WO2013069762A1 - 含窒素縮環芳香族基を有する環状アジン化合物とその製造方法、及びそれを構成成分とする有機電界発光素子 - Google Patents
含窒素縮環芳香族基を有する環状アジン化合物とその製造方法、及びそれを構成成分とする有機電界発光素子 Download PDFInfo
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Definitions
- the present invention relates to a cyclic azine compound having a nitrogen-containing fused aromatic group and a method for producing the same.
- the cyclic azine compound of the present invention is useful as a component of a fluorescent or phosphorescent organic electroluminescent device because it has good charge transport properties and forms a stable thin film.
- the present invention further relates to a high-efficiency organic electroluminescent device excellent in driveability and luminescent properties, wherein this cyclic azine compound is used in at least one organic compound layer of the organic electroluminescent device.
- the organic electroluminescent element has a configuration 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 both outer sides of the sandwich structure.
- An organic electroluminescent element is an element that utilizes light emission (fluorescence or phosphorescence) when excitons generated by recombination of holes and electrons injected into a light emitting layer are deactivated, and is applied to a display or the like. ing.
- the cyclic azine compound of the present invention includes both 1,3,5-triazine compounds and pyrimidine compounds.
- This 1,3,5-triazine compound is novel and is characterized by having a nitrogen-containing fused aromatic group directly or via a phenylene group on the phenyl group at the 2-position of the triazine ring.
- the pyrimidine compound is novel and has a nitrogen-containing fused aromatic group directly or via a phenylene group on the phenyl group at the 2-position of the pyrimidine ring.
- Patent Document 1 discloses an example of an organic electroluminescent element containing a 1,3,5-triazine derivative as a constituent component.
- This 1,3,5-triazine derivative is a compound having no nitrogen-containing fused aromatic group and is different from the 1,3,5-triazine derivative of the present invention.
- Patent Document 2 describes a 1,3,5-triazine derivative, which includes a compound containing a 1,3,5-triazine ring and a nitrogen-containing aromatic group. Specific examples are not described.
- 1,3,5-triazine derivatives useful as components of organic electroluminescent devices include triazine derivatives having two phenanthrenyl groups (see, for example, Patent Document 3) and triazine derivatives having two isoquinolinyl groups (For example, refer to Patent Document 4)
- triazine derivatives two nitrogen-containing fused aromatic groups are symmetrically arranged on the phenyl group at the 2-position of the triazine ring via an arylene group.
- Their chemical structure is different from the 1,3,5-triazine compounds of the present invention.
- an electron transport material used for an organic electroluminescence device is inferior in durability to a hole transport material, and a device having the electron transport material has a short lifetime. Few materials with excellent durability give long-lasting elements. Furthermore, a material that can be driven at a low voltage of a device that has durability and leads to low power consumption cannot be found in conventional compounds, and a new material is desired.
- a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms is directly or via a phenylene group on the phenyl group at the 2-position of the triazine ring. It has been found that a cyclic azine compound having a bonded structure has a high glass transition temperature (Tg) and can form a stable amorphous film by vacuum deposition. Furthermore, when an organic electroluminescent device using the above-mentioned cyclic azine compound as an electron transport layer was created, it was found that a device having a long lifetime and reduced power consumption compared to a general-purpose organic electroluminescent device was found. It was. The present invention has been completed based on these findings.
- the present invention relates to the general formula (1)
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom; an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms, X represents a phenylene group, and n represents an integer of 0 to 3.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom; an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group
- two R 1 in B (OR 1 ) 2 may be the same or different
- two R 1 are And can also form a ring containing an oxygen atom and a boron atom.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- X represents a phenylene group, n represents an integer of 0 to 3.
- Z 1 represents a leaving group.
- the compound represented by formula (1) is subjected to a coupling reaction in the presence of a base and a palladium catalyst, or in the presence of a base, a palladium catalyst, and an alkali metal salt.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom, an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group, or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms
- X represents a phenylene group
- n represents an integer of 0 to 3).
- the present invention provides a compound of the general formula (8)
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom, an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group, or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms. 1 represents a leaving group.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- X represents a phenylene group
- n represents an integer of 0 to 3.
- R 1 represents a hydrogen atom, 1 carbon atom.
- two R 1 in B (OR 1 ) 2 may be the same or different, and the two R 1 together contain an oxygen atom and a boron atom;
- a compound represented by (2) can be subjected to a coupling reaction in the presence of a base and a palladium catalyst, or in the presence of a base, a palladium catalyst, and an alkali metal salt.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom, an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group, or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms, X represents a phenylene group, and n represents an integer of 0 to 3.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms, X represents a phenylene group, n represents an integer of 0 to 3, and Z 1 represents a leaving group.
