phenylchrysenyl group, chrysenylphenyl group (above, Aromatic hydrocarbon group which may be linked or condensed), pyridyl group, phenylpyridyl group, pyridylphenyl group, bipyridyl group, biphenylpyridyl group, pyridylbiphenyl group, diphenylpyridyl group, diphenylpyridylphenyl group, pyrimidyl group, phenyl Pyrimidyl group, pyrimidylphenyl group, pyrazyl group, phenylpyrazyl group, pyrazylphenyl group, triazinyl group, phenyltriazyl group, triazylphenyl group, quinolyl group, phenylquinolyl group, quinolylphenyl group, Pyridylquinolyl group, iso Noryl group, phenylisoquinolyl group, isoquinolylphenyl group, pyridylisoquinolyl group, quinoxalinyl group, phenylquinoxalinyl group, quinoxalinylphenyl group, acridinyl group, phenylacridinyl group, acridinyl Phenyl group, phenanthridinyl group, phenylphenanthridinyl group, phenanthridinylphenyl group, phenanthrolinyl group, phenylphenanthrolinyl group, phenanthrolinylphenyl group, pyrrolyl group, phenylpyrrolyl group , Pyrrolylphenyl group, pyridylpyrrolyl group, furanyl group, phenylfuranyl group, furanylphenyl group, pyridylfuranyl group, thienyl group, phenylthienyl group, thienylphenyl group, imidazolyl group, phenylimidazolyl group, imidazolylphenyl group , Oxazolyl group, phenylo Xazolyl group, oxazolylphenyl group, isoxazolyl group, phenylisoxazolyl group, isoxazolylphenyl group, oxadiazolyl group, phenyloxadiazolyl group, oxadiazolylphenyl group, thiazolyl group, phenylthiazolyl group, Thiazolylphenyl group, indolyl group, phenylindolyl group, indolylphenyl group, benzofuranyl group, phenylbenzofuranyl group, benzofuranylphenyl group, benzothiazolyl group, phenylbenzothiazolyl group, benzothiazolylphenyl group , Benzimidazolyl group, phenylbenzoimidazolyl group, benzoimidazolylphenyl group, benzoxazolyl group, phenylbenzoxazolyl group, benzoxazolylphenyl group, benzothiazolyl group, phenylbenzothiazolyl group, benzothiol Zolylphenyl group, dibenzofuranyl group, phenyldibenzofuranyl group, dibenzofuranylphenyl group, dibenzothienyl group, phenyldibenzothienyl group, dibenzothienylphenyl group, carbazolyl group, phenylcarbazolyl group, carbazolylphenyl group, pyridyl Carbazolyl group, pyridylphenylcarbazolyl group, dipyridylcarbazolyl group, carbolinyl group, phenylcarbolinyl group, carbolinylphenyl group, indolocarbazolyl group, phenylindolocarbazolyl group, indolo Carbazolylphenyl group, phenylindolocarbazolylphenyl group, indolobenzothienyl group, phenylindolobenzothienyl group, or indolobenzothienylphenyl group (above, heteroaromatic group which may be linked or condensed) ) Etc. It is below.

As for Ar ¹ and Ar ² , any one of them is a condensed ring aromatic group having 7 to 18 carbon atoms or any one of the following general formulas (2) to (9), because of excellent electron transport material properties. The substituents represented by these groups are each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, Preferably a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms as a substituent. Either one is a condensed aromatic group having 7 to 18 carbon atoms or a substituent represented by any one of the following general formulas (2) to (9) (these substituents are each independently Methyl group or dia having 10 to 36 carbon atoms Ruamino may be substituted with a group.) Is more preferable.

That is, with respect to Ar ¹ and Ar ² , one of them is a condensed aromatic group having 7 to 18 carbon atoms (fluorine atom, methyl group, ethyl group, 3 to 10 carbon atoms, because of excellent electron transport material properties. Alkyl group, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, halogenated alkyl group having 1 to 3 carbon atoms, halogenated alkoxy group having 1 to 3 carbon atoms, or diarylamino having 10 to 36 carbon atoms Or a substituent represented by any one of the following general formulas (2) to (9), preferably one of which has 7 to 7 carbon atoms. 18 substituted ring aromatic groups (which may be substituted with a methyl group or a diarylamino group having 10 to 36 carbon atoms) or any one of the following general formulas (2) to (9) More preferred to be a group .

Further, Ar ¹ and Ar ² are each independently a phenyl group, a condensed aromatic group having 7 to 18 carbon atoms, and the following general formulas (2) to (2) to A substituent represented by any one of the general formula (9) (these substituents are each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, It may have an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms as a substituent. It is preferably a substituent selected from the group consisting of: Ar ¹ and Ar ² are each independently a phenyl group, a condensed aromatic group having 7 to 18 carbon atoms, and the following general formula: Any of (2) to general formula (9) (These substituents may be each independently substituted with a methyl group or a diarylamino group having 10 to 36 carbon atoms). It is more preferable.

That is, with respect to Ar ¹ and Ar ² , both are independently a phenyl group, a condensed ring aromatic group having 7 to 18 carbon atoms (a fluorine atom, a methyl group, an ethyl group) because of excellent electron transport material properties. An alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or the number of carbon atoms 10 to 36 diarylamino groups may be substituted.) Or a substituent represented by any one of the following general formulas (2) to (9), Ar ¹ and Both of Ar ² are each independently a condensed aromatic group having 7 to 18 carbon atoms (which may be substituted with a methyl group or a diarylamino group having 10 to 36 carbon atoms) or the following general formula (2 ) To general formula (9) A substituent represented by any of these is more preferable.

The substituents represented by the general formulas (2) to (9) are shown below.

(In the general formulas (2) to (9), each Ar ³ is independently an aromatic group having 4 to 30 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, 3 to 10 carbon atoms) Alkyl group, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, halogenated alkyl group having 1 to 3 carbon atoms, halogenated alkoxy group having 1 to 3 carbon atoms, or diarylamino having 10 to 36 carbon atoms And a methyl group, an ethyl group, a methoxy group, an ethoxy group, a diarylamino group having 10 to 36 carbon atoms, or a hydrogen atom.)
Note that the condensed aromatic group having 7 to 18 carbon atoms defines only the condensed ring skeleton, and the number of carbon atoms of the substituent is not included in the number of carbon atoms of the condensed aromatic group. The condensed ring aromatic group having 7 to 18 carbon atoms is composed of a condensed ring aromatic hydrocarbon group having 7 to 18 carbon atoms and a condensed ring heteroaromatic group having 7 to 18 carbon atoms, and is not particularly limited. For example, naphthyl group, fluorenyl group, anthryl group, phenanthryl group, pyrenyl group, chrysenyl group, triphenylenyl group, perylenyl group, quinolyl group, isoquinolyl group, acridinyl group, phenanthridinyl group, phenanthryl group, indolyl group, indolizinyl group , Benzimidazolyl group, azaindolidinyl group, benzothiazolyl group, benzofuranyl group, benzothienyl group, carbazolyl group, carbolinyl group, diazacarbazolyl group, dibenzofuranyl group, dibenzothienyl group, indolocarbazolyl group, or An indolobenzothienyl group is mentioned.

In addition, the aromatic group having 4 to 30 carbon atoms in the general formulas (2) to (9) has the same definition as the aromatic group having 4 to 30 carbon atoms represented by R ¹ to R ⁴ and is particularly limited. However, the same substituents as those exemplified for R ¹ to R ⁴ can be exemplified.

Further, the diarylamino group having 10 to 36 carbon atoms in the general formulas (2) to (9) is not particularly limited, but is exemplified in the diarylamino group having 10 to 36 carbon atoms in the general formula (1). The same thing as what was done can be illustrated.

The diarylamino group having 10 to 36 carbon atoms is not particularly limited. For example, N, N-diphenylamino group, N-tolyl-N-phenylamino group, N, N-ditolylamino group, N, N -Dibiphenylamino group, N, N-di (terphenyl) amino group, N-phenyl-N-naphthylamino group, N-phenyl-N-biphenylamino group, N-phenyl-N-terphenylamino group, or And N-biphenyl-N-terphenylamino group.

Preferred in Ar ¹ and Ar ² are a condensed aromatic group of 7 to 18 or a substituent represented by any one of the general formulas (2) to (9), each independently a fluorine atom, Methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, halogenated alkyl group having 1 to 3 carbon atoms, halogenated alkoxy having 1 to 3 carbon atoms And may have a substituent selected from the group consisting of a group and a diarylamino group having 10 to 36 carbon atoms, and the substituent may be plural. When there are a plurality of substituents, each substituent may be the same or different.

Of the substituents represented by the general formulas (2) to (9), the general formula (2), (3), (5), (7), or (9) The substituent represented by these is preferable.

In the substituents represented by the general formulas (2) to (9), Ar ³ is each independently an aromatic group having 4 to 30 carbon atoms (each independently) in terms of excellent electron transport properties. , A fluorine atom, a methyl group, a methoxy group, or a diarylamino group having 10 to 36 carbon atoms as a substituent), a methyl group, an ethyl group, a diarylamino group having 10 to 36 carbon atoms, or hydrogen Preferably, they are each independently an aromatic group having 4 to 24 carbon atoms (each independently having a fluorine atom, a methyl group, a methoxy group, or a diarylamino group having 10 to 36 carbon atoms as a substituent). And a methyl group, an ethyl group, a diarylamino group having 10 to 36 carbon atoms, or a hydrogen atom is more preferable.
Among these, Ar ³ is each independently a phenyl group, pyridylphenyl group, phenylpyridyl group, diphenylpyridyl group, diphenylpyridylphenyl group, pyrimidylphenyl group, quinolylphenyl group, isoquinolylphenyl group, Naphtyl, biphenylyl, fluorenyl, benzofluorenyl, dibenzofluorenyl, terphenyl, anthryl, phenanthryl, pyrenyl, chrysenyl, triphenylenyl, pyridyl, bipyridyl, terpyridyl, quinolyl Group, isoquinolyl group, indolyl group, imidazolyl group, benzimidazolyl group, thiazole group, carbazolyl group, phenylcarbazolyl group, pyridylcarbazolyl group, dipyridylcarbazolyl group, carbolinyl group, phenylcarbolinyl group, pyridyl group A carbolinyl group or a dibenzothienyl group (these substituents may each independently have a fluorine atom, a methyl group, a methoxy group, or a diarylamino group having 10 to 36 carbon atoms as a substituent). More preferably a methyl group, an ethyl group, a diarylamino group having 10 to 36 carbon atoms, or a hydrogen atom.
Furthermore, among these, Ar ³ is each independently a phenyl group, pyridylphenyl group, phenylpyridyl group, diphenylpyridyl group, diphenylpyridylphenyl group, pyrimidylphenyl group, quinolylphenyl group, isoquinolylphenyl. Group, naphthyl group, biphenylyl group, fluorenyl group, benzofluorenyl group, terphenyl group, anthryl group, phenanthryl group, pyrenyl group, chrysenyl group, triphenylenyl group, pyridyl group, bipyridyl group, terpyridyl group, quinolyl group, isoquinolyl group , Indolyl group, benzimidazolyl group, carbazolyl group, phenylcarbazolyl group, pyridylcarbazolyl group, dipyridylcarbazolyl group, carbolinyl group, phenylcarbolinyl group, pyridylcarbolinyl group, or dibenzothienyl group (this These substituents may each independently have a fluorine atom, a methyl group, a methoxy group, or a diarylamino group having 10 to 36 carbon atoms as a substituent), a methyl group, an ethyl group, a carbon It is more preferably a diarylamino group of several tens to 36 or a hydrogen atom.
Furthermore, among these, Ar ³ is each independently a phenyl group, pyridylphenyl group, phenylpyridyl group, diphenylpyridyl group, diphenylpyridylphenyl group, pyrimidylphenyl group, quinolylphenyl group, isoquinolylphenyl. Group, naphthyl group, biphenylyl group, fluorenyl group, benzofluorenyl group, terphenyl group, anthryl group, phenanthryl group, pyrenyl group, chrysenyl group, triphenylenyl group, pyridyl group, bipyridyl group, terpyridyl group, quinolyl group, isoquinolyl group , Indolyl group, benzimidazolyl group, carbazolyl group, phenylcarbazolyl group, pyridylcarbazolyl group, dipyridylcarbazolyl group, carbolinyl group, phenylcarbolinyl group, pyridylcarbolinyl group, or dibenzothienyl group (this These substituents may each independently have a methyl group as a substituent.), Or more preferably a hydrogen atom.

The aromatic group having 4 to 24 carbon atoms is an aromatic group having a ring skeleton having 4 to 24 carbon atoms and may be condensed or linked. Note that the aromatic group having 4 to 24 carbon atoms does not include the carbon number of a substituent that may be separately provided. The aromatic group in the aromatic group having 4 to 24 carbon atoms is not particularly limited as long as it is an aromatic hydrocarbon group, a heteroaromatic group, or a condensed or linked group thereof.

The aromatic group having 4 to 24 carbon atoms is not particularly limited, but among the substituents exemplified in the aromatic group having 4 to 66 carbon atoms, those having a total number of carbon atoms of 24 or less. For example, phenyl group, pyridylphenyl group, phenylpyridyl group, diphenylpyridyl group, diphenylpyridylphenyl group, pyrimidylphenyl group, pyrimidylphenyl group, quinolylphenyl group, isoquinolylphenyl group , Naphthyl group, biphenylyl group, fluorenyl group, benzofluorenyl group, dibenzofluorenyl group, terphenyl group, anthryl group, phenanthryl group, pyrenyl group, chrysenyl group, triphenylenyl group, pyridyl group, bipyridyl group, terpyridyl group, Quinolyl group, isoquinolyl group, indolyl group, imidazolyl group, ben Imidazolyl group, a thiazole group, carbazolyl group, phenylcarbazolyl group, pyridyl carbazolyl group, dipyridyl carbazolyl group, carbolinyl group, phenyl carbonium Li group, pyridylcarbonitrile Li group, or dibenzothienyl group.

Specific examples of the benzothienopyrimidine compound represented by the general formula (1) include the following compounds 1 to 140, but the present invention is not limited thereto.

Next, the manufacturing method of the present invention will be described.

The benzothienopyrimidine compound (1) of the present invention is prepared by the following reaction formula (1), reaction formula (2), or reaction formula in the presence of a base, a metal catalyst, or a base and a metal catalyst. It can be produced by the method shown in (12).

Further, hereinafter, the compound represented by the general formula (10) is generally referred to as the compound (10). In addition, it is synonymous also about other compounds including a compound (11).

(In the general formula,
R ¹ to R ⁴ are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group) A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Or a hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a methylthio group, or an ethylthio group. Represents a sulfide group having 3 to 10 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms.
Ar ¹ and Ar ² are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group) A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Is also possible.
Ar ¹¹ , Ar ¹² and Ar ¹³ are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group). , An ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms as a substituent. It may be.)
X ¹ to X ⁴ each independently represents an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group or an ethoxy group). A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Or a hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a methylthio group, or an ethylthio group. Represents a sulfide group having 3 to 10 carbon atoms, a diarylamino group having 10 to 36 carbon atoms, or a leaving group.
X ⁵ to X ⁶ and Y each independently represent a hydrogen atom, deuterium atom, fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, or 3 to 10 carbon atoms. An alkoxy group, a methylthio group, an ethylthio group, a sulfide group having 3 to 10 carbon atoms, a diarylamino group having 10 to 36 carbon atoms, or a leaving group.
X ⁷ represents a leaving group.
Z represents a chlorine atom, a bromine atom, a triflate or an iodine atom.
In general formula (10), at least one of X ¹ to X ⁶ is a leaving group. )
Moreover, the compound (10) used by Reaction formula (1) can be manufactured by the method shown by following Reaction formula (3) or Reaction formula (13) in presence of a base or an acid. Similarly, in the presence of a base or an acid, the compound (11) can be obtained by the following reaction formula (4) and the method represented by the reaction formula (5), or the reaction formula (14) and the reaction formula (15). It can be produced by the method shown.

(In the general formula,
Ar ¹¹ and Ar ¹² are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group) A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Is also possible.
R ⁵ represents a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, or an aromatic group having 5 to 10 carbon atoms.
X ¹ to X ⁴ are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, It may have an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms as a substituent. Hydrogen atom, deuterium atom, fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, methylthio group, ethylthio group, It represents a sulfide group having 3 to 10 carbon atoms, a diarylamino group having 10 to 36 carbon atoms, or a leaving group.
X ⁵ to X ⁶ each independently represent a hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, or an alkoxy having 3 to 10 carbon atoms. Represents a group, a methylthio group, an ethylthio group, a sulfide group having 3 to 10 carbon atoms, a diarylamino group having 10 to 36 carbon atoms, or a leaving group.
X ⁷ represents a leaving group.
Z represents a chlorine atom, a bromine atom, a triflate or an iodine atom.
In general formula (10) and general formulas (15), (16) and (17) corresponding thereto, at least one of X ¹ to X ⁶ is a leaving group. )
R ⁵ represents a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, or an aromatic group having 5 to 10 carbon atoms. The alkyl group having 3 to 10 carbon atoms has the same definition as above. The aromatic group having 5 to 10 carbon atoms is not particularly limited, and examples thereof include a pyridyl group, a phenyl group, a tolyl group, a tert-butylphenyl group, a naphthyl group, a quinolyl group, and an isoquinolyl group.

Z represents a chlorine atom, a bromine atom, a triflate or an iodine atom. Among these, a chlorine atom or a bromine atom is preferable in terms of good reaction yield and easy availability.

The leaving group represented by X ¹ to X ⁷ and Y is not particularly limited. For example, a hydrogen atom, a chlorine atom, a bromine atom, a triflate, an iodine atom, a metal-containing group (for example, Li, Na MgCl, MgBr, MgI, CuCl, CuBr, CuI, AlCl ₂ , AlBr ₂ , Al (Me) ₂ , Al (Et) ₂ , Al ( ⁱ Bu) ₂ , Sn (Me) ₃ , Sn (Bu) ₃ , SnF ₃ , ZnR ²⁴ (R ²⁴ represents a halogen atom. Examples of ZnR ²⁴ include ZnCl, ZnBr, ZnI, etc.), Si (R ²¹ ) ₃ (for example, SiMe ₃ , SiPh ₃ , SiMePh ₂ , SiCl _{_{_{3, SiF 3, Si (OMe}}} ) 3, Si (OEt) 3, Si (OMe) 2 OH , _{^{etc.), BF 3 K, B (}} OR 22) 2 ( e.g., B _{_{^{_{OH) 2, B (OMe)}}}} 2, B (O i Pr) 2, B (OBu) 2, B (OPh) 2 or the _like), ^{B (OR} 23) _3, etc.) and the like.

The metal-containing group represented by X ¹ to X ⁷ and Y may be coordinated with a ligand such as ethers or amines. There is no limit as long as it does not.

Moreover, as B (OR < ²² >) ₂ , what is shown by following (I) to (VII) can be illustrated, and what is shown by (II) is a point with a sufficient yield.

Examples of B (OR ²³ ) ₃ include those represented by the following (I) to (III).

Among these leaving groups, chlorine atom, bromine atom, triflate, iodine atom, B (OR ²² ) ₂ , or B (OR ²³ ) ₃ is selected from the viewpoint of ease of post-reaction treatment and raw material procurement. preferable.

Next, reaction formula (1) will be described.
As shown in the reaction of the reaction formula (1), the compound (1) of the present invention is obtained by reacting the compound (10) or the compound (11) with the compound (21) in the presence of a metal catalyst or in the presence of a base and a metal catalyst. And can be synthesized by performing a coupling reaction.
In addition, it is preferable that a metal catalyst is a palladium catalyst, a nickel catalyst, or a copper catalyst in reaction of Reaction formula (1) at the point which the efficiency etc. of a coupling reaction are excellent.
In the reaction of reaction formula (1), it is also possible to carry out the reaction by adding a base, and it is preferable to add a base from the viewpoint of improving the reaction yield. However, when X ¹ to X ⁷ and Y are a hydrogen atom, a chlorine atom, a bromine atom, a triflate, an iodine atom, B (OR ²² ) ₂ , or Si (R ²¹ ) ₃ , it is essential to add a base. .

Further, a phase transfer catalyst can be added in the reaction of the reaction formula (1). The phase transfer catalyst is not particularly limited. For example, 18-crown-6-ether or the like can be used. The amount added is an arbitrary amount within a range that does not significantly inhibit the reaction.

The metal catalyst used in the reaction of the reaction formula (1) is not particularly limited, and examples thereof include a palladium catalyst, a copper catalyst, and a nickel catalyst.

The palladium catalyst is not particularly limited, and examples thereof include salts of palladium chloride, palladium acetate, palladium trifluoroacetate, palladium nitrate, and the like. Further, π-allyl palladium chloride dimer, palladium acetylacetonate, bis (dibenzylideneacetone) palladium, tris (dibenzylideneacetone) dipalladium, dichlorobis (triphenylphosphine) palladium, tetrakis (triphenylphosphine) palladium, tri (tert Examples include -butyl) phosphine palladium and dichloro (1,1'-bis (diphenylphosphino) ferrocene) palladium. Among them, a palladium complex having a tertiary phosphine as a ligand, such as dichlorobis (triphenylphosphine) palladium, tetrakis (triphenylphosphine) palladium, tri (tert-butyl) phosphinepalladium, is preferable in terms of high yield, and is available. In terms of ease, tri (tert-butyl) phosphine palladium is more preferable.

The copper catalyst is not particularly limited, and examples thereof include copper chloride, copper bromide, copper iodide, copper oxide, and copper triflate. Among these, copper oxide and copper iodide are preferable from the viewpoint of excellent coupling reaction results, and copper oxide is more preferable from the viewpoint of easy availability.

The nickel catalyst is not particularly limited. For example, nickel chloride, nickel bromide, nickel chloride hydrate, dichloro (dimethoxyethane) nickel, dichloro [1,2-bis (diphenylphosphino) ethane] nickel Dichloro [1,3-bis (diphenylphosphino) propane] nickel, dichloro [1,4-bis (diphenylphosphino) butane] nickel, dichloro [1,1′-bis (diphenylphosphino) ferrocene] nickel ( Examples of the four include nickel complexes having tertiary phosphine as a ligand) and dichloro (N, N, N ′, N′-tetramethylethylenediamine) nickel. Among them, dichloro (dimethoxyethane) nickel, dichloro [1,4-bis (diphenylphosphino) butane] nickel, and dichloro (N, N, N ', N'-tetramethylethylenediamine) nickel have excellent coupling reaction results. In terms of this point, dichloro (dimethoxyethane) nickel and dichloro [1,4-bis (diphenylphosphino) butane] nickel are more preferable in terms of easy availability.

For palladium complexes having the above tertiary phosphine as a ligand and nickel complexes having a tertiary phosphine as a ligand, a tertiary phosphine is added to a palladium salt, nickel salt or complex thereof. Can be adjusted. The adjustment can be performed separately from the reaction and then added to the reaction system, or can be performed in the reaction system.

The tertiary phosphine is not particularly limited. For example, triphenylphosphine, trimethylphosphine, tributylphosphine, tri (tert-butyl) phosphine, tricyclohexylphosphine, tert-butyldiphenylphosphine, 9,9-dimethyl. -4,5-bis (diphenylphosphino) xanthene, 2- (diphenylphosphino) -2 '-(N, N-dimethylamino) biphenyl, 2- (di-tert-butylphosphino) biphenyl, 2- ( Dicyclohexylphosphino) biphenyl, bis (diphenylphosphino) methane, 1,2-bis (diphenylphosphino) ethane, 1,3-bis (diphenylphosphino) propane, 1,4-bis (diphenylphosphino) butane, 1,1'-bis (dipheny Phosphino) ferrocene, tri (2-furyl) phosphine, tri (o-tolyl) phosphine, tris (2,5-xylyl) phosphine, (±) -2,2′-bis (diphenylphosphino) -1,1 ′ -Binaphthyl, 2-dicyclohexylphosphino-2 ', 4', 6'-triisopropylbiphenyl and the like can be exemplified. Of these, (tert-butyl) phosphine or 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl is preferred because it is readily available and yields are good.

When a tertiary phosphine is added to a palladium salt, nickel salt or complex thereof, the addition amount of the tertiary phosphine is 1 mol of palladium salt, nickel salt or complex thereof (in terms of palladium or nickel atom). On the other hand, the amount is preferably 0.1 to 10 times mol, and more preferably 0.3 to 5 times mol in terms of good yield.

In addition, it is also possible to add a ligand separately to said copper catalyst. The ligand added to the copper catalyst is not particularly limited. For example, 2,2′-bipyridine, 1,10-phenanthroline, N, N, N ′, N′-tetramethylethylenediamine, triphenyl Examples include phosphine, 2- (dicyclohexylphosphino) biphenyl, and the like. Of these, 1,10-phenanthroline is preferred because it is readily available and yields are good.

In the reaction formula (1), the base that can be used is not particularly limited. For example, sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, lithium carbonate, cesium carbonate, potassium acetate, sodium acetate , Potassium phosphate, sodium phosphate, sodium fluoride, potassium fluoride, cesium fluoride and the like. Among these, potassium carbonate, potassium phosphate, or sodium hydroxide is preferable in terms of a good yield.

The reaction of reaction formula (1) is preferably carried out in a solvent. The solvent is not particularly limited, and examples thereof include water, dimethyl sulfoxide (DMSO), dimethylformamide (DMF), tetrahydrofuran (THF), toluene, benzene, diethyl ether, 1,4-dioxane, ethanol, butanol or xylene. These may be exemplified, and these may be used in appropriate combination. Of these, a mixed solvent of 1,4-dioxane, xylene, toluene and butanol or a mixed solvent of xylene and butanol is preferable in terms of a good yield.

The compound (21) in the reaction formula (1) is not particularly limited, but examples thereof include the compounds represented by the following 4-1 to 4-63.

(These substituents are each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, or 1 to 3 carbon atoms. A halogenated methyl group, a halogenated methoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms may be used as a substituent.
Y is the same definition as Y in the general formula (21). )

Compound (21) is, for example, J. Tsuji, "Palladium Reagents and Catalysts", John Wiley & Sons, 2004, Journal of Organic Chemistry, 60, 7508-7510, 1995, Journal 16: Journal of Japan. 10, 941-944, 2008, or Chemistry of Materials, 20, 595-15953, 2008. In addition, any hydrogen atom in compound (21) may be substituted with a deuterium atom.

In the reaction formula (1), the compound (10) or (11) is reacted with the compound (21) in the presence or absence of a base in the presence of a metal catalyst to produce the compound (1) of the present invention. By applying the reaction conditions of the Suzuki-Miyaura reaction, the target product can be obtained in good yield.

The amount of the metal catalyst used in the reaction formula (1) is not particularly limited as long as it is a so-called catalyst amount, but is 0.1% with respect to 1 mol of the compound (10) or (11) in terms of good yield. It is preferred that the amount be 0.01 mol (converted to metal atoms).

The amount of the base used is not particularly limited, but it is preferably 0.5 to 10 times by mole, and 1 to 4 times by mole in terms of good yield, relative to 1 mole of compound (21). Is more preferable.

There is no particular limitation on the molar ratio of the compound (10) or (11) and the compound (21) used in the reaction formula (1), but 1 mole per 1 mole of the leaving group of the compound (10) or (11). It is preferable to use ˜10 times mol of compound (21), and more preferably 1 to 3 times mol of compound (21) in terms of good yield.

In addition, the compound (10) and the compound (11) industrially supply a compound such as the compound (1) that is remarkably excellent in low driving voltage property, high light emission efficiency, and long life of the organic electroluminescence device. Therefore, it is an excellent material and is very valuable industrially.

Next, reaction formulas (2), (3) and (4) will be described.
The reactions of the reaction formulas (2), (3) and (4) can be carried out by subjecting the compounds described in the respective reaction formulas to a ring condensation reaction in the presence of a base or an acid, respectively.
The base that can be used in the reactions of the reaction formulas (2), (3) and (4) is not particularly limited, and examples thereof include potassium tert-butoxide, sodium hydroxide, potassium hydroxide and sodium carbonate. And potassium carbonate, lithium carbonate, cesium carbonate, potassium acetate, sodium acetate, potassium phosphate, sodium phosphate, sodium fluoride, potassium fluoride, cesium fluoride, and the like. Of these, potassium tert-butoxide is preferred because of its good yield.
The acid that can be used in the reaction is not particularly limited, and examples thereof include hydrochloric acid, sulfuric acid, carbonic acid, phosphoric acid, acetic acid, benzoic acid, trifluoroacetic acid, trifluoromethanesulfonic acid, and p-toluenesulfone. Examples include acids and various Lewis acids. _The Lewis acid _{_{_{_{AlCl 3, Al (OTf) 3}}}} , ZnCl 2, ZnBr 2, ZnI 2, Zn (OTf) 2, FeCl 2, FeCl 3, BF 3, GaCl 3, InCl 3, InBr 3, InI 3, In (OTf) ₃ , Yb (OTf) ₃ , SiMe ₃ Cl, SiMe ₃ I, SiMe ₃ OTf, and the like. Of these, sulfuric acid is preferred because of its good yield.
The reactions of reaction formulas (2), (3) and (4) are preferably carried out in a solvent. The solvent is not particularly limited, and examples thereof include water, dimethyl sulfoxide (DMSO), dimethylformamide (DMF), tetrahydrofuran (THF), toluene, benzene, diethyl ether, 1,4-dioxane, ethanol, butanol or xylene. These may be exemplified, and these may be used in appropriate combination. Of these, THF, DMF, and xylene are preferable in terms of good yield.
The amount of the base used is not particularly limited, but is preferably 0.5 to 10-fold mol per mol of the compounds (13), (16) and (19), and the yield is good. More preferably, it is 1.1 to 4.0 moles.

Next, the reaction of the reaction formula (2) will be described.
The reaction formula (2) can be performed in one pot, but can also be performed stepwise as shown in the following reaction formulas (6) and (7).

(In the general formula, Ar ¹ , Ar ² , R ¹ to R ⁴ , and Z have the same definitions as those in Reaction Formula (2).)

Compounds (12) to (14) used in the reaction of reaction formula (2) can be produced using a known production method, or commercially available products can be used.

The compound (12) is not particularly limited, and examples thereof include the following compounds represented by 5-1 to 5-38.

The compound (13) is not particularly limited, and examples thereof include the compounds represented by the following 6-1 to 6-15.

The compound (14) is not particularly limited, and examples thereof include the compounds represented by the following 7-1 to 7-39.

Reaction formula (2) can be decomposed into reaction formulas (6) and (7). That is, in this reaction, compound (12) is produced by reacting compound (12) with compound (13) in the presence of a base. The compound (22) is reacted with the compound (14) as represented by the reaction formula (7) to obtain the compound (1) of the present invention.
The amount of the base to be used is not particularly limited, but is preferably 0.5 to 10 times mol per mol of the compound (13), and 1.1 to 4.0 times in terms of good yield. More preferably, it is a mole.
The molar ratio of the compound (12) and the compound (13) used in the reaction formula (6) is not particularly limited, but the compound (12) is 0.1 to 10-fold mol per mol of the compound (13). In terms of a good yield of the compound (22), it is preferably 1.1 to 2.0 moles.
There is no particular limitation on the molar ratio of the compound (22) and the compound (14) used in the reaction formula (7), but the compound (14) is 0.1 to 20-fold mol with respect to 1 mol of the compound (22). In view of a good yield of the benzothienopyrimidine compound (1) of the present invention, 1.0 to 5 times is preferable.

Next, reaction of Reaction formula (12) is demonstrated.
The reaction formula (12) can be performed in one pot, but can also be performed stepwise as shown in the following reaction formulas (16) and (17).

The compound (25) is not particularly limited, and examples thereof include the compounds represented by the following 25-1 to 25-38.

The compound (26) is not particularly limited, and examples thereof include the compounds represented by the following 26-1 to 26-15.

Compound (14) is not particularly limited, and examples thereof include the same compounds as those in Reaction Formula (2).

Reaction formula (2) can be decomposed into reaction formulas (16) and (17). That is, in this reaction, compound (22) is produced by reacting compound (25) with compound (26) in the presence of a base. Compound (1) of the present invention is obtained by reacting Compound (22) with Compound (14) as represented by Reaction Formula (17).
The amount of the base used is not particularly limited, but it is preferably 0.5 to 10 times by mole with respect to 1 mole of compound (26), and 1.1 to 4.0 times in terms of good yield. More preferably, it is a mole.
The molar ratio of the compound (25) and the compound (26) used in the reaction formula (16) is not particularly limited, but the compound (25) is 0.1 to 10-fold mol per mol of the compound (26). In terms of a good yield of the compound (22), it is preferably 1.1 to 2.0 moles.
There is no particular limitation on the molar ratio of the compound (22) and the compound (14) used in the reaction formula (17), but the compound (14) is 0.1 to 20-fold mol with respect to 1 mol of the compound (22). In view of a good yield of the benzothienopyrimidine compound (1) of the present invention, 1.0 to 5 times is preferable.

Next, the reaction of the reaction formula (3) will be described.
Reaction formula (3) can be carried out in one pot, but can also be carried out stepwise as shown in the following reaction formulas (8) and (9).

(In the general formula, Ar ¹¹ , Ar ¹² , X ¹ to X ⁶ , and Z have the same definitions as in reaction formula (3).)

Compounds (15) to (17) can be produced using known methods, or commercially available products can also be used.

The compound (15) is not particularly limited, and examples thereof include the compounds represented by the following 8-1 to 8-10.

The compound (16) is not particularly limited, and examples thereof include the compounds represented by the following 9-1 to 9-5.

The compound (17) is not particularly limited, and examples thereof include the compounds represented by the following 10-1 to 10-12.

Reaction formula (3) is a method for producing the compound (10) of the present invention by reacting the compound (15), the compound (16) and the compound (17) in the presence of a base or an acid.

Reaction formula (3) can be decomposed into reaction formulas (8) and (9). That is, in this reaction, compound (23) is produced by reacting compound (15) with compound (16) in the presence of a base. The compound (10) of the present invention is obtained by reacting the compound (23) with the compound (17) as represented by the reaction formula (9).
Although the compound (23) may be isolated, it may be used for the reaction (9) which is the next step in one pot without isolation.
The amount of the base to be used is not particularly limited, but is preferably 0.5 to 10 times by mole with respect to 1 mole of the compound (16), and 1.1 to 4.0 times in terms of good yield. More preferably, it is a mole.
The molar ratio of the compound (15) and the compound (16) used in the reaction formula (8) is not particularly limited, but the compound (15) is 0.1 to 10-fold mol per mol of the compound (16). In terms of good yield of compound (23), it is preferably 1.1 to 2.0 moles.
There is no particular limitation on the molar ratio of the compound (23) and the compound (17) used in the reaction formula (9), but the compound (17) is 0.1 to 20-fold mol with respect to 1 mol of the compound (23). In view of good yield of the compound (10) of the present invention, 1.0 to 5 times is preferable.

Next, reaction of Reaction formula (13) is demonstrated.
Reaction formula (13) can be performed in one pot, but can also be performed stepwise as shown in reaction formulas (18) and (19) below.

Compounds (27) to (28) can be produced using known methods, or commercially available products can also be used.

The compound (27) is not particularly limited, and examples thereof include the compounds represented by the following 27-1 to 27-10.

The compound (28) is not particularly limited, and examples thereof include the compounds represented by the following 28-1 to 28-5.

Compound (17) is not particularly limited, and examples thereof include the same compounds as those in Reaction Formula (3).

Reaction formula (13) is a method for producing compound (10) of the present invention by reacting compound (27), compound (28) and compound (17) in the presence of a base or acid.
Reaction formula (13) can be decomposed into reaction formulas (18) and (19). That is, in this reaction, compound (23) is produced by reacting compound (27) with compound (28) in the presence of a base. The compound (10) of the present invention is obtained by reacting the compound (23) with the compound (17) as represented by the reaction formula (9).
Although the compound (23) may be isolated, it may be used for the reaction (9) which is the next step in one pot without isolation.
The amount of the base to be used is not particularly limited, but is preferably 0.5 to 10 times by mole with respect to 1 mole of compound (28), and 1.1 to 4.0 times in terms of good yield. More preferably, it is a mole.
The molar ratio of the compound (27) and the compound (28) used in the reaction formula (18) is not particularly limited, but the compound (27) is 0.1 to 10 moles per 1 mole of the compound (28). In terms of good yield of compound (23), it is preferably 1.1 to 2.0 moles.
The molar ratio of the compound (23) and the compound (17) used in the reaction formula (19) is not particularly limited, but the compound (17) is 0.1 to 20-fold mol with respect to 1 mol of the compound (23). In view of good yield of the compound (10) of the present invention, 1.0 to 5 times is preferable.

Next, reaction formula (4) will be described.
The reaction formula (4) can be performed in one pot, but can also be performed stepwise as shown in the following reaction formulas (10) and (11).

(In the general formula, Ar ¹² , X ¹ to X ⁴ , X ⁶ , X ⁷ , Z, and R ⁵ have the same definitions as in Reaction Formula (4).)

Reaction formula (4) is a method for producing compound (20) by reacting compound (18), compound (19) and compound (17) in the presence of a base or acid.
The compound (18) is not particularly limited, and examples thereof include compounds represented by methyl acetate, ethyl acetate, propyl acetate, butyl acetate, pentyl acetate, hexyl acetate, benzyl acetate, phenyl acetate, and naphthyl acetate. can do.

Reaction formula (4) can be decomposed into reaction formulas (10) and (11). That is, in this reaction, Compound (24) is produced by reacting Compound (18) with Compound (19) in the presence of a base. The compound (20) of the present invention is obtained by reacting the compound (24) with the compound (17) as represented by the reaction formula (11).
Although the compound (24) may be isolated, it may be used for the reaction (11) which is the next step in one pot without isolation.
The amount of the base to be used is not particularly limited, but is preferably 0.5 to 10 times by mole with respect to 1 mole of compound (18), and 1.1 to 4.0 times in terms of good yield. More preferably, it is a mole.
The molar ratio of the compound (18) and the compound (19) used in the reaction formula (10) is not particularly limited, but the compound (18) is 0.1 to 10-fold mol per mol of the compound (19). In terms of good yield of compound (24), it is preferably 1.1 to 2.0 moles.
The molar ratio of the compound (24) and the compound (17) used in the reaction formula (11) is not particularly limited, but the compound (17) is 0.1 to 20-fold mol with respect to 1 mol of the compound (24). In view of good yield of the compound (20), 1.0 to 5 times is preferable.

Next, reaction formula (5) will be described.
Reaction formula (5) is a method for producing compound (11) by reacting compound (20) with a halogenating agent or sulfonylating agent in the presence or absence of a base. The halogenating agent is not particularly limited, and examples thereof include thienyl chloride, thienyl bromide, thienyl iodide, phosphoryl chloride, phosphoryl bromide, and phosphoryl iodide. The sulfonylating agent is not particularly limited, and examples thereof include trifluoromethanesulfonic acid anhydride, toluenesulfonic acid anhydride, toluenesulfonic acid chloride, methanesulfonic acid chloride, and nitrobenzenesulfonic acid chloride.
Although it does not specifically limit as a base used by Reaction formula (5), The same thing as the base shown by Reaction formula (2), (3) and (4) can be used.
There is no particular limitation on the molar ratio of the compound (20) and the reactant used in the reaction of the reaction formula (5), but the amount of the reactant is preferably 0.1 to 20 moles per mole of the compound (20). From the viewpoint of good yield of the benzothienopyrimidine compound (11) of the present invention, 1.0 to 5 times is preferable.

Next, reaction formula (14) will be described.
The reaction formula (14) can be performed in one pot, but can also be performed stepwise as shown in the following reaction formulas (20) and (11).

Reaction formula (14) is a method for producing compound (20) by reacting compound (29), compound (28) and compound (17) in the presence of a base or acid.
Although it does not specifically limit as compound (29), For example, methyl thioglycolate, ethyl thioglycolate, propyl thioglycolate, butyl thioglycolate, pentyl thioglycolate, hexyl thioglycolate, phenyl thioglycolate And compounds represented by benzylthioglycolate and naphthylthioglycolate.
Reaction formula (14) can be decomposed into reaction formulas (20) and (11). That is, in this reaction, compound (29) reacts with compound (28) in the presence of a base to produce compound (24). The compound (20) of the present invention is obtained by reacting the compound (24) with the compound (17) as represented by the reaction formula (11).
Although the compound (24) may be isolated, it may be used for the reaction (11) which is the next step in one pot without isolation.
The amount of the base to be used is not particularly limited, but is preferably 0.5 to 10 times by mole with respect to 1 mole of compound (28), and 1.1 to 4.0 times in terms of good yield. More preferably, it is a mole.
The molar ratio of the compound (29) and the compound (28) used in the reaction formula (20) is not particularly limited. In terms of good yield of compound (24), it is preferably 1.1 to 2.0 moles.
The molar ratio of the compound (24) and the compound (17) used in the reaction formula (11) is not particularly limited, but the compound (17) is 0.1 to 20-fold mol with respect to 1 mol of the compound (24). In view of good yield of the compound (20), 1.0 to 5 times is preferable.

The purity of the compounds (1), (10) and (11) of the present invention can be increased by carrying out treatments such as reprecipitation, concentration, filtration and purification after the completion of each reaction. In order to further increase the purity, purification may be performed by recrystallization, silica gel column chromatography, sublimation, or the like, if necessary.

The present invention is an organic electroluminescence device containing a benzothienopyrimidine compound represented by the general formula (1), and the benzothienopyrimidine compound is preferably used for an electron transport layer, an electron injection layer, or a light emitting layer.

The benzothienopyrimidine compound represented by the general formula (1) can be preferably used as an electron transporting material (electron transporting material, electron injecting material, etc.) of an organic electroluminescence device. At this time, for the anode, the hole injection layer, the hole transport layer, the electron blocking layer, the light emitting layer, the light emitting layer dopant, the light emitting layer host, the cathode, and the like used in combination, generally known materials are selected by those skilled in the art. Can be used.