- Ar 2 ′ represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group
- two R's in B (OR 1 ) 2 1 may be the same or different, and two R 1 and a compound represented by the also possible.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 ′ represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group, or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms
- Ar 3 Represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms, X represents a phenylene group, and n represents an integer of 0 to 3.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom, an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group, or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms
- X represents a phenylene group
- n represents an integer of 0 to 3).
- the present invention relates to a light emitting element.
- the cyclic azine compound of the present invention has a high Tg and can form a stable amorphous thin film.
- the cyclic azine compound of the present invention is useful as a material for an organic electroluminescence device, and can be used particularly as an electron transport material.
- An organic electroluminescent device using the cyclic azine compound of the present invention as a constituent component has a long life and a low driving voltage.
- FIG. 3 is a cross-sectional view of an organic electroluminescent element produced in Test Example-1.
- examples of the aromatic hydrocarbon group having 6 to 18 carbon atoms represented by Ar 1 include a phenyl group, a naphthyl group, an anthranyl group, a perylenyl group, and a triphenylenyl group. These may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- the alkyl group as a substituent may be linear, branched or cyclic, and may be further substituted with one or more halogen atoms.
- One or more phenyl groups as a substituent may be substituted with a halogen atom or the like.
- Examples of the phenyl group which is unsubstituted or substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group include a phenyl group, p-tolyl group, m-tolyl group, o-tolyl group, 4-trifluoromethyl Phenyl group, 3-trifluoromethylphenyl group, 2-trifluoromethylphenyl group, 2,4-dimethylphenyl group, 3,5-dimethylphenyl group, 2,6-dimethylphenyl group, mesityl group, 2-ethylphenyl Group, 3-ethylphenyl group, 4-ethylphenyl group, 2,4-diethylphenyl group, 3,5-diethylphenyl group, 2-propylphenyl group, 3-propylphenyl group, 4-propylphenyl group, 2, 4-dipropylphenyl group, 3,5-dipropylphenyl group, 2-isoprop
- a phenyl group, a p-tolyl group, an m-tolyl group, an o-tolyl group, a 2,6-dimethylphenyl group, and 4-tert-butylphenyl are preferable in terms of performance as a material for an organic electroluminescent device.
- Group, 4-biphenylyl group, 3-biphenylyl group, 2-biphenylyl group, 1,1 ′: 4 ′, 1 ′′ -terphenyl-4-yl group, 1,1 ′: 2 ′, 1 ′′ -terphenyl- 4-yl group and 1,1 ′: 3 ′, 1 ′′ -terphenyl-5′-yl group are preferable.
- phenyl group, p-tolyl group, 4-tert-butylphenyl group, 4 -Biphenylyl group and 3-biphenylyl group are more preferable.
- Examples of the naphthyl group which is unsubstituted or substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group include a 1-naphthyl group, 2-naphthyl group, 4-methylnaphthalen-1-yl group, 4- Trifluoromethylnaphthalen-1-yl group, 4-ethylnaphthalen-1-yl group, 4-propylnaphthalen-1-yl group, 4-butylnaphthalen-1-yl group, 4-tert-butylnaphthalen-1-yl Group, 5-methylnaphthalen-1-yl group, 5-trifluoromethylnaphthalen-1-yl group, 5-ethylnaphthalen-1-yl group, 5-propylnaphthalen-1-yl group, 5-butylnaphthalene-1 -Yl group, 5-tert-butylnaphthalen-1-yl group, 6-methylnaphthalen-2-yl group
- 1-naphthyl group 4-methylnaphthalen-1-yl group, 4-tert-butylnaphthalen-1-yl group, 5-methylnaphthalene- 1-yl group, 5-tert-butylnaphthalen-1-yl group, 4-phenylnaphthalen-1-yl group, 2-naphthyl group, 6-methylnaphthalen-2-yl group, 6-tert-butylnaphthalene-2
- a -yl group, a 7-methylnaphthalen-2-yl group or a 7-tert-butylnaphthalen-2-yl group is preferred.
- a 2-naphthyl group is more preferable in terms of easy synthesis.
- Ar 2 is a hydrogen atom; an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or 9 to 15 nitrogen-containing fused-ring aromatic groups are represented.
- Examples of the aromatic hydrocarbon group having 6 to 18 carbon atoms represented by Ar 2 include a phenyl group, a biphenylyl group, a naphthyl group, an anthranyl group, a phenanthrenyl group, a perylenyl group, a triphenylenyl group, and a pyrenyl group. These may be substituted with a phenyl group or a pyridyl group.
- a phenyl group, a biphenylyl group, or a phenanthrenyl group is preferable in terms of good performance as a material for an organic electroluminescent element, and these may be substituted with a phenyl group or a pyridyl group.
- Examples of the phenyl group unsubstituted or substituted with a phenyl group or a pyridyl group, and the biphenylyl group unsubstituted or substituted with a phenyl group or a pyridyl group include, in addition to a phenyl group, a 2- (2-pyridyl) phenyl group 3- (2-pyridyl) phenyl group, 4- (2-pyridyl) phenyl group, 2- (3-pyridyl) phenyl group, 3- (3-pyridyl) phenyl group, 4- (3-pyridyl) phenyl group 2- (4-pyridyl) phenyl group, 3- (4-pyridyl) phenyl group, 4- (4-pyridyl) phenyl group, 2,4-bis (2-pyridyl) phenyl group, 2,6-bis ( 2-pyridyl) phenyl group
- a phenyl group, 4-biphenylyl group, 3-biphenylyl group, 2-biphenylyl group, 3- (2-pyridyl) phenyl group, 4- (2) are preferable in terms of performance as an organic electroluminescent element material.
- -Pyridyl) phenyl group 1,1 ': 4', 1 "-terphenyl-4-yl group, 1,1 ': 2', 1" -terphenyl-4-yl group, 1,1 ': 3 ', 1 "-terphenyl-5'-yl group, 3'-(2-pyridyl) biphenyl-3-yl group, 3 '-(3-pyridyl) biphenyl-3-yl group, 4'-(2- A pyridyl) biphenyl-4-yl group and a 4 ′-(3-pyridyl) biphenyl-4-yl group are preferred, and a phenyl group, 4-biphenylyl group, 3-biphenylyl group, 4- (2- Pyridyl) phenyl group, 4 '-(3-pyridyl) biphe Le-4-yl group is more preferred.
- Examples of a phenanthrenyl group substituted with a pyridyl group, an unsubstituted or triphenylenyl group substituted with a phenyl group or a pyridyl group, and a pyrenyl group unsubstituted or substituted with a phenyl group or a pyridyl group include a 1-naphthyl group 2-naphthyl group, 1-anthranyl group, 2-anthranyl group, 9-anthranyl group, 1-phenanthrenyl group, 2-phenanthrenyl group, 3-phenanthren
- An anthracen-9-yl group is preferred. From the viewpoint of easy synthesis, a 9-anthranyl group and a 9-phenanthrenyl group are more preferable.
- Examples of the nitrogen-containing fused aromatic group having 9 to 15 carbon atoms represented by Ar 2 include a quinolinyl group, an isoquinolinyl group, a phenanthrolinyl group, a naphthyridinyl group, a quinoxanyl group, a phenanthridinyl group, and an acridinyl group. Etc. can be illustrated.
- 2-quinolinyl group, 8-quinolinyl group, 1-isoquinolinyl group, 3-isoquinolinyl group, 4-isoquinolinyl group, 5-isoquinolinyl group, 6-isoquinolinyl group, 7-isoquinolinyl group, 8-isoquinolinyl group 2-naphthyridinyl group, 2-quinoxanyl group, 6-phenanthridinyl group, 9-acridinyl group, 2-phenanthrolinyl group, 3-phenanthrolinyl group, 4-phenanthrolinyl group, 5- A phenanthrolinyl group etc. can be illustrated.
- isoquinolinyl group, phenanthrolinyl group and quinolinyl group are preferable from the viewpoint of good performance as a material for an organic electroluminescence device, and 1-isoquinolinyl group, 3-isoquinolinyl group, 4-isoquinolinyl group and 5-isoquinolinyl group are preferable.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- the nitrogen-containing fused aromatic group having 9 to 15 carbon atoms include those similar to the nitrogen-containing fused aromatic group having 9 to 15 carbon atoms exemplified for Ar 2 .
- an isoquinolinyl group, a phenanthrolinyl group, and a quinolinyl group are preferable in terms of good performance as a material for an organic electroluminescent element.
- n represents an integer of 0 to 3.
- n is preferably 0 to 2, and more preferably 0 to 1.
- Ar 2 and Ar 3 are preferably the same.
- the cyclic azine compound of the present invention can be produced by a method including step 1 represented by the following reaction formula.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom; an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, two R 1 in B (OR 1 ) 2 may be the same or different, and two R 1 are It is also possible to form a ring containing oxygen atoms and boron atoms.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- X represents a phenylene group, and n represents an integer of 0 to 3.
- Z 1 represents a leaving group.
- B (OR 1 ) 2 in the compound represented by the general formula (2) is B (OH) 2 , B (OMe) 2 , B (O i Pr) 2 , B ( Examples thereof include OBu) 2 and B (OPh) 2 .
- Examples of B (OR 1 ) 2 in the case where two R 1 are combined to form a ring containing an oxygen atom and a boron atom include groups represented by the following (I) to (VI): It can be illustrated.
- the group represented by (II) is preferable in that the yield is good.
- the leaving group represented by Z 1 in the compound represented by the general formula (3) is not particularly limited, but for example, a chlorine atom, a bromine atom or an iodine atom can give. Of these, a bromine atom is preferred because of its good yield.
- Compound (3) is, for example, Journal of Organic Chemistry, 2007, 72, 2318-2328, or Org. Biomol. Chem. 2008, No. 6, pages 1320 to 1322, or JP-A-2008-280330 [0061] to [0076].