The configuration of the organic electroluminescent element may be any conventionally known one, and is not particularly limited.

Although there is no limitation in particular in the manufacturing method of the thin film for organic electroluminescent elements containing the compound (1) of this invention, The film-forming by a vacuum evaporation method can be mentioned as a preferable example. Film formation by the vacuum evaporation method can be performed by using a general-purpose vacuum evaporation apparatus. The vacuum degree of the vacuum chamber when forming a film by the vacuum evaporation method is such that the production tact time for producing the organic electroluminescent element is short and the production cost is superior, so that commonly used diffusion pumps, turbo molecular pumps, cryogenic pumps are used. It is preferably about 1 × 10 ⁻² to 1 × 10 ⁻⁶ Pa that can be reached by a pump or the like, and the deposition rate is preferably 0.005 to 10 nm / second, depending on the thickness of the film to be formed. Moreover, the thin film for organic electroluminescent elements which consists of a compound (1) can also be manufactured by the solution coating method. For example, the compound (1) is dissolved in an organic solvent such as chloroform, dichloromethane, 1,2-dichloroethane, chlorobenzene, toluene, ethyl acetate or tetrahydrofuran, and a spin coating method, ink jet method, casting method or Film formation by a dip method or the like is also possible.

Since the benzothienopyrimidine compound represented by the general formula (1) of the present invention has high solubility in chloroform, dichloromethane, 1,2-dichloroethane, chlorobenzene, toluene, ethyl acetate, tetrahydrofuran, etc., a general-purpose apparatus was used. Film formation by a spin coat method, an ink jet method, a cast method, a dip method or the like is also possible.

A typical structure of the organic electroluminescence device that can obtain the effects of the present invention includes a substrate, an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode.
The anode and cathode of the organic electroluminescent element are connected to a power source through an electrical conductor. The organic electroluminescent device operates by applying a potential between the anode and the cathode. Holes are injected into the organic electroluminescent device from the anode, and electrons are injected into the organic electroluminescent device at the cathode.
The organic electroluminescent device is typically placed on a substrate, and the anode or cathode can be in contact with the substrate. The electrode in contact with the substrate is called the lower electrode for convenience. Generally, the lower electrode is an anode, but the organic electroluminescence device of the present invention is not limited to such a form.

The substrate may be light transmissive or opaque depending on the intended emission direction. The light transmission characteristics can be confirmed by electroluminescence emission through the substrate. Generally, transparent glass or plastic is used as the substrate. The substrate may be a composite structure including multiple material layers.

When the electroluminescent emission is confirmed through the anode, the anode is formed by passing or substantially passing through the emission.
Common transparent anode (anode) materials used in the present invention include indium-tin oxide (ITO), indium-zinc oxide (IZO), or tin oxide. Further, other metal oxides such as aluminum or indium-doped tin oxide, magnesium-indium oxide, or nickel-tungsten oxide are also preferably used. In addition to these oxides, metal nitrides such as gallium nitride, metal selenides such as zinc selenide, or metal sulfides such as zinc sulfide can be used as the anode. The anode can be modified with plasma deposited fluorocarbon.

When the electroluminescence emission is confirmed only through the cathode, the transmission characteristics of the anode are not important, and any conductive material that is transparent, opaque or reflective can be used. Examples of conductors for this application include gold, iridium, molybdenum, palladium, platinum and the like.

The hole injection layer can be provided between the anode and the hole transport layer. The material of the hole injection layer is useful for improving the film formation characteristics of an organic material layer such as a hole transport layer and a hole injection layer, and facilitating injection of holes into the hole transport layer. Examples of materials suitable for use in the hole injection layer include porphyrin compounds, plasma deposited fluorocarbon polymers, and amines having aromatic rings such as biphenyl groups, carbazole groups, such as m-MTDATA (4,4 ' , 4 ″ -tris [(3-methylphenyl) phenylamino] triphenylamine), 2T-NATA (4,4 ′, 4 ″ -tris [(N-naphthalen-2-yl) -N-phenylamino ] Triphenylamine), triphenylamine, tolylamine, tolyldiphenylamine, N, N'-diphenyl-N, N'-bis (3-methylphenyl) -1,1'-biphenyl-4,4'-diamine, N, N, N′N′-tetrakis (4-methylphenyl) -1,1′-biphenyl-4,4′-diamine, MeO-TPD N, N, N′N′-tetrakis (4-methoxyphenyl) -1,1′-biphenyl-4,4′-diamine), N, N′-diphenyl-N, N′-dinaphthyl-1,1 ′ -Biphenyl-4,4'-diamine, N, N'-bis (methylphenyl) -N, N'-bis (4-normalbutylphenyl) phenanthrene-9,10-diamine, N, N'-diphenyl-N N'-bis (9-phenylcarbazol-3-yl) -1,1'-biphenyl-4,4'-diamine and the like.

The hole transport layer of the organic electroluminescence device preferably contains one or more hole transport compounds (hole transport materials) such as aromatic tertiary amines. Aromatic tertiary amines are compounds that contain one or more trivalent nitrogen atoms that are bonded only to carbon atoms, and one or more of these carbon atoms have an aromatic ring. Forming. Specifically, the aromatic tertiary amine can be an arylamine, such as a monoarylamine, diarylamine, triarylamine, or a polymeric arylamine.

A benzothienopyrimidine compound represented by the general formula (1) can be used as a hole transport material, and an aromatic tertiary amine having one or more amino groups can be used as another material. Can do. Furthermore, a polymeric hole transport material can be used. For example, poly (N-vinylcarbazole) (PVK), polythiophene, polypyrrole, polyaniline and the like can be used.
Specifically, NPD (N, N′-bis (naphthalen-1-yl) -N, N′-diphenyl-1,1′-biphenyl-4,4′-diamine), α-NPD (N, N '-Di (1-naphthyl) -N, N'-diphenyl-1,1'-biphenyl-4,4'-diamine), TPBi (1,3,5-tris (1-phenyl-1H-benzimidazole) 2-yl) benzene), TPD (N, N′-bis (3-methylphenyl) -N, N′-diphenyl-1,1′-biphenyl-4,4′-diamine) and the like.

Dipyrazino [2,3-f: 2 ′, 3′-h] quinoxaline-2,3,6,7,10,11-hexacarbonitrile as a charge generation layer between the hole injection layer and the hole transport layer (HAT-CN), 7,7 ', 8,8'-tetracyanoquinodimethane (TCNQ), 2,3,5,6-tetrafluoro-7,7', 8,8'-tetracyanoquinodi A layer containing methane (F ₄ -TCNQ) or the like may be provided, and the hole transport layer may be doped with these compounds.

The light emitting layer of the organic electroluminescent element contains a phosphorescent material or a fluorescent material. In this case, light emission occurs as a result of recombination of electron-hole pairs in this region. The light-emitting layer may be formed from a single material that includes both small molecules and polymers, but more commonly is formed from a host material doped with a guest compound, where light emission is primarily from a dopant, Any color can be emitted.

As the host material of the light emitting layer, a benzothienopyrimidine compound represented by the general formula (1) can be used. Examples of other materials include a biphenyl group, a fluorenyl group, a triphenylsilyl group, a carbazole group, Examples thereof include compounds having a pyrenyl group or an anthranyl group, and these materials can be used alone or in combination with a benzothienopyrimidine compound represented by the general formula (1).
Specifically, DPVBi (4,4′-bis (2,2-diphenylvinyl) -1,1′-biphenyl), BCzVBi (4,4′-bis (9-ethyl-3-carbazovinylene) 1,1 '-Biphenyl), TBADN (2-tert-butyl-9,10-di (2-naphthyl) anthracene), ADN (9,10-di (2-naphthyl) anthracene), CBP (4,4'-bis ( Carbazol-9-yl) biphenyl), CDBP (4,4′-bis (carbazol-9-yl) -2,2′-dimethylbiphenyl), 9,10-bis (biphenyl) anthracene and the like.
The host material in the light emitting layer may be an electron transport material as defined below, a hole transport material as defined above, another material that supports hole-electron recombination, or a combination of these materials.

Examples of fluorescent dopants include pyrene, anthracene, tetracene, xanthene, perylene, rubrene, coumarin, rhodamine and quinacridone, dicyanomethylenepyran compounds, thiopyran compounds, polymethine compounds, pyrylium or thiapyrylium compounds, fluorene derivatives, perifanthene derivatives, indeno Examples include perylene derivatives, bis (azinyl) amine boron compounds, bis (azinyl) methane compounds, carbostyryl compounds, and compounds that exhibit thermally activated delayed fluorescence.
Examples of useful phosphorescent dopants include organometallic complexes of transition metals such as iridium, platinum, palladium, osmium.
Examples of dopants include Alq ₃ (tris (8-hydroxyquinoline) aluminum)), DPAVBi (4,4′-bis [4- (di-para-tolylamino) styryl] biphenyl), perylene, Ir (PPy) ₃ ( And tris (2-phenylpyridine) iridium (III), FlrPic (bis (3,5-difluoro-2- (2-pyridyl) phenyl- (2-carboxypyridyl) iridium (III)), and the like.

A benzothienopyrimidine compound represented by the general formula (1) of the present invention can be used as the thin film forming material used to form the electron transport layer of the organic electroluminescence device of the present invention. Note that the electron transporting layer may contain other electron transporting materials. Examples of other electron transporting materials include alkali metal complexes, alkaline earth metal complexes, and earth metal complexes.
Desirable alkali metal complexes, alkaline earth metal complexes, or earth metal complexes include, for example, 8-hydroxyquinolinate lithium (Liq), bis (8-hydroxyquinolinato) zinc, bis (8-hydroxyquinolinate). ) Copper, bis (8-hydroxyquinolinato) manganese, tris (8-hydroxyquinolinato) aluminum, tris (2-methyl-8-hydroxyquinolinato) aluminum, tris (8-hydroxyquinolinato) gallium Bis (10-hydroxybenzo [h] quinolinato) beryllium, bis (10-hydroxybenzo [h] quinolinato) zinc, bis (2-methyl-8-quinolinato) chlorogallium, bis (2-methyl-8-quinolinato) (O-cresolate) gallium, bis (2-methyl-8-quino) Inert) -1-naphthoquinone Trad aluminum, bis (2-methyl-8-quinolinato) -2-naphthoquinone Trad gallium, and the like.

A hole blocking layer may be provided between the light emitting layer and the electron transport layer for the purpose of improving carrier balance. Preferred compounds for the hole blocking layer include BCP (2,9-dimethyl-4,7-diphenyl-1,10-phenanthroline), Bphen (4,7-diphenyl-1,10-phenanthroline), BAlq (bis (2 -Methyl-8-quinolinolato) -4- (phenylphenolato) aluminum), bis (10-hydroxybenzo [h] quinolinato) beryllium) and the like.

In the organic electroluminescent device of the present invention, an electron injection layer may be provided for the purpose of improving electron injection properties and improving device characteristics (for example, light emission efficiency, low voltage driving, or high durability).
Preferred compounds for the electron injection layer include benzothienopyrimidine compounds represented by the general formula (1), fluorenone, anthraquinodimethane, diphenoquinone, thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, and perylenetetracarboxylic acid. Examples include acid, fluorenylidenemethane, anthraquinodimethane, and anthrone. In addition, the above-mentioned metal complexes, alkali metal oxides, alkaline earth oxides, rare earth oxides, alkali metal halides, alkaline earth halides, rare earth halides, SiO _x , AlO _x , SiN _x , SiON, _{_{AlON, GeO X, LiO X,}} LiON, TiO X, TiON, TaO X, TaON, TaN X, various oxides of C, etc. may be used an inorganic compound such as a nitride, and oxynitride.

If light emission is seen only through the anode, the cathode used in the present invention can be formed from almost any conductive material. Desirable cathode materials include sodium, sodium-potassium alloy, magnesium, lithium, magnesium / copper mixture, magnesium / silver mixture, magnesium / aluminum mixture, magnesium / indium mixture, aluminum / aluminum oxide (Al ₂ O ₃ ) mixture, indium , Lithium / aluminum mixtures, rare earth metals and the like.

Hereinafter, the present invention will be described in more detail with reference to synthesis examples, examples, comparative examples, and reference examples, but the present invention is not construed as being limited thereto.

Example 1

Under an argon stream, acetophenone (2.64 g) and 3-chloro-1,2-benzisothiazole (3.39 g) were added to DMF (20 mL), and potassium tert-butoxide in DMF suspension (50 mL). And then stirred at 100 ° C. for 20 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water and then with hexane to obtain the desired 3-amino-2-benzoylbenzo [b] thiophene (A-1) yellow powder (yield 4.3 g, yield 86%). It was.
¹ H-NMR (DMSO-d ₆ ), δ (ppm): 7.38 (t, J = 7.2 Hz, 1H), 7.45-7.54 (m, 4H), 7.74 (d, J = 8.1 Hz, 2H), 7.78 (d, J = 8.1 Hz, 1H), 8.20 (d, J = 8.1 Hz, 1H), 8.27 (s, 2H).

Under a stream of argon, Compound A-1 (1.27 g), 3-bromo-5-chlorobenzonitrile (2.16 g), and potassium tert-butoxide (842 mg) were added to xylene (25 mL), and 4. Stir for 5 hours. The reaction mixture was allowed to cool to room temperature, and methanol was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a light brown solid. This was recrystallized from o-xylene to give a light brown powder of the desired 2- (3-bromo-5-chlorophenyl) -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-1) ( Yield 1.42 g, 63% yield).
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.61-7.70 (m, 5H), 7.73 (t, J = 7.6 Hz, 1H), 7.96 (d, J = 8.0 Hz, 1H), 8.36 (d, J = 8.0 Hz, 2H), 8.72-8.75 (m, 2H), 8.83 (s, 1H).

Example 2

Under an argon stream, compound B-1 (1.36 g), 4- (2-pyridyl) phenylboronic acid (1.43 g), palladium acetate (13.5 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′ , 6'-Triisopropylbiphenyl (85.8 mg) was added to toluene (30 mL), and 3M aqueous potassium carbonate solution (4.8 mL) and 1-butanol (4.8 mL) were added, followed by heating for 2.5 hours. Refluxed. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid was recrystallized from o-xylene, and the desired 2- [4,4 ″ -bis (2-pyridyl)-[1,1 ′: 3 ′, 1 ″]-terphenyl-5′- A yellow powder (yield 1.59 g, 82% yield) of [yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-1) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.30 (dd, J = 7.5, 4.8 Hz, 2H), 7.62-7.71 (m, 4H), 7.74 ( t, J = 7.5 Hz, 1H), 7.834 (t, J = 7.5 Hz, 2H), 7.87 (d, J = 7.9 Hz, 2H), 7.98 (d, J = 7) .9 Hz, 1H), 7.99 (d, J = 8.4 Hz, 4H), 8.10 (s, 1H), 8.22 (d, J = 8.4 Hz, 4H), 8.44 (d , J = 8.2 Hz, 2H), 8.78 (d, J = 4.8 Hz, 2H), 8.81 (d, J = 7.8 Hz, 1H), 9.10 (s, 2H).

Example 3

Under an argon stream, compound B-1 (1.12 g), 9-phenanthreneboronic acid (581 mg), and tetrakis (triphenylphosphine) palladium (57.8 mg) were added to THF (24 mL), and 4N-sodium hydroxide was added. Aqueous solution (1.9 mL) was added and then heated to reflux for 16 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid was recrystallized from toluene to give a yellow powder of 2- [3-chloro-5- (9-phenanthryl) phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-2) (Yield 1.16 g, 85% yield).
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.59-7.76 (m, 10H), 7.84 (s, 1H), 7.95 (m, 3H), 8.37 (d , J = 8.0 Hz, 2H), 8.71 (d, J = 7.8 Hz, 1H), 8.79 (d, J = 8.2 Hz, 1H), 8.83-8.86 (m, 2H), 8.89 (s, 1H).

Under an argon stream, compound B-2 (1.14 g), 4- (2-pyridyl) phenylboronic acid (497 mg), palladium acetate (9.4 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6 '-Triisopropylbiphenyl (59.5 mg) was added to toluene (21 mL), 3M aqueous potassium carbonate solution (2.1 mL) and 1-butanol (2.1 mL) were added, and the mixture was heated to reflux for 3 hours. After allowing the reaction mixture to cool, water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid was recrystallized from toluene to give the desired 2- [5- (9-phenanthryl) -4 '-(2-pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2- d] A yellow powder (yield 1.23 g, yield 89%) of pyrimidine (C-2) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.26-7.30 (m, 1H), 7.58-7.66 (m, 5H), 7.68-7.76 (m, 4H), 7.80 (t, J = 7.5 Hz, 1H), 7.84 (d, J = 7.7 Hz, 1H), 7.94 (s, 1H), 7.96 (d, J = 8.0 Hz, 1H), 7.9-8.02 (m, 4H), 8.12 (d, J = 8.3 Hz, 1H), 8.19 (d, J = 8.6 Hz, 2H), 8.41 (d, J = 8.1 Hz, 2H), 8.74 (d, J = 8.2 Hz, 1H), 8.76 (d, J = 4.9 Hz, 1H), 8.81 (d , J = 8.4 Hz, 1H), 8.86 (d, J = 8.0 Hz, 1H), 8.99 (s, 1H), 9.21 (s, 1H).

Example 4

Under an argon stream, compound B-1 (2.50 g), 4- (2-pyridyl) phenylboronic acid (1.32 g), and tetrakis (triphenylphosphine) palladium (128 mg) were added to THF (55 mL), and 3M aqueous potassium carbonate solution (4.4 mL) was added, and then the mixture was heated to reflux for 23 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid was recrystallized from xylene to give 2- [3-chloro-4 '-(2-pyridyl) biphenyl-5-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B- 3) of yellow powder (yield 2.66 g, yield 91%) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.28-7.32 (m, 1H), 7.62-7.70 (m, 4H), 7.34 (t, J = 7. 5 Hz, 1H), 7.80 (s, 1H), 7.82-7.87 (m, 2H), 7.89 (d, J = 8.4 Hz, 2H), 7.97 (d, J = 7.9 Hz, 1H), 8.19 (d, J = 8.4 Hz, 2H), 8.40 (d, J = 8.1 Hz, 2H), 8.76-8.79 (m, 3H), 8.97 (s, 1H).

Under an argon stream, compound B-3 (1.32 g), 1-pyreneboronic acid (738 mg), palladium acetate (11.2 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl ( 47.7 mg) was added to THF (50 mL), 3M-potassium carbonate aqueous solution (5.0 mL) was added, and the mixture was heated to reflux for 2 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid is purified by silica gel column chromatography (developing solvent: mixed solvent of toluene: chloroform = 50: 50 (volume ratio)) to give the desired 2- [5- (1-pyrenyl) -4 ′-(2 A yellow powder (1.72 g, 99% yield) of -pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-3) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.30-7.34 (m, 1H), 7.57-7.65 (m, 4H), 7.70 (dd, J = 8. 1, 7.1 Hz, 1H), 7.82-7.87 (m, 2H), 7.95 (d, J = 8.0 Hz, 1H), 8.03 (d, J = 8.4 Hz, 2H) ), 8.06 (d, J = 7.6 Hz, 1H), 8.09 (s, 1H), 8.09 (d, J = 9.2 Hz, 1H), 8.16 (d, J = 3) .1H, 2H), 8.18-8.23 (m, 4H), 8.25 (d, J = 7.7 Hz, 1H), 8.33 (d, J = 7.9 Hz, 1H), 8 .37 (d, J = 9.2 Hz, 1H), 8.40 (d, J = 8.0 Hz, 2H), 8.74 (d, J = 7.5 Hz, 1H), 8.78 (d, J = 4.8 Hz, 1H), 9.07 s, 1H), 9,22 (s, 1H).

Example 5

Under an argon stream, compound B-3 (1.32 g), 3-fluorantheneboronic acid (738 mg), palladium acetate (11.2 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-tri Isopropyl biphenyl (47.7 mg) was added to THF (50 mL), 3M-potassium carbonate aqueous solution (5.0 mL) was further added, and the mixture was heated to reflux for 6 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid was recrystallized from xylene to give the desired 2- [5- (3-fluoranthenyl) -4 '-(2-pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3 , 2-d] pyrimidine (C-4) as a yellow powder (yield 1.31 g, yield 76%).
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.28-7.31 (m, 1H), 7.43-7.46 (m, 2H), 7.61-7.73 (m, 6H), 7.80-7.85 (m, 2H), 7.87 (d, J = 7.1 Hz, 1H), 7.95-8.01 (m, 3H), 8.01 (d, J = 8.4 Hz, 2H), 8.03 (d, J = 6.8 Hz, 1H), 8.06 (s, 1H), 8.10 (d, J = 7.1 Hz, 1H), 8. 12 (d, J = 8.4 Hz, 1H), 8.20 (d, J = 8.4 Hz, 2H), 8.41 (d, J = 8.1 Hz, 2H), 8.75-8.78 (M, 2H), 9.04 (s, 1H), 9.18 (s, 1H).

Example 6

Compound B-1 (1.32 g), 3- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) carbazole (897 mg), and tetrakistriphenylphosphine under an argon stream Palladium (40.9 mg) was added to THF (29 mL), 3M-potassium carbonate aqueous solution (6.1 mL) was added, and the mixture was heated to reflux for 24 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. This gray solid was recrystallized from xylene to give 2- [3-chloro-5- (carbazol-3-yl) phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-4). A brown powder (yield 1.44 mg, yield 92%) was obtained.
¹ H-NMR (DMSO-d ₆ ), δ (ppm): 7.22 (t, J = 7.1 Hz, 1H), 7.44 (t, J = 7.6 Hz, 1H), 7.54 ( d, J = 8.1 Hz, 1H), 7.66 (d, J = 8.4 Hz, 1H), 7.70-7.78 (m, 4H), 7.84-7.90 (m, 2H) ), 8.05 (s, 1H), 8.28 (d, J = 8.0 Hz, 1H), 8.32 (d, J = 7.8 Hz, 1H), 8.37 (d, J = 8) 0.0 Hz, 2H), 8.62 (s, 1H), 8.66 (s, 1H), 8.79 (d, J = 7.8 Hz, 1H), 8.98 (s, 1H), 11. 44 (s, 1H).

Under an argon stream, compound B-4 (1.44 g), 4- (2-pyridyl) phenylboronic acid (640 mg), palladium acetate (12.0 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6 '-Triisopropylbiphenyl (76.6 mg) was added to THF (27 mL), 3M-potassium carbonate aqueous solution (2.1 mL) was further added, and the mixture was heated to reflux for 17 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a gray solid. The gray solid is purified by silica gel column chromatography (developing solvent: mixed solvent of toluene: chloroform = 50: 50 (volume ratio)) to give the desired 2- [5- (carbazol-3-yl) -4′- A yellow powder (yield 1.71 g, 97%) of (2-pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-5) was obtained.
¹ H-NMR (DMSO-d ₆ ), δ (ppm): 7.22 (t, J = 7.4 Hz, 1H), 7.41 (dd, J = 7.4, 4.8 Hz, 1H), 7.44 (t, J = 7.6 Hz, 1H), 7.55 (d, J = 8.1 Hz, 1H), 7.68 (d, J = 8.4 Hz, 1H), 7.70-7 .79 (m, 4H), 7.86 (t, J = 7.6 Hz, 1H), 7.93-7.99 (m, 2H), 8.08-8.12 (m, 3H), 8 .27-8.35 (m, 5H), 8.39 (d, J = 8.0 Hz, 2H), 8.73 (s, 1H), 8.74 (d, J = 4.8 Hz, 1H) , 8.81 (d, J = 7.8 Hz, 1H), 8.98 (s, 1H), 9.05 (s, 1H), 11.42 (s, 1H).

Under an argon stream, compound B-5 (1.71 g), 2-bromopyridine (493 mg), copper (I) oxide (18.6 mg), 1,10-phenanthroline (46.9 mg), potassium carbonate (719 mg), And 18-crown-6-ether (137 mg) was added to xylene and heated to reflux for 17 hours. The reaction product was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a brown solid. The obtained solid was recrystallized from xylene to give the desired 2- [5- [9- (2-pyridyl) carbazol-3-yl] -4 '-(2-pyridyl) biphenyl-3-yl] -4 A white powder (yield 1.34 g, 70% yield) of -phenyl [1] benzothieno [3,2-d] pyrimidine (C-5) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.28-7.31 (m, 1H), 7.36-7.41 (m, 2H), 7.51 (t, J = 7.7 Hz) , 1H), 7.61-7.68 (m, 4H), 7.70-7.76 (m, 2H), 7, 82 (t, J = 7.6 Hz, 1H), 7.87 (d , J = 7.8 Hz, 1H), 7.92-8.04 (m, 7H), 8.17 (s, 1H), 8.22 (d, J = 8.3 Hz, 2H), 8.28. (D, J = 7.7 Hz, 1H), 8.85 (d, J = 8.2 Hz, 2H), 8.57 (s, 1H), 8.77-8.81 (m, 2H), 8 .82 (d, J = 8.4 Hz, 1H), 9.09 (s, 1H), 9.14 (s, 1H).

Example 7

Under a stream of argon, Compound A-1 (1.52 g) and 5-bromo-2-chlorobenzonitrile (1.95 g) were dissolved in THF (12 mL), and potassium tert-butoxide (741 mg) in THF was dissolved therein. A turbid liquid (18 mL) was added dropwise and then stirred at 30 ° C. for 16 hours. Water and methanol were then added to the reaction mixture. The precipitated solid is washed with water, washed with methanol, and further washed with hexane to give the desired 2- (5-bromo-2-chlorophenyl) -4-phenyl [1] benzothieno [3,2-d] pyrimidine A yellowish white solid (yield 2.00 g, yield 74%) of (B-6) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.47 (d, J = 8.5 Hz, 1H), 8.56 (dd, J = 8.5, 2.4 Hz, 1H), 7.59 −7.68 (m, 4H), 7.74 (dd, J = 8.0, 7.6 Hz, 1H), 7.79 (d, J = 8.0 Hz, 1H), 8.21 (d, J = 2.4 Hz, 1H), 8.36 (d, J = 8.1 Hz, 2H), 8.71 (d, J = 8.0 Hz, 1H).

Example 8

Under an argon stream, compound B-6 (1.75 g), 4- (2-pyridyl) phenylboronic acid (1.85 g), palladium acetate (17.4 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′ , 6'-Triisopropylbiphenyl (73.8 mg) was added to THF (39 mL), 3M aqueous potassium carbonate solution (6.2 mL) was added thereto, and then the mixture was heated to reflux for 16 hours. After allowing the reaction mixture to cool, water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain the desired 2- [4,4 ″ -bis (2-pyridyl)-[1,1 ′: 4 ′, 1 ″. ] -Terphenyl-5'-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-6) was obtained as a brown solid (yield 2.40 g, yield 96%).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.23 (dd, J = 6.6, 4.7 Hz, 1H), 7.26-7.29 (m, 1H), 7.36-7 .44 (m, 3H), 7.50 (d, J = 8.4 Hz, 2H), 7.57 (t, J = 7.5 Hz, 1H), 7.66-7.84 (m, 8H) , 7.88-7.94 (m, 4H), 8.00 (d, J = 6.6 Hz, 2H), 8.17 (d, J = 8.4 Hz, 2H), 8.57 (d, J = 1.9 Hz, 1H), 8.57 (d, J = 7.5 Hz, 1H), 8.71 (d, J = 4.7 Hz, 1H), 8.76 (d, J = 4.7 Hz) , 1H).

Example 9

Under a stream of argon, 3′-bromoacetophenone (1.39 mL) and 3-chloro-1,2-benzisothiazole (1.70 g) were added to DMF (5.0 mL), and potassium tert-butoxide (1 .68 g) of DMF suspension (15.0 mL) was added dropwise and then stirred at 100 ° C. for 4 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water and further washed with hexane. The obtained solid was purified by silica gel column chromatography (developing solvent: chloroform) to give the desired 3-amino-2- (3′-bromobenzoyl) benzo [b] thiophene (A-2) yellow powder (yield) 3.04 g, yield 91%) was obtained.
¹ H-NMR (DMSO-d ₆ ) δ (ppm): 7.38 (dd, J = 8.1, 7.1 Hz, 1H), 7.53 (t, J = 7.8 Hz, 1H), 7 .59 (dd, J = 8.0, 7.1 Hz, 1H), 7.78-7.81 (m, 2H), 7.87 (d, J = 8.1 Hz, 1H), 7.92 ( s, 1H), 8.29 (d, J = 8.0 Hz, 1H), 8.41 (s, 2H).

Under a stream of argon, Compound A-2 (3.02 g), 3-bromobenzonitrile (2.48 g), and sodium sulfate (3.87 g) were added to DMF (18 mL), and potassium tert-butoxide (1. 12 g) of DMF suspension (27 mL) was added dropwise and then stirred at 30 ° C. for 21 hours. Methanol was then added to the reaction mixture. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to obtain a light brown solid. By recrystallizing this from o-xylene, the desired 2- (3-bromophenyl) -4- (3-bromophenyl) [1] benzothieno [3,2-d] pyrimidine (B-7) light brown A powder (yield 3.68 g, yield 82%) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.46 (t, J = 7.9 Hz, 1H), 7.54 (t, J = 7.9 Hz, 1H), 7.64-7.69 (M, 2H), 7.72-7.77 (m, 2H), 7.97 (d, J = 8.0 Hz, 1H), 8.29 (d, J = 7.8 Hz, 1H), 8 .50 (s, 1H), 8.72 (d, J = 7.8 Hz, 1H), 8.75 (d, J = 7.9 Hz, 1H), 8.92 (s, 1H).

Example 10

Under a stream of argon, Compound B-7 (1.99 g), 4- (2-pyridyl) phenylboronic acid (1.91 g), and bis (triphenylphosphino) palladium dichloride (56 mg) were added to THF (40 mL). In addition, 3M aqueous potassium carbonate solution (6.4 mL) was added thereto, and then the mixture was heated to reflux for 16 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to give the desired 2- [4 '-(2-pyridyl) biphenyl-3-yl] -4- [4'-(2-pyridyl) ) Biphenyl-3-yl] [1] benzothieno [3,2-d] pyrimidine (C-7) as a brown solid (yield 2.05 g, yield 80%).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.29-7.32 (m, 2H), 7.66 (dd, J = 7.9, 7.1 Hz, 1H), 7.68 (t , J = 7.7 Hz, 1H), 7.73 (dd, J = 8.0, 7.1 Hz, 1H), 7.77 (t, J = 7.8 Hz, 1H), 7.80-7. 87 (m, 5H), 7.90-7.92 (m, 1H), 7.91 (d, J = 8.5 Hz, 2H), 7.94 (d, J = 8.5 Hz, 2H), 7.9 (d, J = 7.9 Hz, 1H), 8.19 (d, J = 8.5 Hz, 2H), 8.20 (d, J = 8.5 Hz, 2H), 8.41 (d , J = 7.8 Hz, 1H), 8.71 (s, 1H), 8.75-8.80 (m, 3H), 8.82 (d, J = 7.9 Hz, 1H), 9.13. (S, 1H).

Example 11

Under a stream of argon, Compound A-1 (253 mg), 3′-cyano-4- (2-pyridyl) biphenyl (103 mg), and sodium sulfate (426 mg) were added to THF (2 mL), and potassium tert-butoxide ( 123 mg) in THF (3.0 mL) was added dropwise and then stirred at 30 ° C. Thereafter, 3'-cyano-4- (2-pyridyl) biphenyl (103 mg, total 309 mg) was added in three portions every hour, and then stirred for 21 hours. Then, it heated and refluxed for 21 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid is washed with water, washed with methanol, and further washed with hexane to give the desired 2- [4 '-(2-pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3] , 2-d] pyrimidine (C-8) was obtained as a white solid (58 mg, 12% yield).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.40-7.43 (m, 1H), 7.61-7.75 (m, 6H), 7.83 (d, J = 8.2 Hz) , 1H), 7.92-7.98 (m, 5H), 8.23 (d, J = 8.2 Hz, 2H), 8.41 (d, J = 8.2 Hz, 2H), 8.78 (D, J = 7.8 Hz, 1H), 8.81-8.84 (m, 2H), 9.10 (s, 1H).

Example 12

Under a stream of argon, Compound A-1 (1.01 g), 4-bromobenzonitrile (801 mg), and sodium sulfate (1.70 g) were added to THF (8.0 mL), and potassium tert-butoxide (494 mg) was added thereto. Of THF (12.0 mL) was added dropwise and then stirred at 30 ° C. for 17 hours. Subsequently, 4-bromobenzonitrile (364 mg) was added, and the mixture was further heated to reflux for 2 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to give the desired 2- (4-bromophenyl) -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B- 8) was obtained as a pale yellow solid (yield 684 mg, yield 41%).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.61-7.75 (m, 5H), 7.71 (d, J = 8.7 Hz, 2H), 7.97 (d, J = 8 0.0 Hz, 1H), 8.38 (d, J = 8.1 Hz, 2H), 8.68 (d, J = 8.7 Hz, 2H), 8.75 (d, J = 7.8 Hz, 1H) .

Example 13

Under an argon stream, Compound B-8 (682 mg), bis (4-biphenylyl) amine (576 mg), potassium carbonate (496 mg), and 18-crown-6-ether (86.2 mg) were added to xylene (6.6 mL). In addition, it was heated to 100 ° C. Next, a mixture of palladium acetate (7.3 mg) and tri (tert-butyl) phosphine in 1M-toluene (98 μL) added to xylene (1.6 mL) was added to the solution heated to 100 ° C. as described above. Subsequently, it heated and refluxed for 17 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane, and the desired 2- [4-bis (4-biphenylyl) aminophenyl] -4-phenyl [1] benzothieno [3,2-d A gray solid (yield 901 mg, 84% yield) of pyrimidine (C-9) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.31-7.38 (m, 8H), 7.45-7.49 (m, 4H), 7.59 (d, J = 8.6 Hz) 4H), 7.61-7.68 (m, 8H), 7.72 (t, J = 7.8 Hz, 1H), 7.96 (d, J = 8.0 Hz, 1H), 8.39. (D, J = 8.0 Hz, 2H), 8.70 (d, J = 8.7 Hz, 2H), 8.77-8.78 (m, 1).

Example 14

Under a stream of argon, Compound A-1 (1.01 g), 3,5-dibromobenzonitrile (1.15 g), and sodium sulfate (1.70 g) were added to THF (8.0 mL), and potassium tert- A suspension of butoxide (494 mg) in THF (12 mL) was added dropwise and then stirred at 30 ° C. for 17 hours. Subsequently, 3,5-dibromobenzonitrile (522 mg) was added, and the mixture was further heated to reflux for 5 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to give the desired 2- (3,5-dibromophenyl) -4-phenyl [1] benzothieno [3,2-d] pyrimidine ( B-9) was obtained as a white solid (yield 1.36 g, yield 69%).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.64-7.70 (m, 4H), 7.73 (dd, J = 8.0, 7.1 Hz, 1H), 7.82 (s , 1H), 7.96 (d, J = 8.0 Hz, 1H), 8.36 (d, J = 8.1 Hz, 2H), 8.73 (d.J = 7.9 Hz, 1H), 8 .87 (s, 2H).

Example 15

Under an argon stream, compound B-9 (496 mg), 9-phenanthreneboronic acid (533 mg), and tetrakis (triphenylphosphine) palladium (23.1 mg) were added to THF (20 mL), and 3M aqueous potassium carbonate solution was added thereto. (1.6 mL) was added and then heated to reflux for 19 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane, and the desired 2- [3,5-di (9-phenanthryl) phenyl] -4-phenyl [1] benzothieno [3,2- d] A brown solid (yield 647 g, yield 94%) of pyrimidine (C-10) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.54-7.75 (m, 13H), 7.92 (s, 1H), 7.95 (d, J = 8.0 Hz, 1H), 7.9 (s, 2H), 8.00 (d, J = 8.0 Hz, 2H), 8.23 (d, J = 8.0 Hz, 2H), 8.38 (d, J = 7.9 Hz) , 2H), 8.70 (d, J = 7.7 Hz, 1H), 8.79 (d, J = 8.3 Hz, 2H), 8.85 (d, J = 8.0 Hz, 2H), 9 .07 (s, 2H).

Example 16

Under an argon stream, Compound B-1 (2.45 g), phenylboronic acid (727 mg), and bis (triphenylphosphine) palladium dichloride (38.0 mg) were added to THF (22 mL), and 3M aqueous potassium carbonate solution ( 4.0 mL) was added and then heated to reflux for 24 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water, washed with methanol, and further washed with hexane to give the desired 2- [5-chlorobiphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine. A brown powder (Yield 2.33 g, Yield 96%) of (B-10) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.45 (t, J = 7.4 Hz, 1H), 7.54 (t, J = 7.5 Hz, 2H), 7.61-7. 77 (m, 8H), 7.96 (d, J = 8.0 Hz, 1H), 8.38 (d, J = 8.1 Hz, 2H), 8.74-8.76 (m, 2H), 8.90 (s, 1H).

Under an argon stream, Compound B-10 (2.30 g), bispinacolatodiboron (1.43 g), tris (dibenzylideneacetone) dipalladium (141 mg), 2-dicyclohexylphosphino-2 ′, 4 ′, 6 '-Triisopropylbiphenyl (220 mg) and potassium acetate (1.11 g) were added to 1,4-dioxane (25.6 mL), and the mixture was heated to reflux for 19 hours. The reaction mixture was allowed to cool, and the insoluble material was filtered off. The filtrate was purified by silica gel column chromatography (developing solvent; chloroform) to give the desired 2- [5- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) biphenyl- A white powder (yield 2.25 g, yield 81%) of 3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-11) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 1.45 (s, 12H), 7.42 (t, J = 7.4 Hz, 1H), 7.53 (t, J = 7.4 Hz, 2H), 7.61-7.70 (m, 4H), 7.72 (dd, J = 7.9, 7.1 Hz, 1H), 7.83 (d, J = 8.2 Hz, 2H), 7.97 (d, J = 7.9 Hz, 1H), 8.23 (s, 1H), 8.41 (d, J = 8.2 Hz, 2H), 8.83 (d, J = 7.8 Hz) , 1H), 9.13 (s, 1H), 9.16 (s, 1H).

Under an argon stream, Compound B-11 (1.20 g), 3-bromo-6,9-di (2-pyridyl) carbazole (978 mg), bis (triphenylphosphine) palladium dichloride (31.2 mg) were added in THF (22 mL). 3M-potassium carbonate aqueous solution (1.5 mL) was added, and then heated to reflux for 22 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The organic layer was extracted, the solvent was distilled off under reduced pressure, and methanol was added to precipitate a white brown solid. By filtering this white brown solid, the desired 2- [5- [6,9-di (2-pyridyl) carbazol-3-yl] biphenyl-3-yl] -4-phenyl [1] benzothieno [1] A brown powder of 3.2-d] pyrimidine (C-11) was obtained (yield 1.14 g, yield 70%).
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.26 (dd, J = 7.4, 4.9 Hz, 1H), 7.39 (dd, J = 7.4, 4.9 Hz, 1H) ), 7.47 (t, J = 7.4 Hz, 1H), 7.56-7.74 (m, 7H), 7.76 (d, J = 8.1 Hz, 1H), 7.82 (d , J = 7.5 Hz, 1H), 7.90-8.04 (m, 8H), 8.12 (s, 1H), 8.18 (d, J = 8.7 Hz, 1H), 8.43 (D, J = 8.2 Hz, 2H), 8.65 (s, 1H), 8.76 (d, J = 4.9 Hz, 1H), 8.80-8.83 (m, 2H), 8 .93 (s, 1H), 9.03 (s, 1H), 9.13 (s, 1H).

Example 17

Compound B-2 (1.00 g), 3-pyridylboronic acid (291 mg), palladium acetate (8.2 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl under an argon stream (34.7 mg) was added to THF (18 mL), 3M-potassium carbonate aqueous solution (2.4 mL) was further added, and the mixture was heated to reflux for 24 hours. Thereafter, palladium acetate (8.2 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl (34.7 mg) in THF (5 mL) were added to the reaction mixture, then for 24 hours. Heated to reflux. The reaction mixture was allowed to cool to room temperature, and water was added. After THF was distilled off under reduced pressure, methanol was added to precipitate a white brown solid. By filtering this white brown solid, the desired 2- [5- (9-phenanthryl) -3- (3-pyridyl) phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine ( C-12) was obtained as a white brown powder (yield 1.08 g, yield 100%).
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.47 (t, J = 7.9, 4.8 Hz, 1H), 7.58-7.76 (m, 9H), 7.91 ( s, 1H), 7.93 (s, 1H), 7.96 (d, J = 8.0 Hz, 1H), 7.99 (d, J = 7.9 Hz, 1H), 8.07 (d, J = 8.3 Hz, 1H), 8.15 (d, J = 7.9 Hz, 1H), 8.38 (d, J = 8.1 Hz, 2H), 8.68 (d, J = 4.8 Hz) , 1H), 8.73 (d, J = 7.9 Hz, 1H), 8.80 (d, J = 8.1 Hz, 1H), 8.85 (d, J = 8.2 Hz, 1H), 9 .02 (s, 1H), 9.13 (s, 1H), 9.14 (s, 1H).