- Step 1 the compound (2) is reacted with the compound (3) in the presence of a base and a palladium catalyst, optionally a base, a palladium catalyst, and an alkali metal salt, to produce the cyclic azine compound of the present invention.
- the target product can be obtained in high yield by applying reaction conditions of a general Suzuki-Miyaura reaction.
- Examples of the palladium catalyst that can be used in “Step 1” include palladium salts such as palladium chloride, palladium acetate, palladium trifluoroacetate, and palladium nitrate. Further, divalent palladium complexes such as ⁇ -allyl palladium chloride dimer, palladium acetylacetonato, zerovalent palladium complexes such as bis (dibenzylideneacetone) palladium, tris (dibenzylideneacetone) dipalladium, dichlorobis (triphenylphosphine) palladium Palladium complexes having phosphine as a ligand such as tetrakis (triphenylphosphine) palladium and dichloro (1,1′-bis (diphenylphosphino) ferrocene) palladium can be exemplified.
- palladium salts such as palladium chloride, palladium acetate,
- a palladium complex having a tertiary phosphine as a ligand is preferable in terms of a good yield, is easily available, and a palladium complex having triphenylphosphine as a ligand is more preferable in terms of a good yield.
- the amount of the palladium catalyst used in “Step 1” is not particularly limited as long as it is a so-called catalyst amount. However, the molar ratio of the palladium catalyst to the compound (2) is 1: 5 to 1: 200 is preferred.
- the palladium complex which has these tertiary phosphines as a ligand may be prepared in a reaction system by adding a tertiary phosphine or a salt thereof to a palladium salt, a divalent palladium complex or a zerovalent palladium complex. it can.
- Tertiary phosphines include 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 (diphenylphos Fino) methane, 1,2-bis (diphenylphosphino) ethane, 1,3-bis (diphenylphosphino) propane, 1,4-bis (diphenylphosphino) butane, 1,1′-bis (dip
- Triphenylphosphine, 1,1′-bis (diphenylphosphino) ferrocene or tri (tert-butyl) phosphine is preferable because it is easily available. Triphenylphosphine is more preferable in terms of good yield.
- the molar ratio of the tertiary phosphine to the palladium salt or complex compound is preferably 1:10 to 10: 1, and more preferably 1: 2 to 3: 1 in terms of a good yield.
- the base that can be used include sodium hydroxide, potassium hydroxide, sodium carbonate, potassium carbonate, lithium carbonate, cesium carbonate, potassium acetate, sodium acetate, potassium phosphate, and sodium phosphate.
- Sodium carbonate, cesium carbonate, and potassium phosphate are preferable in terms of good rate.
- the molar ratio of the base to the compound (2) is not particularly limited, but is preferably 1: 2 to 100: 1, and more preferably 1: 1 to 10: 1 in terms of a good yield.
- the reaction of “Step 1” can also be carried out in the presence of an alkali metal salt.
- alkali metal salts that can be used include lithium fluoride, lithium chloride, lithium bromide, lithium iodide, sodium fluoride, sodium chloride, sodium bromide, sodium iodide, potassium fluoride, potassium chloride, and potassium bromide.
- Lithium or potassium salt is preferred in terms of points, and lithium chloride or potassium chloride is more preferred in terms of good yield.
- the molar ratio of the alkali metal salt to the compound (2) is not particularly limited, but is preferably 1: 2 to 100: 1, and more preferably 1: 1 to 10: 1 in terms of a good yield.
- the molar ratio of the compound (3) and the compound (2) used in “Step 1” is not particularly limited, but is preferably 1: 1 to 5: 1, and 2: 1 to 3: 1 in terms of good yield. Further preferred.
- the reaction of “Step 1” can be carried out in a solvent.
- the solvent that can be used include water, dimethyl sulfoxide, dimethylformamide, tetrahydrofuran, 1,4-dioxane, toluene, benzene, diethyl ether, ethanol, methanol, and xylene.
- a mixed solvent in which these are appropriately combined may be used. It is desirable to use a mixed solvent of toluene, ethanol and water in terms of good yield.
- the cyclic azine compound of the present invention can be obtained by performing a normal treatment after completion of “Step 1”. If necessary, it may be purified by recrystallization, column chromatography or sublimation.
- Compound (2) which is a raw material of “Step 1” for producing the cyclic azine compound of the present invention, includes, for example, Step 2 shown by the following reaction formula as shown in Reference Examples-6 to 8 described later. It can be manufactured by a method.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom; an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- Z 2 represents a leaving group.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group
- two R 1 in B (OR 1 ) 2 may be the same or different
- two R 1 are It is also possible to form a ring containing oxygen atoms and boron atoms.
- the leaving group represented by Z 2 of the compound represented by the general formula (5) is not particularly limited, but for example, a chlorine atom, a bromine atom or an iodine atom can give. Among these, a bromine atom is preferable in terms of a good yield.