Example 18

Under a stream of argon, Compound B-1 (500 mg), 4-diphenylboronic acid (482 mg), palladium acetate (5.0 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl (21. 0 mg) was suspended in a mixed solvent of toluene (30.0 mL) and 1-butanol (7 mL), 3M-potassium carbonate aqueous solution (0.74 mL) was further added, and the mixture was heated and stirred at 100 ° C. for 21 hours. The reaction mixture was allowed to cool, methanol was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with a mixed solvent of 180 mL of toluene and 80 mL of methanol to obtain the desired 4-phenyl-2- (1,1 ′: 4 ′, 1 ″: 3 ″, 1 ″ ″: 4 ″ ″, 1 ″ ″ ′-kinquephenyl-5 ″ -yl)-[1] benzothieno [3,2-d] pyrimidine (C-13) white A powder (yield 706 mg, yield 99%) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.39 (t, J = 7.6 Hz, 2H), 7.50 (t, J = 7.7 Hz, 4H), 7.61-7.74 (M, 9H), 7.78 (d, J = 8.3 Hz, 4H), 7.93 (d, J = 8.3 Hz, 4H), 7.96 (d, J = 8.0 Hz, 1H) , 8.06 (s, 1H), 8.41 (d, J = 6.8 Hz, 2H), 8.79 (d, J = 8.0 Hz, 1H), 9.06 (d, J = 1. 5Hz, 2H).

Example 19

Under a stream of argon, Compound B-1 (500 mg), 9-anthraceneboronic acid (270 mg), palladium acetate (5.0 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl (21. 0 mg) was suspended in 1,4-dioxane (11.0 mL), 3M-potassium carbonate aqueous solution (0.74 mL) was further added, and the mixture was heated and stirred at 80 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and further recrystallized with 38 mL of toluene to obtain the desired 2- [3- (9-anthracyl) -5-chlorophenyl] -4-phenyl [1] benzothieno [ A white powder (yield 584 mg, yield 96%) of 3,2-d] pyrimidine (B-12) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.40 (t, J = 7.8 Hz, 2H), 7.50 (t, J = 7.0 Hz, 2H), 5.53-7.61 (M, 5H), 7.67 (t, J = 7.2 Hz, 1H), 7.76 (d, J = 9.2 Hz, 2H), 7.91 (d, J = 8.5 Hz, 1H) , 8.08 (d, J = 8.3 Hz, 2H), 8.32 (d, J = 8.2 Hz, 2H), 8.56 (s, 1H), 8.64 (d, J = 7. 8 Hz, 1H), 8.76 (s, 1H), 8.95 (s, 1H).

Under a stream of argon, Compound B-12 (536 mg), 4- (2-pyridyl) phenylboronic acid (233 mg), palladium acetate (4.4 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-tri Isopropylbiphenyl (18.6 mg) was suspended in 1,4-dioxane (10.0 mL), 3M-potassium carbonate aqueous solution (0.65 mL) was further added, and the mixture was heated and stirred at 80 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and further recrystallized with a mixed solvent of 180 mL of toluene and 80 mL of methanol to obtain the desired 2- [5- (9-anthracyl) -4 ′-(2-pyridyl). ) Biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-14) was obtained as a white powder (yield 578 mg, 89%).
¹ H-NMR (DMSO-d ₆ ) δ (ppm): 7.39 (dd, J = 7.9 Hz, 4.5 Hz, 1H), 7.50 (t, J = 7.6 Hz, 2H), 7 .59 (t, J = 7.0 Hz, 2H), 7.63-7.72 (m, 4H), 7.76 (d, J = 8.5 Hz, 2H), 7.83 (t, J = 7.2 Hz, 1H), 7.92 (t, J = 7.9 Hz, 1H), 8.02 (s, 1H), 8.06 (d, J = 7.3 Hz, 1H), 8.08 ( d, J = 8.6 Hz, 2H), 8.22-8.33 (m, 7H), 8.68-8.72 (m, 3H), 8.80 (s, 1H), 9.28 ( s, 1H).

Example 20

Under an argon stream, compound B-3 (450 mg), 4-diphenylboronic acid (203 mg), palladium acetate (3.8 mg) and 2-dicyclohexylphosphino-2 ', 4', 6'-triisopropylbiphenyl (16. 3 mg) was suspended in a mixed solvent of toluene (23.0 mL) and 1-butanol (5 mL), 3M-potassium carbonate aqueous solution (0.57 mL) was added, and the mixture was heated and stirred at 100 ° C. for 16 hours. The reaction mixture was allowed to cool, methanol was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol, and hexane, and further recrystallized with a mixed solvent of 80 mL of toluene and 100 mL of methanol to obtain the desired 4-phenyl-2- [4- (2-pyridyl) -1, 1 ′: 3 ′, 1 ″: 4 ″, 1 ″ ″-quaterphenyl-5′-yl] [1] benzothieno [3,2-d] pyrimidine (C-15) white powder (yield 398 mg, 72% yield).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.26-7.29 (m, 1H), 7.40 (t, J = 7.0 Hz, 1H), 7.49 (t, J = 7 .8 Hz, 2H), 7.61-7.74 (m, 7H), 8.78-7.86 (m, 4H), 7.93 (d, J = 8.2 Hz, 2H), 7.96 (D, J = 8.2 Hz, 3H), 8.07 (s, 1H), 8.19 (d, J = 8.2 Hz, 2H), 8.41 (d, J = 8.1 Hz, 2H) , 8.75 (d, J = 4.7 Hz, 1H), 8.79 (d, J = 7.3 Hz, 1H), 9.07 (s, 2H).

Example 21

Under an argon stream, compound B-3 (470 mg), bispinacolatodiboron (295 mg), tris (dibenzylideneacetone) dipalladium (16.0 mg), 2-dicyclohexylphosphino-2 ', 4', 6'- Triisopropylbiphenyl (17.0 mg) and potassium acetate (175 mg) were suspended in 1,4-dioxane (30.0 mL), and the mixture was heated and stirred at 80 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was purified by silica gel chromatography (developing solvent: chloroform) to give the desired 2- [5- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) -4 '-(2-pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-13) as a white powder (241 mg, 44% yield) It was.
¹ H-NMR (CDCl ₃ ) δ (ppm): 1.44 (s, 12H), 7.60-7.68 (m, 5H), 7.71 (t, J = 7.2 Hz, 1H), 7.78-7.84 (m, 2H), 7.92-7.96 (m, 3H), 8.14 (d, J = 8.3 Hz, 2H), 8.26 (s, 1H), 8.40 (d, J = 7.0 Hz, 2H), 8.74 (d, J = 5.9 Hz, 1H), 8.81 (d, J = 7.0 Hz, 1H), 9.16 (dd , J = 2.0 Hz, 1.9 Hz, 2H).

Under an argon stream, compound B-13 (240 mg), 5-bromo-2,2′-bipyridine (110 mg), palladium acetate (1.8 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-tri Isopropylbiphenyl (7.4 mg) was suspended in 1,4-dioxane (13.0 mL), 3M-potassium carbonate aqueous solution (0.26 mL) was further added, and the mixture was heated and stirred at 100 ° C. for 24 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and further recrystallized with 15 mL of toluene to obtain the desired 2- [5- (2,2′-bipyridin-5-yl) -4 ′-(2- A white powder (yield 170 mg, 68%) of pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-16) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.26-7.29 (m, 1H), 7.35 (t, J = 6.4 Hz, 1H), 7.62-7.74 (m , 5H), 7.79-7.89 (m, 3H), 7.96 (d, J = 8.0 Hz, 3H), 8.07 (s, 1H), 8.20 (d, J = 8 .3 Hz, 2H), 8.28 (dd, J = 8.0 Hz, 2.0 Hz, 1H), 8.41 (d, J = 7.3 Hz, 2H), 8.51 (d, J = 8. 0 Hz, 1H), 8.58 (d, J = 8.3 Hz, 1H), 8.75 (t, J = 4.8 Hz, 2H), 8.79 (d, J = 8.0 Hz, 1H), 9.10 (s, 1H), 9.14 (s, 1H), 9.19 (s, 1H).

Example 22

Under an argon stream, 4-acetylbiphenyl (2.00 g) and 3-chloro-1,2-benzisothiazole (2.43 g) were added to DMF (4.0 mL), and potassium tert-butoxide in DMF solution ( 1.98 g / 20.0 mL) was added dropwise, and then heated and stirred at 100 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water and purified by silica gel chromatography (developing solvent: chloroform) to obtain the desired 3-amino-2- (4-phenylbenzoyl) benzo [b] thiophene (A-3). A yellow powder (yield 1.23 g, yield 32%) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.03 (s, 2H), 7.38-7.43 (m, 2H), 7.47-7.54 (m, 3H), 7. 66 (d, J = 7.4 Hz, 2H), 7.70-7.76 (m, 4H), 7.99 (d, J = 8.2 Hz, 2H).

Under a stream of argon, compound A-3 (1.23 g), 3-bromo-5-chlorobenzonitrile (889 mg) and sodium sulfate (1.59 g) were added to THF (3.0 mL), and potassium tert-butoxide was added thereto. In THF (461 mg / 16.0 mL) was added dropwise, and then the mixture was stirred with heating at 30 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with methanol to obtain the desired 2- (3-bromo-5-chlorophenyl) -4- (4-biphenyl)-[1] benzothieno [3,2-d] pyrimidine (B-14). A pale yellow powder (yield 1.13 g, 57% yield) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.43 (t, J = 7.4 Hz, 1H), 7.50 (t, J = 7.5 Hz, 2H), 7.64-7.66 (M, 2H), 7.72 (d, J = 7.7 Hz, 2H), 7.73 (t, J = 8.1 Hz, 1H), 7.88 (d, J = 8.5 Hz, 2H) 7.97 (d, J = 8.2 Hz, 1H), 8.45 (d, J = 8.5 Hz, 2H), 8.73 (s, 1H), 8.74 (d, J = 8. 2 Hz, 1H), 8.84 (s, 1H).

Example 23

Under an argon stream, compound B-14 (700 mg), 4- (2-pyridyl) phenylboronic acid (581 mg), palladium acetate (18.0 mg) and 2-dicyclohexylphosphino-2 ', 4', 6'-tri Isopropyl biphenyl (76.0 mg) was suspended in 1,4-dioxane (44.0 mL), 3M-potassium carbonate aqueous solution (0.89 mL) was further added, and the mixture was heated and stirred at 100 ° C. for 5 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and further recrystallized with 100 mL of toluene to obtain the desired 4- (4-biphenyl) -2- [4,4 ″ -di (2-pyridyl)- 1,1 ′: 3 ′, 1 ″ -terphenyl-5′-yl] [1] benzothieno [3,2-d] pyrimidine (C-17) white powder (yield 950 mg, yield 99%) Obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.28 (d, J = 7.2 Hz, 2H), 7.43 (t, J = 7.4 Hz, 1H), 7.52 (t, J = 7.53 Hz, 2H), 7.65 (t, J = 6.9 Hz, 1H), 7.72 (t, J = 8.5 Hz, 1H), 7.73 (d, J = 7.5 Hz, 2H), 7.78-7.86 (m, 4H), 7.89 (d, J = 8.5 Hz, 2H), 7.97 (d, J = 8.4 Hz, 5H), 8.08 ( s, 1H), 8.19 (d, J = 8.4 Hz, 4H), 8.51 (d, J = 8.5 Hz, 2H) 8.75 (d, J = 5.0 Hz, 2H) 79 (d, J = 7.7 Hz, 1H), 9.10 (d, J = 1.8 Hz, 2H).

Example 24

Under an argon stream, 2-acetonaphthalene (2.00 g) and 3-chloro-1,2-benzisothiazole (2.11 g) were added to DMF (4.0 mL), and potassium tert-butoxide in DMF was added thereto. (1.98 g / 20.0 mL) was added dropwise, and then the mixture was heated and stirred at 100 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water and purified by silica gel chromatography (developing solvent: chloroform) to give the desired 3-amino-2- (2-naphthoyl) benzo [b] thiophene (A-4) yellow A powder (yield 1.51 g, yield 42%) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.05 (s, 2H), 7.42 (t, J = 7.6 Hz, 1H), 7.50 (t, J = 7.6 Hz, 1H) ), 7.56-7.61 (m, 2H), 7.72 (d, J = 8.1 Hz, 1H), 7.76 (d, J = 8.1 Hz, 1H), 7.91 (d , J = 6.8 Hz, 1H), 7.95-7.99 (m, 3H), 8.47 (s, 1H).

Under a stream of argon, Compound A-4 (1.51 g), 3-bromo-5-chlorobenzonitrile (1.19 g) and sodium sulfate (2.12 g) were added to THF (5.0 mL), and potassium tert. -A solution of butoxide in THF (614 mg / 25.0 mL) was added dropwise, and the mixture was stirred with heating at 30 ° C for 16 hr. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with methanol to obtain a thin film of the desired 2- (3-bromo-5-chlorophenyl) -4- (2-naphthyl) [1] benzothieno [3,2-d] pyrimidine (B-15). A yellow powder (yield 1.74 g, 69% yield) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.62-7.64 (m, 2H), 7.66-7.68 (m, 2H), 7.73 (t, J = 7.6 Hz) , 1H), 7.97 (d, J = 8.1 Hz, 2H), 8.08-8.12 (m, 2H), 8.46 (dd, J = 8.5 Hz, 2.3 Hz, 1H) , 8.74-8.76 (m, 2H), 8.82 (s, 1H), 8.85 (t, J = 1.8 Hz, 1H).

Example 25

Under an argon stream, compound B-15 (500 mg), 4- (2-pyridyl) phenylboronic acid (436 mg), palladium acetate (11.0 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-tri Isopropylbiphenyl (47.5 mg) was suspended in 1,4-dioxane (33.0 mL), 3M-potassium carbonate aqueous solution (0.66 mL) was further added, and the mixture was heated and stirred at 100 ° C. for 16 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and further recrystallized with 100 mL of toluene to obtain the desired 4- (2-naphthyl) -2- [4,4 ″ -di (2-pyridyl)- 1,1 ′: 3 ′, 1 ″ -terphenyl-5′-yl] [1] benzothieno [3,2-d] pyrimidine (C-18) as a white powder (yield 530 mg, 77%) Obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.27 (d, J = 7.2 Hz, 2H), 7.61-7.68 (m, 3H), 7.71 (t, J = 7 .9 Hz, 1H), 7.78-7.86 (m, 4H), 7.97 (d, J = 8.4 Hz, 6H), 8.07-8.12 (m, 3H), 8.19 (D, J = 8.4 Hz, 4H), 8.54 (dd, J = 8.4 Hz, 2.0 Hz, 1H), 8.76 (d, J = 5.1 Hz, 2H), 8.80 ( d, J = 7.6 Hz, 1H), 8.88 (s, 1H), 9.11 (d, J = 1.5 Hz, 2H).

Example 26

Under an argon stream, 8-acetylquinoline (1.90 g) and 3-chloro-1,2-benzisothiazole (1.79 g) were added to DMF (6.5 mL), and potassium tert-butoxide (1. 43 g) of DMF suspension (20.0 mL) was added dropwise and then stirred at 80 ° C. for 17 hours. The reaction mixture was allowed to cool to room temperature, and water was added. The precipitated solid was washed with water and then with hexane, and the desired 8-quinolyl- (3-aminobenzo [b] thiophen-2-yl) ketone (A-5) yellow powder (yield 2.00 g, yield) 62%).
¹ H-NMR (DMSO-d ₆ ), δ (ppm): 7.41 (dd, J = 8.0, 7.1 Hz, 1H), 7.50 (dd, J = 8.0, 7.1 Hz) , 1H), 7.59 (dd, J = 8.3, 4.2 Hz, 1H), 7.66 (d, J = 8.0 Hz, 1H), 7.71 (dd, J = 8.1). 7.1 Hz, 1H), 7.80 (d, J = 7.1 Hz, 1H), 8.13 (d, J = 8.1 Hz, 1H), 8.18 (s, 2H), 8.25 ( d, J = 8.0 Hz, 1H), 8.46 (d, J = 8.3 Hz, 1H), 8.85 (d, J = 4.2 Hz, 1H).

Under a stream of argon, Compound A-5 (1.98 g) and 3-bromo-5-chlorobenzonitrile (2.11 g) were added to THF (33 mL), and a solution of potassium tert-butoxide (802 mg) in THF (32 0.5 mL) was added dropwise and stirred at 30 ° C. for 27 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid is washed with water, washed with methanol, and further washed with hexane to give the desired 2- (3-bromo-5-chlorophenyl) -4- (8-quinolyl) [1] benzothieno [3,2 -D] A light brown powder (yield 1.60 g, 49% yield) of pyrimidine (B-16) was obtained.
¹ H-NMR (CDCl ₃ ), δ (ppm): 7.55 (dd, J = 8.3, 4.2 Hz, 1H), 7.61-7.70 (m, 3H), 7.80- 7.84 (m, 2H), 8.11 (d, J = 8.2 Hz, 1H), 8.15 (d, J = 7.1 Hz, 1H), 8.36 (d, J = 8.3 Hz) , 1H), 8.71 (s, 1H), 8.76 (d, J = 7.4 Hz, 1H), 8.82 (s, 1H), 8.95 (d, J = 5, 2 Hz, 1H) ).

Example 27

Under an argon stream, compound B-16 (1.01 g), 4- (2-pyridyl) phenylboronic acid (876 mg), palladium acetate (9.0 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6 '-Triisopropylbiphenyl (57.2 mg) was suspended in THF (40.0 mL), 3M-potassium carbonate aqueous solution (2.9 mL) was further added, and the mixture was heated to reflux for 60 hours. The reaction mixture was allowed to cool, water and methanol were added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with toluene to obtain the desired 2- [4,4 ″ -di (2-pyridyl) -1,1 ′: 3 ′, 1 ""-Terphenyl-5'-yl] -4- (8-quinolyl) [1] benzothieno [3,2-d] pyrimidine (C-19) white powder (yield 1.00 g, yield 79%) Got.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.26-7.29 (m, 2H), 7.55 (dd, J = 8.3, 4.2 Hz, 1H), 7.63 (dd , J = 7.5, 7.2, 1H), 7.67 (dd, J = 7.5, 7.2, 1H), 7.78-7.85 (m, 6H), 7.97 ( d, J = 8.4 Hz, 4H), 8.08 (s, 1H), 8.11 (d, J = 8.2 Hz, 1H), 8.18 (d, J = 8.4 Hz, 4H), 8.23 (d, J = 7.1 Hz, 1H), 8.36 (d, J = 8.3 Hz, 1H), 8.76 (d, J = 4.7 Hz, 2H), 8.81 (d , J = 7.2 Hz, 1H), 8.99 (d, J = 4.2 Hz, 1H), 9.08 (s, 2H).

Example 28

Compound B-2 (1.50 mg), 4-biphenylboronic acid (650 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl under an argon stream (78.1 mg) was suspended in 1,4-dioxane (55.0 mL), 3M-potassium carbonate aqueous solution (1.82 mL) was further added, and the mixture was heated and stirred at 90 ° C. for 22 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 30 mL of toluene to obtain the desired 2- [5- (9-phenanthryl) -1,1 ′: 4 ′, 1 ″ -terphenyl. A white powder (yield 1.66 g, yield 91%) of -3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-20) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.38 (t, J = 7.4 Hz, 1H), 7.46-7.50 (m, 2H), 7.57-7.74 (m 11H), 7.77 (d, J = 8.4 Hz, 2H), 7, 92-7.9 (m, 6H), 8.10 (d, J = 8.3 Hz, 1H), 8.38. (D, J = 8.1 Hz, 2H), 8.73 (d, J = 7.8 Hz, 1H), 8.79 (d, J = 8.2 Hz, 1H), 8.84 (d, J = 8.1 Hz, 1H), 8.95 (s, 1H), 9.17 (s, 1H).

Example 29

Under an argon stream, compound B-2 (1.50 g), 4- (3-pyridyl) phenylboronic acid (652 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6 '-Triisopropylbiphenyl (78.1 mg) was suspended in 1,4-dioxane (55.0 mL), 3M-potassium carbonate aqueous solution (1.82 mL) was further added, and the mixture was heated and stirred at 90 ° C. for 24 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 50 mL of toluene to obtain the desired 2- [5- (9-phenanthryl) -4 ′-(3-pyridyl) biphenyl-3-yl]. A white powder (yield 1.32 g, yield 73%) of -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-21) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.57-7.75 (m, 10H), 7.77 (d, J = 8.4 Hz, 2H), 7.91 (s, 1H), 7.94-7.98 (m, 3H), 8.02 (d, J = 8.4 Hz, 2H), 8.07 (d, J = 8.2 Hz, 1H), 8.33 (d, J = 8.1 Hz, 1H), 8.37 (d, J = 8.0 Hz, 2H), 8.67 (d, J = 5.2 Hz, 1H), 8.72 (d, J = 7.7 Hz, 1H), 8.79 (d, J = 8.3 Hz, 1H), 8.85 (s, J = 8.2 Hz, 1H), 8.99 (s, 1H), 9.01 (s, 1H) , 9.16 (s, 1H).