- Step 2 compound (5) in the presence of a base and a palladium catalyst is converted to a compound represented by general formula (6) (hereinafter referred to as borane compound (6)) or a compound represented by general formula (7) (hereinafter referred to as “following”). , Diboron compound (7)) to produce compound (2) used in “Step 1”.
- the reaction conditions disclosed in The Journal of Organic Chemistry, 60, 7508-7510, 1995 or Journal of Organic Chemistry, 65, 164-168, 2000 are applied.
- the target product can be obtained with good yield.
- Examples of the palladium catalyst that can be used in “Step 2" include the same parapalladium salts, divalent palladium complexes, zero-valent palladium complexes, and palladium complexes having phosphine as a ligand exemplified in "Step 1". can do.
- a palladium complex having a tertiary phosphine as a ligand is preferable in terms of a good yield.
- a palladium complex having triphenylphosphine as a ligand is particularly preferable because it is easily available and yield is good.
- the amount of the palladium catalyst used in “Step 2” is not particularly limited as long as it is a so-called catalyst amount. However, the molar ratio of the palladium catalyst to the compound (5) is 1:50 to 1: 10 is preferred.
- a palladium complex having a tertiary phosphine as a ligand can also be prepared in a reaction system by adding a tertiary phosphine to a palladium salt, a divalent palladium complex or a zerovalent palladium complex.
- a tertiary phosphine the tertiary phosphine exemplified in “Step 1” can be exemplified. Among them, triphenylphosphine is preferable because it is easily available.
- the molar ratio of the tertiary phosphine and the palladium salt or complex compound used in “Step 2” is not particularly limited, but is preferably 1:10 to 10: 1, and 1: 2 to 5: 1 in terms of good yield. Is more preferable.
- Step 2 must be carried out in the presence of a base.
- Bases that can be used include 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 can be exemplified, and potassium acetate is desirable in terms of a good yield.
- the molar ratio of base to compound (5) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of good yield.
- the molar ratio of the borane compound (6) or diboron compound (7) and the compound (5) used in “Step 2” is not particularly limited, but is preferably 1: 1 to 5: 1 and is 2 in terms of good yield. 1 to 3: 1 is more preferable.
- the reaction of “Step 2” can be carried out in a solvent.
- the solvent that can be used include water, dimethyl sulfoxide, dimethylformamide, tetrahydrofuran, 1,4-dioxane, toluene, benzene, diethyl ether, ethanol, methanol, and xylene. These may be appropriately combined and used as a mixed solvent. It is desirable to use tetrahydrofuran in terms of a good yield.
- the compound (2) obtained in this step may be isolated after the reaction, but may be subjected to “Step 1” without isolation.
- cyclic azine compound of the present invention can also be produced by a method including step 3 represented by the following reaction formula.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents a hydrogen atom; an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, two R 1 in B (OR 1 ) 2 may be the same or different, and two R 1 are It is also possible to form a ring containing oxygen atoms and boron atoms.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- X represents a phenylene group, and n represents an integer of 0 to 3.
- Z 1 represents a chlorine atom or a bromine atom.
- Step 3 the compound represented by the general formula (8) (hereinafter referred to as the compound (8)) is synthesized in the presence of a base and a palladium catalyst, or in the presence of a base, a palladium catalyst, and an alkali metal salt.
- compound (1) is produced by reacting with a compound represented by 9) (hereinafter referred to as compound (9)).
- Examples of the palladium catalyst that can be used in “Step 3” include the same parapalladium salts, divalent palladium complexes, zerovalent palladium complexes, and palladium complexes having phosphine as a ligand exemplified in “Step 1”. can do.
- a palladium complex having a tertiary phosphine as a ligand is preferable in terms of a good yield, is easily available, and a palladium complex having triphenylphosphine as a ligand is particularly preferable in terms of a good yield.
- the amount of the palladium catalyst used in “Step 3” is not particularly limited as long as it is a so-called catalyst amount, but the molar ratio of the palladium catalyst to the compound (8) is 1:50 to 1: 10 is preferred.
- the palladium complex having tertiary phosphine as a ligand can also be prepared in a reaction system by adding tertiary phosphine to a palladium salt, divalent palladium complex or zerovalent palladium complex.
- a tertiary phosphine the tertiary phosphine exemplified in “Step 1” can be exemplified. Among them, triphenylphosphine is preferable because it is easily available.
- the molar ratio of the tertiary phosphine and the palladium salt or complex compound used in “Step 3” is not particularly limited, but is preferably 1:10 to 10: 1, and 1: 2 to 5: 1 in terms of a good yield. Is more preferable.
- Step 3 must be performed in the presence of a base.
- Bases that can be used include 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 can be exemplified, and potassium carbonate is desirable in terms of a good yield.
- the molar ratio of the base to the compound (8) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of a good yield.
- the alkali metal salt that can be used in “Step 3” is not particularly limited, and examples thereof include lithium fluoride, lithium chloride, lithium bromide, lithium iodide, sodium fluoride, sodium chloride, and sodium bromide.
- Lithium chloride or potassium chloride is desirable in terms of good yield.
- the molar ratio of the alkali metal salt to the compound (8) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of a good yield.
- the molar ratio of the compound (9) and the compound (8) used in “Step 3” is not particularly limited, but is preferably 1: 1 to 5: 1, and is preferably 1: 1 to 3: 1 in terms of good yield. Further preferred.
- the reaction of “Step 3” can be carried out in a solvent.
- the solvent that can be used include water, dimethyl sulfoxide, dimethylformamide, tetrahydrofuran, 1,4-dioxane, toluene, benzene, diethyl ether, ethanol, methanol, and xylene. These may be appropriately combined and used as a mixed solvent. It is desirable to use tetrahydrofuran in terms of a good yield.
- the cyclic azine compound of the present invention can be obtained by performing a normal treatment after completion of “Step 3”. If necessary, it may be purified by recrystallization, column chromatography or sublimation.
- Ar 2 may be substituted with a group other than hydrogen, that is, a phenyl group or a pyridyl group.
- a compound (hereinafter referred to as compound (8 ′)) which is an aromatic hydrocarbon group having 6 to 18 carbon atoms or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms (these groups are represented by “Ar 2 ′ ”) It can be produced by a method including Step 4 shown by the following reaction formula.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 ′ represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group
- two R 1 in B (OR 1 ) 2 may be the same or different
- two R 1 are It is also possible to form a ring containing oxygen atoms and boron atoms.
- X represents a phenylene group
- n represents an integer of 0 to 3.
- Z 1 and Z 2 represent a chlorine atom or a bromine atom.
- Step 4 a compound represented by the general formula (10) (hereinafter referred to as the compound (10)) is converted into a compound represented by the general formula (11) (hereinafter referred to as the compound (11)) in the presence of a base and a palladium catalyst. ) To produce the compound (8) used in “Step 3”.
- Examples of the palladium catalyst that can be used in “Step 4” include the same parapalladium salts, divalent palladium complexes, zerovalent palladium complexes, and palladium complexes having phosphine as a ligand exemplified in “Step 1”. can do.
- a palladium complex having a tertiary phosphine as a ligand is preferable in terms of a good yield.
- a palladium complex having triphenylphosphine as a ligand is particularly preferable because it is easily available and yield is good.
- the amount of the palladium catalyst used in “Step 4” is not particularly limited as long as it is a so-called catalyst amount. However, the molar ratio of the palladium catalyst to the compound (10) is 1:50 to 1: 10 is preferred.
- the palladium complex having tertiary phosphine as a ligand can also be prepared in a reaction system by adding tertiary phosphine to a palladium salt, divalent palladium complex or zerovalent palladium complex.
- tertiary phosphine the tertiary phosphine exemplified in “Step 1” can be exemplified.
- triphenylphosphine or 2-dicyclohexylphosphino-2 ', 4', 6'-triisopropylbiphenyl is preferable because it is easily available.
- the molar ratio of the tertiary phosphine and palladium salt or complex compound used in “Step 4” is not particularly limited, but is preferably 1:10 to 10: 1, and 1: 2 to 5: 1 in terms of good yield. Is more preferable.
- Step 4 must be carried out in the presence of a base.
- Bases that can be used include 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 can be exemplified, and potassium carbonate is desirable in terms of a good yield.
- the molar ratio of the base and the compound (10) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of a good yield.
- the molar ratio of the compound represented by the general formula (11) used in “Step 4” (hereinafter referred to as the compound (11)) and the compound (8) is not particularly limited, but is preferably 1: 1 to 5: 1. A ratio of 1: 1 to 3: 1 is more preferable in terms of a good yield.
- the reaction of “Step 4” can be carried out in a solvent.
- the solvent that can be used include water, dimethyl sulfoxide, dimethylformamide, tetrahydrofuran, 1,4-dioxane, toluene, benzene, diethyl ether, ethanol, methanol, and xylene. These may be appropriately combined and used as a mixed solvent. It is desirable to use toluene or ethanol in terms of a good yield.
- the compound (10) obtained in this step may be isolated after the reaction, but may be subjected to “Step 3” without isolation.
- cyclic azine compound of the present invention can also be produced by a method comprising step 5 represented by the following reaction formula.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- Ar 2 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with a phenyl group or a pyridyl group; or a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, two R 1 in B (OR 1 ) 2 may be the same or different, and two R 1 are It is also possible to form a ring containing oxygen atoms and boron atoms.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- X represents a phenylene group, and n represents an integer of 0 to 3.
- Z 1 represents a chlorine atom or a bromine atom.
- Step 5" the compound represented by the general formula (12) (hereinafter referred to as the compound (12)) is represented by the general formula in the presence of a base and a palladium catalyst, or in the presence of a base, a palladium catalyst, and an alkali metal salt.