Example 30

Under an argon stream, compound B-2 (10.0 g), bis (binacolato) diboron (5.95 g), tris (dibenzylideneacetone) bispalladium (286 mg), 2-dicyclohexylphosphino-2 ', 4', 6 '-Triisopropylbiphenyl (297 mg) and potassium acetate (3.06 g) were suspended in 1,4-dioxane (310 mL), and the mixture was heated and stirred at 80 ° C. for 24 hours. The reaction mixture was allowed to cool, and the solvent was evaporated under reduced pressure. The solid was dispersed in water and collected by filtration, and the obtained solid was washed with water, methanol, and hexane to obtain the desired 2- [3- (4,4,5,5-tetramethyl-1,3,2). -Dioxaborolan-2-yl) -5- (9-phenanthryl) phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-17) white powder (yield 11.7 g, yield 100) %).
¹ H-NMR (CDCl ₃ ) δ (ppm): 1.43 (s, 12H), 7.54-7.71 (m, 9H), 7.84 (s, 1H), 7.91-7. 95 (m, 2H), 7.9 (d, J = 8.3 Hz, 1H), 8.15 (s, 1H), 8.36 (d, J = 8.1 Hz, 2H), 8.73- 8.77 (m, 2H), 8.81 (d, J = 8.1 Hz, 1H), 9.03 (s, 1H), 9.25 (s, 1H).

Example 31

Under an argon stream, compound B-17 (1.75 g), 3-chloro-6-phenylpyridine (622 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ', 4', 6'- Triisopropylbiphenyl (78.1 mg) was suspended in 1,4-dioxane (55.0 mL), 3M-potassium carbonate aqueous solution (1.82 mL) was further added, and the mixture was heated and stirred at 95 ° C. for 24 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 30 mL of toluene to obtain the desired 2- [3- (9-phenanthryl) -5- (6-phenylpyridin-3-yl) phenyl]. A white powder (yield 1.48 g, yield 81%) of -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-22) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.46 (t, J = 7.3 Hz, 1H), 7.51-7.74 (m, 11H), 7.89-7.99 (m , 5H), 8.07-8.11 (m, 3H), 8.22 (d, J = 8.3 Hz, 1H), 8.38 (d, J = 8.8 Hz, 2H), 8.728d , J = 7.8 Hz, 1H), 8.79 (d, J = 8.2 Hz, 1H), 8.85 (d, J = 8.2 Hz, 1H), 9.01 (s, 1H), 9 .19 (s, 1H), 9.23 (s, 1H).

Example 32

Under an argon stream, compound B-17 (1.75 g), 5-bromo-2,2′-bipyridine (771 mg), and tetrakis (triphenylphosphino) palladium (63.0 mg) were added to 1,4-dioxane ( (55.0 mL), 3M aqueous potassium carbonate solution (1.82 mL) was added, and the mixture was stirred with heating at 95 ° C. for 18 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 40 mL of toluene to obtain the desired 2- [3- (9-phenanthryl) -5- (2,2′-bipyridin-5-yl). A white powder (yield 1.33 g, 73% yield) of phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-23) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.33 (dd, J = 7.4, 4.8 Hz, 1H), 7.57-7.73 (m, 9H), 7.86 (t , J = 7.7 Hz, 1H), 7.91 (s, 1H), 7.93 (d, J = 8.0 Hz, 1H), 7.96-7.98 (m, 2H), 8.07 (D, J = 8.2 Hz, 1H), 8.27 (d, J = 8.3 Hz, 1H), 8.37 (d, J = 8.0 Hz, 2H), 8.49 (d, J = 8.0 Hz, 1H), 8.55 (d, J = 8.3 Hz, 1H), 8.70-8.74 (m, 2H), 8.78 (dmJ = 8.2 Hz, 1H), 8. 84 (d, J = 8.1 Hz, 1H), 9.01 (s, 1H), 9.19 (s, 1H), 9.21 (s, 1H).

Example 33

Under an argon stream, Compound B-1 (22.6 g), bispinacolatodiboron (14.0 g), potassium acetate (10.8 g), and bis (triphenylphosphine) palladium dichloride (702 mg) were added in 1,4- Suspended in dioxane (250 mL) and stirred with heating at 100 ° C. for 21 hours. The reaction mixture was allowed to cool, and the solvent was evaporated under reduced pressure. The obtained solid was suspended in chloroform and then filtered. Water was added to the filtrate, and the separated and extracted organic layer was dried over anhydrous magnesium sulfate. The solvent was distilled off from the obtained organic layer under reduced pressure to obtain the desired 2- [3-chloro-5- (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenyl]. A white powder (yield 17.5 g, yield 70%) of -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-18) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 1.44 (s, 12H), 7.61-7.74 (m, 5H), 7.94-7, 96 (m, 2H), 8. 38 (d, J = 8.1 Hz, 2H), 8.79 (d, J = 7.2 Hz, 1H), 8.87 (s, 1H), 9.04 (s, 1H).

Example 34

Under an argon stream, compound B-2 (1.50 g), 4-isoquinolylboronic acid (567 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-tri Isopropyl biphenyl (78.1 mg) was suspended in 1,4-dioxane (55.0 mL), 3M-potassium carbonate aqueous solution (1.8 mL) was further added, and the mixture was stirred with heating at 90 ° C. for 20 hr. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 15 mL of toluene to obtain the desired 2- [3- (4-isoquinolyl) -5- (9-phenanthryl) phenyl] -4-phenyl [ 1] White powder of benzothieno [3,2-d] pyrimidine (C-24) (yield 1.22 g, yield 70%) was obtained.
¹ H-NMR (CDCl ₃ ): δ 7.56-7.78 (m, 9H), 7.83 (s, 1H), 7.93-8.16 (m, 6H), 8.33 (d, J = 8.0 Hz, 2H), 8.42 (d, J = 8.9, 2H), 8.68 (d, J = 7.5 Hz, 1H), 8.77-8.79 (m, 2H) ), 8.85 (d, J = 8.2 Hz, 1H), 9.03 (s, 1H), 9.20 (s, 1H), 9.56 (s, 1H).

Example 35

Under an argon stream, compound B-2 (1.50 g), 8-quinolylboronic acid (567 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl ( 78.1 mg) was suspended in 1,4-dioxane (55.0 mL), 3M aqueous potassium carbonate solution (1.82 mL) was further added, and the mixture was stirred with heating at 90 ° C. for 20 hr. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 20 mL of toluene to obtain the desired 2- [3- (9-phenanthryl) -5- (8-quinolyl) phenyl] -4-phenyl [ 1] A white powder of benzothieno [3,2-d] pyrimidine (C-25) (yield 1.37 g, yield 78%) was obtained.
¹ H-NMR (CDCl ₃ ): δ 7.48 (dd, J = 8.2, 4.1 Hz, 1H), 7.52-7.73 (m, 10H), 7.90-7.94 (m , 2H), 7.97-8.00 (m, 2H), 8.03 (d, J = 7.2 Hz, 1H), 8.08 (s, 1H), 8.29 (d, J = 8 .5 Hz, 1 H), 8.36-8.38 (m, 3 H), 8.68 (d, J = 7.5 Hz, 1 H), 8, 77 (d, J = 7.9 Hz, 1 H), 8 .82 (d, J = 8.0 Hz, 1H), 9.03 (s, 1H), 9.07 (d, J = 4.1 Hz, 1H), 9.20 (s, 1H).

Example 36

Under an argon stream, compound B-1 (1.81 g), phenylboronic acid (1.17 g), palladium acetate (18.0 mg) and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl ( 114 mg) was suspended in THF (40 mL), 3M aqueous potassium carbonate solution (6.4 mL) was added, and the mixture was heated to reflux for 26 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and the desired 4-phenyl-2- [1,1 ′: 3 ′, 1 ″ -terphenyl-5′-yl] [1] benzothieno [3, A gray powder (yield 1.89 g, yield 96%) of 2-d] pyrimidine (C-26) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.46 (t, J = 7.4 Hz, 2H), 7.56 (dd, 8.2, 7.4 Hz, 4H), 7.60-7 .73 (m, 5H), 7.85 (d, J = 8.2 Hz, 4H), 7.96 (d, J = 7.9 Hz, 1H), 7.98 (s, 1H), 8.41 (D, J = 8.1 Hz, 2H), 8.78 (d, J = 7.9 Hz, 1H), 9.01 (s, 2H).

Example 37

Under an argon stream, compound B-10 (1.23 g), 4- (4,6-diphenylpyridin-2-yl) phenylboronic acid (1.15 g), palladium acetate (12.3 mg), and 2-dicyclohexylphosphine Fino-2 ′, 4 ′, 6′-triisopropylbiphenyl (78.1 mg) was suspended in 1,4-dioxane (55.0 mL), and further 3M-potassium carbonate aqueous solution (1.82 mL) was added. The mixture was stirred at 7 ° C. for 7 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 50 mL of toluene to obtain the desired 2- [4- (4,6-diphenylpyridin-2-yl) -1,1 ′: 3 ′. , 1 ″ -terphenyl-5′-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-27) as a white powder (yield 1.75 g, yield 89%) It was.
¹ H-NMR (CDCl ₃ ): δ 7.43-7.49 (m, 3H), 7.52-7.58 (m, 6H), 7.62-7.69 (m, 4H), 7. 72 (dd, J = 8.0, 7.1 Hz, 1H), 7.85 (d, J = 8.2 Hz, 2H), 7.93 (d, J = 8.4 Hz, 2H), 7.96 (D, J = 8.0 Hz, 1H), 7.9 (s, 2H), 8.00 (d, J = 8.4 Hz, 2H), 8.03 (s, 1H), 8.28 (d , J = 8.5 Hz, 4H), 8.41 (d, J = 8.2 Hz, 2H), 8.78 (d, J = 7.3 Hz, 1H), 9.04 (s, 1H), 9 .07 (s, 1H).

Example 38

Under an argon stream, compound B-10 (1.23 g), 4- (2,6-diphenylpyridin-4-yl) phenylboronic acid (1.15 g), palladium acetate (12.3 mg), and 2-dicyclohexylphosphine Fino-2 ′, 4 ′, 6′-triisopropylbiphenyl (78.1 mg) was suspended in 1,4-dioxane (55.0 mL), and further 3M-potassium carbonate aqueous solution (1.82 mL) was added. The mixture was stirred at 7 ° C. for 7 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 50 mL of toluene to obtain the desired 2- [4- (2,6-diphenylpyridin-4-yl) -1,1 ′: 3 ′. , 1 ″ -terphenyl-5′-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-28) as a white powder (yield 1.86 g, yield 95%) It was.
¹ H-NMR (CDCl ₃ ): δ 7.43-7.69 (m, 13H), 7.71 (dd, J = 8.0, 7.1 Hz, 1H), 7.80 (d, J = 8 .2 Hz, 2H), 7.86 (d, J = 8.2 Hz, 2H), 7.93 (s, 1H), 7.96 (d, J = 7.9 Hz, 1H), 7.98-8 0.00 (m, 3H), 8.05 (s, 1H), 8.26 (d, J = 8.3 Hz, 2H), 8.38-8.43 (m, 4H), 8.79 (d , J = 7.8 Hz, 1H), 9.03 (s, 1H), 9.09 (s, 1H).

Example 39

Under an argon stream, compound B-17 (1.75 g), 2-bromopyridine (518 mg), and tetrakis (triphenylphosphino) palladium (63.0 mg) were suspended in 1,4-dioxane (55.0 mL). Further, 3M-potassium carbonate aqueous solution (1.82 mL) was added, and the mixture was heated and stirred at 95 ° C. for 123 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with a mixed solvent of 15 mL of toluene and 20 mL of methanol to obtain the desired 2- [3- (9-phenanthryl) -5- (2-pyridyl) phenyl. ] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-29) was obtained as a white powder (yield 974 mg, yield 60%).
¹ H-NMR (CDCl ₃ ): δ 7.31 (dd, J = 7.4, 4.8 Hz, 1H), 7.55-7.73 (m, 9H), 7.85 (t, J = 7 .7 Hz, 1H), 7.92-7.96 (m, 3H), 8.01 (d, J = 8.0 Hz, 1H), 8.07 (d, J = 8.2 Hz, 1H), 8 .38 (m, 3H), 8.74 (d, J = 7.6 Hz, 1H), 8.77-8.80 (m, 2H), 8.83 (d, J = 7.8 Hz, 1H) , 9.01 (s, 1H), 9.47 (s, 1H).

Example 40

Under an argon stream, mercaptoacetophenone (1.52 g) and 3-chloro-2-fluorobenzonitrile (15.6 g) were suspended in DMF (15 mL) and stirred at 0 ° C. Next, 4N-potassium hydroxide aqueous solution was added dropwise, and the mixture was stirred with heating at 50 ° C. for 30 min. Thereafter, 30 mL of water was added, and the mixture was allowed to cool, and then the precipitate was filtered off to give a yellow powder of the desired 3-amino-2-benzoyl-7-chlorobenzo [b] thiophene (A-6) (yield 1. 73 g, yield 60%).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.47 (t, J = 7.9 Hz, 1H), 7.51-7.60 (m, 3H), 7.68 (dd, J = 7 .9, 0.8 Hz, 1H), 7.77 (d, J = 8.0 Hz, 2H), 8.25 (dd, J = 7.9, 0.8 Hz, 1H), 8.35 (s, 2H).

Under an argon atmosphere, Compound A-6 (1.50 g), 3,5-dibromobenzonitrile (1.50 g), and potassium phosphate (2.21 g) were suspended in DMF (10.4 mL), and the mixture was stirred at room temperature. Stir for hours. Thereafter, water is added, and the precipitate is filtered off to obtain the desired 2- (3,5-dibromophenyl) -6-chloro-4-phenyl [1] benzothieno [3,2-d] pyrimidine (B -19) gray powder (yield 2.33 g, 84% yield). )
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.62 (t, J = 7.8 Hz, 1H), 7.66-7.71 (m, 3H), 7.73 (d, J = 7 .8 Hz, 1H), 7.83 (s, 1H), 8.35 (d, J = 7.8 Hz, 2H), 8.63 (d, J = 7.7 Hz, 1H), 8.84 (s) , 2H).

Example 41

Under an argon atmosphere, compound B-19 (1.59 g), 4- (2-pyridyl) phenylboronic acid (1.43 g), and tetrakis (triphenylphosphino) palladium (69.3 mg) were added to THF (60 mL). The suspension was suspended, 3M aqueous potassium carbonate solution (4.8 mL) was added, and the mixture was heated to reflux for 24 hours. The reaction mixture was allowed to cool to room temperature, and water and methanol were added. The precipitated solid is purified by column chromatography (developing solvent: chloroform), whereby 6-chloro-2- [4,4 ″ -bis (2-pyridyl)-[1,1 ′: 3 ′, 1 ′ '] -Terphenyl-5'-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-20) yellow powder (yield 1.57 g, 77% yield), and 6- Chloro-2- [5-bromo-4 '-(2-pyridyl) biphenyl-3-yl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-21) yellow powder (Yield 0 .153 g, yield 8.5%).
¹ H-NMR (CDCl ₃ ) δ (ppm) of Compound B-20: 7.29 (dd, J = 7.1, 4.8 Hz, 2H), 7.61-7.74 (m, 5H), 7.82 (dd, J = 7.8, 7.1 Hz, 2H), 7.86 (d, J = 7.8 Hz, 2H), 7.97 (d, J = 8.4 Hz, 4H), 8 .09 (s, 1H), 8.20 (d, J = 8.4 Hz, 4H), 8.43 (d, J = 7.9 Hz, 2H), 8.71 (d, J = 7.8 Hz, 1H), 8.77 (d, J = 4.8 Hz, 2H), 9.07 (s, 2H).
¹ H-NMR (CDCl ₃ ) δ (ppm) of Compound B-21: 7.28-7.31 (m, 1H), 7, 63 (t, J = 7.8 Hz, 1H), 7.66 ( m, 3H), 7.73 (d, J = 7.8 Hz, 1H), 7.80-7.85 (m, 2H), 7.87 (d, J = 8.4 Hz, 2H), 7. 96 (s, 1H), 8.18 (d, J = 8.4 Hz, 2H), 8.40 (d, J = 8.1 Hz, 2H), 8.68 (d, J = 7.8 Hz, 1H) ), 8.76 (d, = 4.8 Hz, 1H), 8.92 (s, 1H), 9.00 (s, 1H).

Example 42

Under an argon stream, Compound B-20 (1.57 g), phenylboronic acid (338 mg), palladium acetate (10.4 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl (66 0.0 mg) was suspended in THF (60 mL), 3M aqueous potassium carbonate solution (1.8 mL) was further added, and the mixture was heated to reflux for 5 hours. After allowing to cool, water and methanol are added, and the precipitated solid is collected by filtration to give the desired 2- [4,4 ″ -bis (2-pyridyl)-[1,1 ′: 3 ′, 1 ″. ] -Terphenyl-5'-yl] -4,6-diphenyl [1] benzothieno [3,2-d] pyrimidine (C-30) was obtained as a white powder (yield 1.63 g, yield 98%). .
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.29 (dd, J = 7.1, 4.8 Hz, 2H), 7.52 (t, J = 7.4 Hz, 1H), 7.58 −7.67 (m, 5H), 7.72-7.80 (m, 4H), 7.82 (dd, J = 7.9, 7.1 Hz, 2H), 7.86 (d, J = 7.9 Hz, 2H), 7.99 (d, J = 8.4 Hz, 4H), 8.10 (s, J = 1H), 8.21 (d, J = 8.4 Hz, 4H), 8. 39 (d, J = 8.1 Hz, 2H), 8.78 (d, J = 4.8 Hz, 2H), 8.81 (d, J = 6.6 Hz, 1H), 9.11 (s, 2H) ).

Example 43

Under a stream of argon, Compound A-1 (1.00 g), 3,4-dichlorobenzonitrile (747 mg), and sodium sulfate (1.68 g) were suspended in tetrahydrofuran (5.0 mL), and tetrahydrofuran (15.0 mL) was further suspended. Tert-Butoxypotassium (487 mg) dissolved in) was added dropwise, and the reaction system was heated and stirred at 50 ° C. for 18 hours. After allowing to cool, water and methanol were added, and the precipitated solid was collected by filtration. The obtained solid was washed with water and methanol, and the desired 2- (3,4-dichlorophenyl) -4-phenyl [1] benzothieno [3,2-d] pyrimidine (B-22) white powder (yield 1 .21 g, 75% yield).
¹ H-NMR (DMSO-d ₆ ) δ (ppm): 7.59-7.67 (m, 5H), 7.71 (dd, J = 8.0, 7.2 Hz, 1H), 7.95 (D, J = 7.9 Hz, 1H), 8.35 (d, J = 8.1 Hz, 2H), 8.62 (d, J = 8.4 Hz, 1H), 8.71 (d, J = 7.9 Hz, 1H), 8.87 (s, 1H).

Under an argon stream, compound B-22 (800 mg), 4- (2-pyridyl) phenylboronic acid (860 mg), palladium acetate (8.8 mg), and 2-dicyclohexylphosphino-2 ', 4', 6'- Triisopropylbiphenyl (56.0 mg) was suspended in 1,4-dioxane (40.0 mL), 3M-potassium carbonate aqueous solution (2.6 mL) was further added, and the mixture was heated and stirred at 90 ° C. for 23 hours. After allowing to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol, and hexane, and recrystallized with 20 mL of toluene to obtain the desired 4-phenyl-2- [4,4 ″ -bis (2-pyridyl) -1,1 ′: A white powder (yield 883 mg, yield 70%) of 2 ′, 1 ″ -terphenyl-4′-yl] [1] benzothieno [3,2-d] pyrimidine (C-31) was obtained.
¹ H-NMR (DMSO-d ₆ ) δ (ppm): 7.19-7.24 (m, 2H), 7.40 (d, J = 8.4 Hz, 2H), 7.47 (d, J = 8.5 Hz, 2H), 7.58-7.75 (m, 10H), 7.91 (d, J = 8.5 Hz, 2H), 7.95 (m, 3H), 8.40 (d , J = 8.2 Hz, 2H), 8.67-8.70 (m, 2H), 8.75 (d, J = 7.9 Hz, 1H), 8.86 (d, J = 8.1 Hz, 1H), 8.91 (s, 1H).

Example 44

Under an argon stream, mercaptoacetophenone (1.82 g) and 3-bromo-6-fluorobenzonitrile (2.4 g) were suspended in DMF (10 mL) and stirred at 0 ° C. 4N-potassium hydroxide aqueous solution (6.0 mL) was added dropwise thereto, and then the mixture was heated and stirred at 65 ° C. for 50 minutes. Then, after adding water and allowing to cool, the precipitate was filtered off to give a yellow powder of the desired 3-amino-2-benzoyl-5-bromobenzo [b] thiophene (A-7) (yield 2.56 g, Yield 66%).
¹ H-NMR (DMSO-d ₆ ) δ (ppm): 7.49-7.58 (m, 3H), 7.67 (d, J = 8.6 Hz, 1H), 7.75 (d, J = 8.1 Hz, 2H), 7.80 (d, J = 8.6 Hz, 1H), 8.25 (s, 2H), 8.54 (s, 1H).

Under an argon atmosphere, Compound A-7 (1.67 g), benzonitrile (1.60 g), and potassium phosphate (2.20 g) were suspended in DMF (10 mL), and the mixture was heated and stirred at 80 ° C. for 18 hours. Then, water and methanol were added and stirred with an ice bath. The precipitated solid was filtered off and washed with water and methanol to give the desired 8-bromo-2,4-diphenyl [1] benzothieno [3,2-d] pyrimidine (B-23) yellow powder (yield) 459 mg, 21% yield).
¹ H-NMR (DMSO-d ₆ ) δ (ppm): 7.53-7.69 (m, 6H), 7.80 (d, J = 8.5 Hz, 1H), 7.83 (d, J = 8.5 Hz, 1H), 8.38 (d, J = 8.1 Hz, 2H), 8.79 (d, J = 8.2 Hz, 2H), 8.88 (s, 1H).