- compound (1) is produced by reacting with compound (13) (hereinafter referred to as compound (13)).
- Examples of the palladium catalyst that can be used in “Step 5" include the same parapalladium salts, divalent palladium complexes, zerovalent palladium complexes, and palladium complexes having phosphine as a ligand exemplified in "Step 1". can do.
- a palladium complex having a tertiary phosphine as a ligand is preferable in terms of a good yield.
- a palladium complex having triphenylphosphine as a ligand is particularly preferable because it is easily available and yield is good.
- the amount of the palladium catalyst used in “Step 5” is not particularly limited as long as it is a so-called catalyst amount, but the molar ratio of the palladium catalyst to the compound (12) is 1:50 to 1: 10 is preferred.
- a palladium complex having a tertiary phosphine as a ligand can also be prepared in a reaction system by adding a tertiary phosphine to a palladium salt, a divalent palladium complex or a zerovalent palladium complex.
- a tertiary phosphine the tertiary phosphine exemplified in “Step 1” can be exemplified.
- triphenylphosphine or 2-dicyclohexylphosphino-2 ′, 4 ′, 6′-triisopropylbiphenyl is preferable because it is easily available.
- the molar ratio of the tertiary phosphine and the palladium salt or complex compound used in “Step 5” is not particularly limited, but is preferably 1:10 to 10: 1, and 1: 2 to 5: 1 in terms of good yield. Is more preferable.
- the alkali metal salt that can be used in “Step 5” is not particularly limited, and examples thereof include lithium fluoride, lithium chloride, lithium bromide, lithium iodide, sodium fluoride, sodium chloride, and sodium bromide.
- Lithium chloride or potassium chloride is desirable in terms of good yield.
- the molar ratio of the alkali metal salt to the compound (12) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of a good yield.
- Step 5 must be carried out in the presence of a base.
- Bases that can be used include 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 can be exemplified, and potassium carbonate is desirable in terms of a good yield.
- the molar ratio of the base and the compound (12) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of a good yield.
- the molar ratio of the compound (13) and the compound (12) used in “Step 5” is not particularly limited, but is preferably 1: 1 to 5: 1, and 1: 1 to 3: 1 in terms of good yield. Further preferred.
- the reaction of “Step 5” can be carried out in a solvent.
- the solvent that can be used include water, dimethyl sulfoxide, dimethylformamide, tetrahydrofuran, 1,4-dioxane, toluene, benzene, diethyl ether, ethanol, methanol, xylene, and the like. Also good. It is desirable to use tetrahydrofuran in terms of a good yield.
- the cyclic azine compound of the present invention can be obtained by performing a normal treatment after completion of “Step 5”. If necessary, it may be purified by recrystallization, column chromatography or sublimation.
- the compound (12) which is a raw material of “Step 5” for producing the cyclic azine compound of the present invention can be produced by a method comprising Step 6 shown in the following reaction formula.
- Y represents C—H or a nitrogen atom.
- Ar 1 represents an aromatic hydrocarbon group having 6 to 18 carbon atoms which may be substituted with an alkyl group having 1 to 4 carbon atoms or a phenyl group.
- R 1 represents a hydrogen atom, an alkyl group having 1 to 3 carbon atoms or a phenyl group, two R 1 in B (OR 1 ) 2 may be the same or different, and two R 1 are It is also possible to form a ring containing oxygen atoms and boron atoms.
- Ar 3 represents a nitrogen-containing fused aromatic group having 9 to 15 carbon atoms.
- X represents a phenylene group, and n represents an integer of 0 to 3.
- Z 1 represents a chlorine atom or a bromine atom.
- Step 6 is a step of producing compound (12) used in “step 5” by reacting compound (10) with compound (9) in the presence of a base and a palladium catalyst.
- Examples of the palladium catalyst that can be used in “Step 6" include the same parapalladium salts, divalent palladium complexes, zero-valent palladium complexes, and palladium complexes having phosphine as a ligand exemplified in "Step 1". can do.
- a palladium complex having a tertiary phosphine as a ligand is preferable in terms of a good yield.
- a palladium complex having triphenylphosphine as a ligand is particularly preferable because it is easily available and yield is good.
- the amount of the palladium catalyst used in “Step 6” is not particularly limited as long as it is a so-called catalyst amount. However, the molar ratio of the palladium catalyst to the compound (10) is 1:50 to 1: 10 is preferred.
- the palladium complex having tertiary phosphine as a ligand can also be prepared in a reaction system by adding tertiary phosphine to a palladium salt, divalent palladium complex or zerovalent palladium complex.
- tertiary phosphine the tertiary phosphine exemplified in “Step 1” can be exemplified.
- triphenylphosphine or 2-dicyclohexylphosphino-2 ', 4', 6'-triisopropylbiphenyl is preferable because it is easily available.