Example 45

Under an argon stream, compound B-1 (904 mg), carbazole (702 mg), palladium acetate (9.0 mg), potassium carbonate (1.16 g), and 18-crown-6-ether (106 mg) were added to xylene (20 mL). The suspension was further added, and a 1M-toluene solution (120 μL) of tri (tert-butyl) phosphine was added, and the mixture was heated to reflux for 5 hours. The reaction mixture is allowed to cool, water and methanol are added, and the precipitated solid is collected by filtration to give the desired 2- (3,5-dicarbazolylphenyl] -4-phenyl [1] benzothieno [3,2 -D] A gray powder (yield 1.22 g, yield 91%) of pyrimidine (C-32) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.37 (d, J = 7.3 Hz, 4H), 7.50 (dd, J = 8.2, 7.3 Hz, 4H), 7.58 −7.64 (m, 4H), 7.68 (d, J = 8.2 Hz, 4H), 7.72 (t, J = 7.2 Hz, 1H), 7.96-7.98 (m, 2H), 8.22 (d, J = 7.8 Hz, 4H), 8.37 (d, J = 7.7 Hz, 2H), 8.66 (d, J = 7.8 Hz, 1H), 9. 13 (s, 2H).

Example 46

Under an argon stream, compound B-17 (1.75 g), 1-chloroisoquinoline (537 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl ( 78.1 mg) was suspended in 1,4-dioxane (55.0 mL), 3M-potassium carbonate aqueous solution (1.82 mL) was further added, and the mixture was heated and stirred at 90 ° C. for 5 hours. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and then purified by column chromatography (developing solvent: chloroform) to give the desired 2- [3- (1-isoquinolyl) -5- (9-phenanthryl) A white powder (yield 290 mg, 17%) of phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-33) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.52 to 7.75 (m, 12H), 7.92-7.95 (m, 3H), 7.97 (d, J = 7.8 Hz) , 1H), 8.04 (s, 1H), 8.17 (d, J = 8.2 Hz, 1H), 8.35-8.37 (m, 3H), 8.67 (d, J = 7 .5 Hz, 1 H), 8.72 (d, J = 5.8 Hz, 1 H), 8.77 (d, J = 8.0 Hz, 1 H), 8.83 (d, J = 7.9 Hz, 1 H) , 9.10 (s, 1H), 9.23 (s, 1H).

Example 47

Under an argon stream, Compound B-1 (243 mg), 4- (4,6-dimethylpyrimidin-2-yl) phenylboronic acid (400 mg), palladium acetate (2.40 mg), and 2-dicyclohexylphosphino-2 ′ , 4 ′, 6′-triisopropylbiphenyl (15.0 mg) suspended in 1,4-dioxane (11.0 mL), 3M aqueous potassium carbonate solution (720 μL) was added, and the mixture was stirred with heating at 70 ° C. for 20 hours. did. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 10 mL of toluene to obtain the desired 4-phenyl-2- [4,4 ″ -bis (4,6-dimethylpyrimidin-2-yl]. ) -1,1 ′: 3 ′, 1 ″ -terphenyl-5′-yl] [1] benzothieno [3,2-d] pyrimidine (C-34) white powder (yield 289 mg, 76% yield) )
¹ H-NMR (CDCl ₃ ) δ (ppm): 2.58 (s, 12H), 6.96 (s, 2H), 7.60-7.73 (m, 5H), 7.95-7. 97 (m, 5H), 8.09 (s, 1H), 8.42 (d, J = 8.2 Hz, 2H), 8.62 (d, J = 8.5 Hz, 4H), 8.78 ( d, J = 7.7 Hz, 1H), 9.09 (s, 2H).

Example 48

Under an argon stream, compound B-17 (1.75 g), 2-chloro-4,6-diphenylpyridine (872 mg), palladium acetate (12.3 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′, 6 '-Triisopropylbiphenyl (78.9 mg) was suspended in 1,4-dioxane (55.0 mL), 3M aqueous potassium carbonate solution (1.82 mL) was further added, and the mixture was stirred with heating at 85 ° C. for 16 hr. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and recrystallized with 50 mL of toluene to obtain the desired 2- [3- (9-phenanthryl) -5- (4,6-diphenylpyridin-2-yl). A white powder (yield 1.56 g, yield 77%) of phenyl] -4-phenyl [1] benzothieno [3,2-d] pyrimidine (C-35) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.23-7.74 (m, 15H), 7.82 (d, J = 8.2 Hz, 2H), 7.93-7.95 (m , 2H), 7.98 (s, 1H), 7.99 (d, J = 7.7 Hz, 1H), 8.11 (d, J = 8.3 Hz, 1H), 8.15 (s, 1H) ), 8.30 (d, J = 8.2 Hz, 2H), 8.43 (d, J = 8.1 Hz, 2H), 8.55 (s, 1H), 8.74 (d, J = 7) .9 Hz, 1H), 8.79 (d, J = 8.3 Hz, 1H), 8.85 (d, J = 8.1 Hz, 1H), 9.03 (s, 1H), 9.73 (s) , 1H).

Example 49

Under an argon stream, 1-acetylnaphthalene (3.57 g) and 3-chloro-1,2-benzisothiazol (3.39 g) were added to DMF (10 mL), and a DMF suspension of potassium tert-butoxide was added thereto. (30 mL) was added dropwise and then stirred at 80 ° C. for 5 hours. The reaction mixture was allowed to cool to room temperature, and water and chloroform were added. The organic layer was extracted by liquid separation operation and dried over anhydrous magnesium sulfate. This was purified by column chromatography (developing solvent: hexane / chloroform) to give the desired 3-amino-2- (1-naphthoyl) benzo [b] thiophene (A-8) yellow liquid (yield 3.56 g). Yield 59%).
¹ H-NMR (DMSO-d ₆ ), δ (ppm): 7.44 (dd, J = 8.0, 7.1 Hz, 1H), 7.52-7.64 (m, 4H), 7. 71-7.75 (m, 2H), 7.93 (d, J = 8.5 Hz, 1H), 8.04 (d, J = 8.7 Hz, 1H), 8.09 (d, J = 8 .2 Hz, 1 H), 8.30 (d, J = 8.0 Hz, 1 H), 8.40 (s, 2 H).

Under a stream of argon, Compound A-8 (3.50 g), 3-bromo-5-chlorobenzonitrile (2.75 g) and potassium phosphate (4.88 g) were added to DMF (23 mL), and the mixture was stirred at room temperature for 17 hours. Stir. Thereafter, 3-bromo-5-chlorobenzonitrile (2.75 g) was added, and the mixture was heated with stirring at 100 ° C. for 30 minutes. The reaction mixture was allowed to cool to room temperature, and methanol was added. The precipitated solid was washed with water and methanol to give the desired 2- (3-bromo-5-chlorophenyl) -4- (1-naphthyl) [1] benzothieno [3,2-d] pyrimidine (B-24 ) Was obtained (yield 1.34 g, yield 23%).
¹ H-NMR (DMSO-d ₆ ), δ (ppm): 7.54 (dd, J = 8.5, 6.8 Hz, 1H), 7.61 (dd, J = 8.1, 6.8 Hz) , 1H), 7.66-7.74 (m, 4H), 7.89 (d, J = 7.7 Hz, 1H), 7.96 (d, J = 7.1 Hz, 1H), 8.03 (D, J = 8.1 Hz, 1H), 8.06 (d, J = 8.8 Hz, 1H), 8.11 (d, J = 8.3 Hz, 1H), 8.69 (s, 1H) , 8.77-8.81 (m, 2H).

Example 50

Under an argon stream, compound B-24 (1.34 g), 4- (2-pyridyl) phenylboronic acid (1.24 g), palladium acetate (12.0 mg), and 2-dicyclohexylphosphino-2 ′, 4 ′ , 6'-Triisopropylbiphenyl (76.3 mg) was suspended in THF (53.0 mL), 3M-potassium carbonate aqueous solution (5.3 mL) was added, and the mixture was heated to reflux for 22 hours. The reaction mixture is allowed to cool, water and methanol are added, and the precipitated solid is collected by filtration to give the desired 2- [4,4 ″ -bis (2-pyridyl)-[1,1 ′: 3 ′, 1 ”] -Terphenyl-5′-yl] -4- (1-naphthyl) [1] benzothieno [3,2-d] pyrimidine (C-36) gray powder (yield 1.68 g, yield 99%) )
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.26-7.29 (m, 2H), 7.54 (dd, J = 8.5, 6.9 Hz, 1H), 7.61 (dd , J = 7.6, 7.4 Hz, 1H), 7.65-7.73 (m, 3H), 7.78 (m, 4H), 7.89 (d, J = 7.0 Hz, 1H) 7.95 (d, J = 8.4 Hz, 4H), 8.03 (d, J = 8.0 Hz, 1H), 8.04 (d, J = 7.0 Hz, 1H), 8.10− 8.12 (m, 2H), 8.17 (d, J = 8.4 Hz, 4H), 8.25 (d, J = 8.5 Hz, 1H), 8.76 (d, J = 4.6z) , 2H), 8.84 (d, J = 7.3 Hz, 1H), 9.07 (s, 2H).

Example 51

Under an argon stream, compound B-17 (1.28 g), 8- (4-chlorophenyl) quinoline (527 mg), palladium acetate (9.0 mg), and 2-dicyclohexylphosphino-2 ', 4', 6'- Triisopropylbiphenyl (57.2 mg) was suspended in THF (22.0 mL), 3M-potassium carbonate aqueous solution (1.33 mL) was further added, and the mixture was heated to reflux for 17 hours. The reaction mixture was allowed to cool, water and methanol were added, and the precipitated solid was collected by filtration. This was purified by column chromatography (developing solvent: hexane / chloroform) to give the desired 2- [5- (9-phenanthryl) -4 '-(8-quinolyl) biphenyl-3-yl] -4-phenyl. [1] A white powder (98 mg, 14% yield) of benzothieno [3,2-d] pyrimidine (C-37) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.45 (dd, J = 8.3, 4.1 Hz, 1H), 7.49-7.53 (m, 1H), 7.58-7 .74 (m, 10H), 7.82-7.87 (m, 1H), 7.88 (d, J = 8.3 Hz, 2H), 7.94 (s, 1H), 7.96-8 0.00 (m, 1H), 7.9 (d, J = 8.3 Hz, 2H), 8.03 (s, 1H), 8.13 (d, J = 8.4 Hz, 1H), 8.24 (D, J = 8.3 Hz, 1H), 8.32-8.34 (m, 1H), 8.41 (d, J = 8.1 Hz, 2H), 8.75 (d, J = 7. 8 Hz, 1H), 8.79 (d, J = 7.6 Hz, 1H), 8.85 (d, J = 8.0 Hz, 1H), 8.95 (s, 1H), 9.02 (d, J = 4.1 Hz, 1H), 9.2 (S, 1H).

Synthesis example 1

Under an argon atmosphere, Compound A-7 (1.29 g) was suspended in formamide (16 mL) and stirred at room temperature. After concentrated sulfuric acid was added dropwise thereto, the mixture was heated and stirred at 180 ° C. for 22 hours. After allowing the reaction to cool, water was added. The precipitate was filtered off to obtain the desired 8-bromo-4-phenyl [1] benzothieno [3,2-d] pyrimidine gray powder (yield 1.16 g, yield 95%).
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.60-7.67 (m, 3H), 7.79-7.84 (m, 2H), 8.24 (d, J = 7.6 Hz) , 2H), 8.76 (s, 1H), 9.42 (s, 1H).

Under an argon stream, 8-bromo-4-phenyl [1] benzothieno [3,2-d] pyrimidine (1.10 g), 5′-m-terphenylboronic acid (972 mg), palladium acetate (14.5 mg), And 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl (92.1 mg) were suspended in THF (32 mL), and 3M aqueous potassium carbonate solution (2.4 mL) was added for 66 hours. Heated to reflux. The reaction mixture was allowed to cool, water was added, and the precipitated solid was collected by filtration. The obtained solid was washed with water, methanol and hexane, and the desired 8- [1,1 ′: 3 ′, 1 ″ -terphenyl-5′-yl] -4-phenyl [1] benzothieno [3, A gray powder (yield 1.54 g, yield 98%) of 2-d] pyrimidine (ETL-3) was obtained.
¹ H-NMR (CDCl ₃ ) δ (ppm): 7.44 (t, J = 7.3 Hz, 2H), 7.53 (dd, J = 7.8, 7.3 Hz, 4H), 7.60 −7.67 (m, 3H), 7.77 (d, J = 7.8 Hz, 4H), 7.87 (s, 1H), 7.97 (s, 2H), 8.04 (d, J = 8.4 Hz, 1H), 8.08 (d, J = 8.4 Hz, 1H), 8.28 (d, J = 7.9 Hz, 2H), 8.95 (s, 1H), 9.45. (S, 1H).

Synthesis example 2

Under an argon stream, mercaptoacetophenone (3.04 g) and 3-cyano-2-fluoropyridine (2.44 g) were suspended in DMF (20 mL) and stirred at 0 ° C. To this was added dropwise 4N-potassium hydroxide aqueous solution (10 mL), followed by stirring at room temperature for 14 hours. Thereafter, water was added, the reaction product was allowed to cool, and the precipitate was filtered off to give a desired yellow powder of 3-amino-2-benzoyl-5-thieno [5,4-b] pyridine (yield 2. 92 g, 57% yield).
¹ H-NMR (DMSO-d ₆ ): δ 7.51 (dd, J = 8.2, 4.6 Hz, 1H), 7.53-7.62 (m, 3H), 7.80 (d, J = 8.0 Hz, 2H), 8.44 (s, 2H), 8.68 (d, J = 8.2 Hz, 1H), 8.74 (d, J = 4.6 Hz, 1H).

Under an argon atmosphere, 3-amino-2-benzoyl-5-thieno [5,4-b] pyridine (2.54 g) and 3 ′, 5′-dichloroacetophenone (3.12 g) were suspended in acetic acid (20 mL). Cloudy and stirred at room temperature. After concentrated sulfuric acid was added dropwise thereto, the mixture was refluxed for 42 hours. After allowing the reaction to cool, water was added. By purifying the precipitate by column chromatography (developing solvent: chloroform), the desired 2- (3,5-dichlorophenyl) -4-phenylthieno [3,2-b: 5,4-b ′] dipyridine A white powder (yield 1.54 g, yield 38%) was obtained.
¹ H-NMR (CDCl ₃ ) δ 7.48 (s, 1H), 7.55 (dd, J = 7.9, 4.7 Hz, 1H), 7.57-7.66 (m, 3H), 7 .85 (d, J = 8.2 Hz, 2H), 7.88 (s, 1H), 8.15 (s, 2H), 8.80 (d, J = 4.7 Hz, 1H), 8.89 (D, J = 7.9 Hz, 1H).

Under an argon stream, 2- (3,5-dichlorophenyl) -4-phenylthieno [3,2-b: 5,4-b ′] dipyridine (1.00 g), phenylboronic acid (718 mg), palladium acetate (27 6 mg) and 2-ditert-butylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl (173 mg) are suspended in 1,4-dioxane (12 mL), and 3M aqueous potassium carbonate solution (4. 0 mL) was added and heated to reflux for 15 hours. The reaction mixture was allowed to cool, water was added, and the aqueous layer was removed by decantation. The obtained solid is purified by column chromatography (developing solvent: chloroform) to give the desired 2- [1,1 ′: 3 ′, 1 ″ -terphenyl-5′-yl] -4-phenylthieno. A gray powder (yield 417 mg, yield 35%) of [3,2-b: 5,4-b ′] dipyridine (ETL-4) was obtained.
¹ H-NMR (CDCl ₃ ): δ 7.45 (t, J = 7.4 Hz, 2H), 7.51 (dd, J = 7.9, 4.7 Hz, 1H), 7.52-7.65 (M, 7H), 7.79 (d, J = 8.2 Hz, 4H), 7.87 (d, J = 8.2 Hz, 2H), 7.93 (s, 1H), 8.02 (s , 1H), 8.42 (s, 2H), 8.78 (d, J = 4.7 Hz, 1H), 8.89 (d, J = 7.9 Hz, 1H).

Purification Example 1 (Example)
Compound C-1 yellow powder (1.58 g, purity 99.7% before sublimation) was sublimated by heating to a vaporization section temperature of 330 ° C. and a collection section temperature of 280 ° C. under a vacuum of 1.0 × 10 ⁻³ Pa. Purification gave white powder of compound C-1 (yield 1.20 g, yield 76%, purity 99.8%).

Purification Example 2 (Example)
Compound C-26 yellow powder (1.68 g, purity 99.7% before sublimation) was sublimated by heating to a vaporization part temperature of 240 ° C. and a collection part temperature of 220 ° C. under a vacuum of 5.0 × 10 ⁻⁴ Pa. Purification gave a white powder of compound C-26 (yield 1.53 g, yield 91%, purity 99.9%).

Comparative Purification Example 1 (Comparative Example)
Compound ETL-3 gray powder (1.54 g, purity 99.7% before sublimation) was sublimated by heating to a vaporization section temperature of 240 ° C. and a collection section temperature of 220 ° C. under a vacuum of 5.0 × 10 ⁻⁴ Pa. Purification gave white powder of compound ETL-3 (yield 1.20 g, yield 78%, purity 99.4%).

Compared with Comparative Purification Example 1, the benzothienopyrimidine compound of the present invention was found to have improved post-sublimation purity and excellent heat resistance.

Preparation and performance evaluation of organic electroluminescent device comprising benzothienopyrimidine compound of the present invention as a constituent component The present invention will be described by the following test examples, but the present invention is not limited thereto. In addition, structural formulas and abbreviations of the compounds used are shown below.

Evaluation Example 1
As the substrate, a glass substrate with an ITO transparent electrode in which an indium-tin oxide (ITO) film having a width of 2 mm was patterned in a stripe shape was used. The substrate was cleaned with isopropyl alcohol and then surface-treated by oxygen plasma cleaning. Each layer was vacuum-deposited on the cleaned substrate by a vacuum deposition method, and an organic electroluminescence device having a light-emitting area of 4 mm ² as shown in FIG.
First, the glass substrate was introduced into a vacuum evaporation tank, and the pressure was reduced to 1.0 × 10 ⁻⁴ Pa. Thereafter, a hole injection layer 2, a first hole transport layer 3, a second hole transport layer 4, a light emitting layer 5, an electron transport layer are formed as an organic compound layer on the glass substrate with an ITO transparent electrode shown by 1 in FIG. 6 and the electron injection layer 7 were sequentially formed, and then the cathode layer 8 was formed.
In addition, all the materials which comprise each layer of an organic electroluminescent element were vacuum-deposited by the resistance heating system.
As the hole injection layer 2, HTL-1 was vacuum-deposited with a film thickness of 65 nm at a film formation rate of 0.15 nm / second.
As the first hole transport layer 3, HAT-CN was vacuum-deposited at a film thickness of 0.025 nm / second to a film thickness of 5 nm.
As the second hole transport layer 4, HTL-2 was vacuum-deposited with a film thickness of 10 nm at a film formation rate of 0.15 nm / second.
As the light emitting layer 5, both EML-1 and EML-2 are formed at a film formation rate of 0.18 nm / second and a film thickness of 25 nm (EML-1 / EML-2 = 95.4 / 4.6 (weight ratio)). Vacuum deposition was performed.
As the electron transport layer 6, the compound C-1 synthesized in Example 2 of the present invention was vacuum-deposited with a film thickness of 30 nm at a film formation rate of 0.15 nm / second.
As the electron injection layer 7, Liq was vacuum-deposited with a film thickness of 0.005 nm / second and a film thickness of 0.5 nm.
Finally, a metal mask was disposed so as to be orthogonal to the ITO stripe, and the cathode layer 8 was formed. The cathode layer 8 is formed by vacuum-depositing magnesium / silver (weight ratio 80/20) and silver in this order at film thicknesses of 80 nm and 20 nm at a film formation rate of 0.5 nm / second and 0.2 nm / second, respectively. A two-layer structure was adopted.
Each film thickness was measured with a stylus type film thickness meter (DEKTAK, manufactured by Veeco). Furthermore, this element was sealed in a nitrogen atmosphere glove box having an oxygen and moisture concentration of 1 ppm or less. For the sealing, a glass sealing cap and the above-described film-forming substrate epoxy type ultraviolet curable resin (manufactured by Nagase ChemteX Corporation) were used.

Evaluation Example 2
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1 except that Compound C-2 synthesized in Example 3 was used instead of Compound C-1. .

Evaluation Example 3
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescence device was produced in the same manner as in Evaluation Example 1, except that Compound C-3 synthesized in Example 4 was used instead of Compound C-1. .

Evaluation Example 4
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent device was produced in the same manner as in Evaluation Example 1 except that Compound C-4 synthesized in Example 5 was used instead of Compound C-1. .

Evaluation Example 5
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1 except that Compound C-5 synthesized in Example 6 was used instead of Compound C-1. .

Evaluation Example 6
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1 except that Compound C-14 synthesized in Example 19 was used instead of Compound C-1. .

Evaluation Example 7
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1 except that Compound C-15 synthesized in Example 20 was used instead of Compound C-1. .

Evaluation Example 8
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1, except that Compound C-18 synthesized in Example 25 was used instead of Compound C-1. .

Evaluation Example 9
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1, except that Compound C-23 synthesized in Example 32 was used instead of Compound C-1. .

Reference example 1
In the electron transport layer 6 of Evaluation Example 1, an organic electroluminescent element was produced in the same manner as in Evaluation Example 1 except that ETL-1, which is a known electron transport material, was used instead of Compound C-1. .

A direct current was applied to the organic electroluminescent devices produced in Evaluation Examples 1 to 9 and Reference Example 1, and the light emission characteristics were evaluated using a luminance meter of LUMINANCE METER (BM-9) manufactured by TOPCON. As the lifetime characteristic (h), the luminance decay time during continuous lighting when a current density of 10 mA / cm ² was passed was measured. Further, the time when the luminance (cd / m ² ) was reduced by 20% and the drive voltage increase when the device was driven for 20 hours were measured. In addition, Table 1 shows the measurement results together with the initial voltage (V) and the initial current efficiency (cd / A) when a current density of 10 mA / cm ² was passed. Note that the element lifetime (h) of each evaluation example is expressed as a relative value with the time (h) when the luminance (cd / m ² ) of the element in Reference Example 1 is reduced by 20% from the initial value being 100. .

Compared to Reference Example 1, it was found that the organic electroluminescent device using the benzothienopyrimidine compound of the present invention was superior in life characteristics and voltage rise suppression effect.

Evaluation Example 10
As the substrate, a glass substrate with an ITO transparent electrode in which an indium-tin oxide (ITO) film having a width of 2 mm was patterned in a stripe shape was used. The substrate was cleaned with isopropyl alcohol and then surface-treated by oxygen plasma cleaning. Each layer was vacuum-deposited on the cleaned substrate by a vacuum deposition method, and an organic electroluminescence device having a light-emitting area of 4 mm ² as shown in FIG.
First, the glass substrate was introduced into a vacuum evaporation tank, and the pressure was reduced to 1.0 × 10 ⁻⁴ Pa. Thereafter, a hole injection layer 12, a first hole transport layer 13, a second hole transport layer 14, a light emitting layer 15 and an electron transport layer are formed as an organic compound layer on the glass substrate with an ITO transparent electrode indicated by 11 in FIG. 16 were sequentially formed, and then the cathode layer 17 was formed.
In addition, all the materials which comprise each layer of an organic electroluminescent element were vacuum-deposited by the resistance heating system.
As the hole injection layer 12, HTL-1 was vacuum-deposited with a film thickness of 65 nm at a film formation rate of 0.15 nm / second.
As the first hole transport layer 13, HAT-CN was vacuum-deposited with a film thickness of 0.025 nm / second and a film thickness of 5 nm.
As the second hole transport layer 14, HTL-2 was vacuum-deposited at a film formation rate of 0.15 nm / second to a film thickness of 10 nm.
As the light-emitting layer 15, EML-1 and EML-2 are formed at a film formation rate of 0.18 nm / sec and a film thickness of 25 nm (EML-1 / EML-2 = 95.4 / 4.6 (weight ratio)). Vacuum deposition was performed.
As the electron transport layer 16, C-1 and Liq synthesized in Example 2 of the present invention were formed to a film thickness of 30 nm at a film formation rate of 0.15 nm / second (C-1 / Liq = 50/50 (weight ratio)). Vacuum co-evaporation).
Finally, a metal mask was arranged so as to be orthogonal to the ITO stripe, and the cathode layer 17 was formed. The cathode layer 17 is formed by vacuum-depositing magnesium / silver (weight ratio 80/20) and silver in this order at film thicknesses of 80 nm and 20 nm at a film formation rate of 0.5 nm / second and 0.2 nm / second, respectively. A two-layer structure was adopted.
Each film thickness was measured with a stylus type film thickness meter (DEKTAK, manufactured by Veeco).
Furthermore, this element was sealed in a nitrogen atmosphere glove box having an oxygen and moisture concentration of 1 ppm or less. For the sealing, a glass sealing cap and the above-described film-forming substrate epoxy type ultraviolet curable resin (manufactured by Nagase ChemteX Corporation) were used.

Evaluation Example 11
An organic electroluminescent device was produced in the same manner as in Evaluation Example 10 except that Compound C-2 synthesized in Example 3 was used instead of Compound C-1 in the electron transport layer 16 of Evaluation Example 10. .

Evaluation Example 12
An organic electroluminescent device was produced in the same manner as in Evaluation Example 10 except that Compound C-3 synthesized in Example 4 was used in place of Compound C-1 in the electron transport layer 16 of Evaluation Example 10. .

Evaluation Example 13
An organic electroluminescent device was produced in the same manner as in Evaluation Example 10 except that Compound C-4 synthesized in Example 5 was used in place of Compound C-1 in the electron transport layer 16 of Evaluation Example 10. .

Evaluation Example 14
An organic electroluminescent device was produced in the same manner as in Evaluation Example 10 except that Compound C-10 synthesized in Example 15 was used in place of Compound C-1 in the electron transport layer 16 of Evaluation Example 10. .

Evaluation Example 15
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescence device was produced in the same manner as in Evaluation Example 10 except that Compound C-12 synthesized in Example 17 was used instead of Compound C-1. .

Evaluation Example 16
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescent element was produced in the same manner as in Evaluation Example 10, except that Compound C-13 synthesized in Example 18 was used instead of Compound C-1. .

Evaluation Example 17
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescent element was produced in the same manner as in Evaluation Example 10 except that Compound C-15 synthesized in Example 20 was used instead of Compound C-1. .

Evaluation Example 18
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescence device was produced in the same manner as in Evaluation Example 10 except that Compound C-17 synthesized in Example 23 was used instead of Compound C-1. .

Evaluation Example 19
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescence device was produced in the same manner as in Evaluation Example 10 except that Compound C-20 synthesized in Example 28 was used instead of Compound C-1. .

Evaluation Example 20
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescent element was produced in the same manner as in Evaluation Example 10, except that Compound C-21 synthesized in Example 29 was used instead of Compound C-1. .

Evaluation Example 21
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescent element was produced in the same manner as in Evaluation Example 10 except that Compound C-22 synthesized in Example 31 was used instead of Compound C-1. .

Evaluation Example 22
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescent element was produced in the same manner as in Evaluation Example 10 except that Compound C-23 synthesized in Example 32 was used instead of Compound C-1. .

Evaluation Example 23
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescent element was produced in the same manner as in Evaluation Example 10, except that Compound C-24 synthesized in Example 34 was used instead of Compound C-1. .

Evaluation Example 24
In the electron transport layer 16 of Evaluation Example 10, an organic electroluminescence device was produced in the same manner as in Evaluation Example 10 except that Compound C-25 synthesized in Example 35 was used instead of Compound C-1. .

Reference example 2
In the electron transport layer 16 of Evaluation Example 6, an organic electroluminescent element was produced in the same manner as in Evaluation Example 6, except that ETL-1 which is a known electron transport material was used instead of Compound C-1. .

Reference example 3
In the electron transport layer 16 of Evaluation Example 6, an organic electroluminescent element was produced in the same manner as in Evaluation Example 6, except that ETL-2, which is a known electron transport material, was used instead of C-1.

A direct current was applied to the organic electroluminescence devices produced in Evaluation Examples 10 to 24, Reference Example 2 and Reference Example 3, and the light emission characteristics were evaluated using a luminance meter of LUMINANCE METER (BM-9) manufactured by TOPCON. did. As the lifetime characteristic (h), the luminance decay time during continuous lighting when a current density of 10 mA / cm ² was passed was measured. Further, the time when the luminance (cd / m ² ) was reduced by 10% and the drive voltage increase when the device was driven for 50 hours were measured. In addition, Table 2 shows the measurement results together with the initial voltage (V) and the initial current efficiency (cd / A) when a current density of 10 mA / cm ² was passed. The driving voltage (V) and current efficiency (cd / A) of each evaluation example are shown as relative values when the measured value in Reference Example 2 (ETL-1) is 100. The element lifetime (h) of each evaluation example is shown as a relative value with the time (h) when the luminance (cd / m ² ) of the element in Reference Example 2 is reduced by 10% from the initial value being 100.

Compared with Reference Example 2, it was found that the organic electroluminescence device using the benzothienopyrimidine compound of the present invention was remarkably excellent in life characteristics and also excellent in the voltage rise suppressing effect.

Compared to Reference Example 3, it was found that the organic electroluminescent device using the benzothienopyrimidine compound of the present invention was superior in current efficiency.

Evaluation Example 25
As the substrate, a glass substrate with an ITO transparent electrode in which an indium-tin oxide (ITO) film having a width of 2 mm was patterned in a stripe shape was used. The substrate was cleaned with isopropyl alcohol and then surface-treated by oxygen plasma cleaning. Each layer was vacuum-deposited on the cleaned substrate by a vacuum deposition method, and an organic electroluminescence device having a light-emitting area of 4 mm ² as shown in FIG.
First, the glass substrate was introduced into a vacuum evaporation tank, and the pressure was reduced to 1.0 × 10 ⁻⁴ Pa. Thereafter, a hole injection layer 12, a first hole transport layer 13, a second hole transport layer 14, a light emitting layer 15 and an electron transport layer are formed as an organic compound layer on the glass substrate with an ITO transparent electrode indicated by 11 in FIG. 16 were sequentially formed, and then the cathode layer 17 was formed.
In addition, all the materials which comprise each layer of an organic electroluminescent element were vacuum-deposited by the resistance heating system.
As the hole injection layer 12, HTL-1 was vacuum-deposited with a film thickness of 65 nm at a film formation rate of 0.15 nm / second.
As the first hole transport layer 13, HAT-CN was vacuum-deposited with a film thickness of 0.025 nm / second and a film thickness of 5 nm.
As the second hole transport layer 14, HTL-2 was vacuum-deposited at a film formation rate of 0.15 nm / second to a film thickness of 10 nm.
As the light-emitting layer 15, EML-1 and EML-2 are formed at a film formation rate of 0.18 nm / sec and a film thickness of 25 nm (EML-1 / EML-2 = 95.4 / 4.6 (weight ratio)). Vacuum deposition was performed.
As the electron transport layer 16, C-26 and Liq synthesized in Example-36 of the present invention were formed at a film formation rate of 0.15 nm / second and a film thickness of 30 nm (C-26 / Liq = 50/50 (weight ratio)). ) Co-evaporation).
Finally, a metal mask was arranged so as to be orthogonal to the ITO stripe, and the cathode layer 17 was formed. The cathode layer 17 is formed by vacuum-depositing magnesium / silver (weight ratio 80/20) and silver in this order at film thicknesses of 80 nm and 20 nm at a film formation rate of 0.5 nm / second and 0.2 nm / second, respectively. A two-layer structure was adopted.
Each film thickness was measured with a stylus type film thickness meter (DEKTAK, manufactured by Veeco).
Furthermore, this element was sealed in a nitrogen atmosphere glove box having an oxygen and moisture concentration of 1 ppm or less. For the sealing, a glass sealing cap and the above-described film-forming substrate epoxy type ultraviolet curable resin (manufactured by Nagase ChemteX Corporation) were used.

Evaluation Comparative Example 1
An organic electroluminescent element was produced in the same manner as in Evaluation Example 25 except that ETL-3 synthesized in Synthesis Example 1 was used in place of C-26 in the electron transport layer 16 of Evaluation Example 25.

Evaluation Comparative Example 2
An organic electroluminescent device was produced in the same manner as in Evaluation Example 25 except that ETL-4 synthesized in Synthesis Example 2 was used in place of C-26 in the electron transport layer 16 of Evaluation Example 25.

A direct current was applied to the organic electroluminescent elements produced in Evaluation Example 25, Evaluation Comparative Example 1 and Evaluation Comparative Example 2, and the light emission characteristics were evaluated using a luminance meter of LUMINANCE METER (BM-9) manufactured by TOPCON. did. The initial voltage (V) and the initial current efficiency (cd / A) when a current density of 5 mA / cm ² was passed were measured. Table 3 shows the results of measuring the drive voltage rise when the device was driven for 50 hours when a current density of 40 mA / cm ² was passed and the device was continuously lit. The drive voltage (V) and current efficiency (cd / A) in each evaluation example are shown as relative values when the measured value in Evaluation Comparative Example 2 (ETL-4) is 100.

Compared to Evaluation Comparative Examples 1 and 2, the organic electroluminescent device using the benzothienopyrimidine compound of the present invention has a low driving voltage, excellent current efficiency, and excellent driving voltage rise suppression effect. It was.

The organic electroluminescent device using the benzothienopyrimidine compound of the present invention can be driven for a long time compared to the organic electroluminescent device using the existing material. Further, the benzothienopyrimidine compound of the present invention can be applied to a light emitting host layer and the like in addition to the electron transport layer of this example. Furthermore, the present invention can be applied not only to an element using a fluorescent light emitting material but also to various organic electroluminescent elements using a phosphorescent light emitting material. Further, the benzothienopyrimidine compound of the present invention has high solubility, and it is possible to produce an element using not only a vacuum deposition method but also a coating method. Furthermore, it is useful not only for applications such as flat panel displays but also for illumination applications that require low power consumption.

DESCRIPTION OF SYMBOLS 1 Glass substrate with ITO transparent electrode 2 Hole injection layer 3 First hole transport layer 4 Second hole transport layer 5 Light emitting layer 6 Electron transport layer 7 Electron injection layer 8 Cathode layer 11 Glass substrate with ITO transparent electrode 12 Hole Injection layer 13 First hole transport layer 14 Second hole transport layer 15 Light emitting layer 16 Electron transport layer 17 Cathode layer

Claims

General formula (1)

(Wherein R 1 to R 4 each independently represents an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group) A substituent, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms A hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, methylthio, A group, an ethylthio group, a sulfide group having 3 to 10 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms.
Ar 1 and Ar 2 are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group) A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Is also possible. )
A benzothienopyrimidine compound represented by the formula:
R 1 to R 4 are each independently an aromatic group having 4 to 30 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group) , An optionally substituted alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, or a halogenated alkoxy group having 1 to 3 carbon atoms as a substituent), a hydrogen atom, deuterium The benzothienopyrimidine compound according to claim 1, which is an atom, a fluorine atom, a methyl group, an ethyl group, or an alkyl group having 3 to 10 carbon atoms.
Any one of Ar 1 and Ar 2 is a condensed aromatic group having 7 to 18 carbon atoms (fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, carbon number 3 (Alternatively, it may have an alkoxy group having 1 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms). Or a substituent represented by any one of the following general formulas (2) to (9), the other being an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, ethyl Group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, halogenated alkyl group having 1 to 3 carbon atoms, halogenated alkoxy group having 1 to 3 carbon atoms, or carbon Diaryl of several 10 to 36 The amino group which may have a substituent.) Represents a benzo-thieno pyrimidine compound according to claim 1 or 2.

(In the general formulas (2) to (9), each Ar 3 is independently an aromatic group having 4 to 30 carbon atoms (each independently a fluorine atom, methyl group, ethyl group, 3 to 10 carbon atoms) Alkyl group, methoxy group, ethoxy group, alkoxy group having 3 to 10 carbon atoms, halogenated alkyl group having 1 to 3 carbon atoms, halogenated alkoxy group having 1 to 3 carbon atoms, or diarylamino having 10 to 36 carbon atoms And a methyl group, an ethyl group, a methoxy group, an ethoxy group, a diarylamino group having 10 to 36 carbon atoms, or a hydrogen atom.)
Ar 3 each independently has an aromatic group having 4 to 30 carbon atoms (each independently has a fluorine atom, a methyl group, a methoxy group, or a diarylamino group having 10 to 36 carbon atoms as a substituent). The benzothienopyrimidine compound according to claim 3, which is a methyl group, an ethyl group, a diarylamino group having 10 to 36 carbon atoms, or a hydrogen atom.
In the presence of a metal catalyst or in the presence of a base and a metal catalyst, a compound represented by the general formula (10) or a compound represented by the general formula (11) and a compound represented by the general formula (21) A method for producing a benzothienopyrimidine compound represented by the general formula (1) according to claim 1, wherein a coupling reaction is performed.

(In the general formula,
R 1 to R 4 , Ar 1 , and Ar 2 are the same as in claim 1.
Ar 11 , Ar 12 and Ar 13 are each independently an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group). , An ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms as a substituent. It may be.)
X 1 to X 4 each independently represents an aromatic group having 4 to 66 carbon atoms (each independently a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group or an ethoxy group). A substituent having an alkoxy group having 3 to 10 carbon atoms, a halogenated alkyl group having 1 to 3 carbon atoms, a halogenated alkoxy group having 1 to 3 carbon atoms, or a diarylamino group having 10 to 36 carbon atoms. Or a hydrogen atom, a deuterium atom, a fluorine atom, a methyl group, an ethyl group, an alkyl group having 3 to 10 carbon atoms, a methoxy group, an ethoxy group, an alkoxy group having 3 to 10 carbon atoms, a methylthio group, or an ethylthio group. Represents a sulfide group having 3 to 10 carbon atoms, a diarylamino group having 10 to 36 carbon atoms, or a leaving group.
X 5 to X 6 and Y each independently represent a hydrogen atom, deuterium atom, fluorine atom, methyl group, ethyl group, alkyl group having 3 to 10 carbon atoms, methoxy group, ethoxy group, or 3 to 10 carbon atoms. An alkoxy group, a methylthio group, an ethylthio group, a sulfide group having 3 to 10 carbon atoms, a diarylamino group having 10 to 36 carbon atoms, or a leaving group.
X 7 represents a leaving group.
In the general formula (10), at least one of X 1 to X 6 is a leaving group. )
The compound represented by general formula (12), general formula (13) and general formula (14) is subjected to a ring condensation reaction in the presence of a base or an acid. The manufacturing method of the benzothienopyrimidine compound represented by these.

(In the general formula, R 1 to R 4 , Ar 1 , and Ar 2 are the same as in claim 1. Z represents a leaving group.)
The compound represented by the general formula (25), the general formula (26), and the general formula (14) is subjected to a ring condensation reaction in the presence of a base or an acid. The manufacturing method of the benzothienopyrimidine compound represented by these.

(In the general formula, R 1 to R 4 , Ar 1 , and Ar 2 are the same as in claim 1. Z represents a leaving group.)
The benzothieno represented by the general formula (1) according to claim 1, wherein the compound represented by the general formula (22) and the general formula (14) is subjected to a ring condensation reaction in the presence of a base or an acid. A method for producing a pyrimidine compound.

(In the general formula, R 1 to R 4 , Ar 1 , and Ar 2 are the same as in claim 1).
The general formula (10) according to claim 5, wherein the compound represented by the general formula (15), the general formula (16), and the general formula (17) is subjected to a ring condensation reaction in the presence of a base or an acid. The manufacturing method of the benzothienopyrimidine compound represented by these.

(In the general formula, Ar 11 , Ar 12 , X 1 to X 6 , and Z are the same as in claim 5).
6. The general formula (10) according to claim 5, wherein the compound represented by the general formula (27), the general formula (28) and the general formula (17) is subjected to a ring condensation reaction in the presence of a base or an acid. The manufacturing method of the benzothienopyrimidine compound represented by these.

(In the general formula, Ar 11 , Ar 12 , X 1 to X 6 , and Z are the same as in claim 5).
The benzothieno represented by the general formula (10) according to claim 5, wherein the compound represented by the general formula (23) and the general formula (17) is subjected to a ring condensation reaction in the presence of a base or an acid. A method for producing a pyrimidine compound.

(In the general formula, Ar 11 , Ar 12 , and X 1 to X 6 are the same as in claim 5)
In the general formula (11) according to claim 5, wherein the compound represented by the general formula (20) is reacted with a halogenating agent or a sulfonylating agent in the presence or absence of a base. A method for producing a represented benzothienopyrimidine compound.

(In the general formula, Ar 12 , X 1 to X 4 , X 6 , and X 7 are the same as in claim 5).
A benzothienopyrimidine compound represented by the general formula (10) according to claim 5.

(In the general formula, Ar 11 , Ar 12 , and X 1 to X 6 are the same as in claim 5.)
A benzothienopyrimidine compound represented by the general formula (11) according to claim 5.

(In the general formula, Ar 12 , X 1 to X 4 , X 6 , and X 7 are the same as in claim 5).
An organic electroluminescent device comprising the benzothienopyrimidine compound according to claim 1.
The organic electroluminescence device according to claim 15, comprising a benzothienopyrimidine compound in an electron injection layer, an electron transport layer, or a light emitting layer.
A material for an organic electroluminescent device comprising the benzothienopyrimidine compound according to claim 1.