- the molar ratio of the tertiary phosphine and the palladium salt or complex compound used in “Step 6” is not particularly limited, but is preferably 1:10 to 10: 1, and 1: 2 to 5: 1 in terms of a good yield. Is more preferable.
- Step 6 must be performed in the presence of a base.
- Bases that can be used include 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 can be exemplified, and potassium carbonate is desirable in terms of a good yield.
- the molar ratio of the base and the compound (12) is not particularly limited, but is preferably 1: 2 to 10: 1, and more preferably 1: 1 to 3: 1 in terms of a good yield.
- the molar ratio of compound (10) to compound (9) used in “Step 6” is not particularly limited, but is preferably 1: 1 to 5: 1, and 1: 1 to 3: 1 is preferable in terms of a good yield. Further preferred.
- the reaction of “Step 6” can be carried out in a solvent.
- the solvent that can be used include water, dimethyl sulfoxide, dimethylformamide, tetrahydrofuran, 1,4-dioxane, toluene, benzene, diethyl ether, ethanol, methanol, xylene, and the like. Also good. It is desirable to use tetrahydrofuran in terms of a good yield.
- the compound (12) obtained in this step may be isolated after the reaction, but may be subjected to “Step 5” without isolation.
- film formation by vacuum vapor deposition is possible.
- 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 reached by a diffusion pump, a turbo molecular pump, a cryopump, etc. that are generally used in consideration of the manufacturing tact time and manufacturing cost of manufacturing the organic electroluminescence device. It is preferably about 1 ⁇ 10 ⁇ 2 to 1 ⁇ 10 ⁇ 5 Pa.
- the deposition rate is preferably 0.005 to 1.0 nm / sec depending on the thickness of the film to be formed.
- the cyclic azine compound of the present invention can be formed by a spin coating method, an ink jet method, a casting method, a dip method or the like using a general-purpose apparatus.
- the obtained red solid was pulverized in an argon stream and added to a 28% aqueous ammonia solution cooled to 0 ° C. The resulting suspension was stirred for an additional hour at room temperature. The precipitated solid was filtered off and washed successively with water and then with methanol. The solid was dried and extracted using a Soxhlet extractor (extraction solvent: chloroform). The extract was allowed to cool, and the precipitated solid was filtered off and dried to give a white powder of 2,4-di (3-biphenylyl) -6- (3,5-dibromophenyl) -1,3,5-triazine ( Yield 2.80 g, 33% yield).
- Example-3 4-Bromo-1,10-phenanthroline (110 mg), 2- [3,5-bis (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenyl under an argon stream ] -4,6-diphenyl-1,3,5-triazine (100 mg), sodium carbonate (75.5 mg) and tetrakis (triphenylphosphine) palladium (16.4 mg) in toluene (5 mL), ethanol (1 mL) and Suspended in water (0.35 mL) and stirred at 100 ° C. for 20 hours.
- Example-4 The same procedure as in Example 3 was performed except that potassium carbonate (98.4 mg) was used instead of sodium carbonate (75.5 mg) and the reaction time was 44 hours, and the target 2- [3,5-bis ( A crude product containing 1,10-phenanthroline-4-yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained.
- the yield estimated from 1 HNMR was 33%.
- Example-5 The same operation as in Example 3 was carried out except that lithium carbonate (52.6 mg) was used instead of sodium carbonate (75.5 mg) and the reaction time was 44 hours, and the target 2- [3,5-bis ( A crude product containing 1,10-phenanthroline-4-yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained.
- the yield estimated from 1 HNMR was 13%.
- Example-6 The same procedure as in Example 3 was performed except that cesium carbonate (232 mg) was used instead of sodium carbonate (75.5 mg) and the reaction time was 44 hours, and the target 2- [3,5-bis (1, 10-Phenanthroline-4-yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained.
- the yield estimated from 1 HNMR was 50%.
- Example-7 The same procedure as in Example 3 was conducted, except that potassium fluoride (41.4 mg) was used instead of sodium carbonate (75.5 mg) and the reaction time was 44 hours, and the target 2- [3,5-bis A crude product containing (1,10-phenanthroline-4-yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained. When the yield was estimated from 1 HNMR, it was 21%.
- Example-8 The same procedure as in Example 3 was carried out except that tripotassium phosphate (151 mg) was used instead of sodium carbonate (75.5 mg) and the reaction time was 44 hours, and the desired 2- [3,5-bis ( A white powder (64 mg, 54%) of 1,10-phenanthroline-4-yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained.
- Example-9 4-Bromo-1,10-phenanthroline (110 mg), 2- [3,5-bis (4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl) phenyl under an argon stream ] -4,6-diphenyl-1,3,5-triazine (100 mg), palladium acetate (3.2 mg), tri (tert-butyl) phosphine tetrafluoroborate (8.3 mg), tripotassium phosphate (151 mg) was suspended in toluene (5 mL), ethanol (1 mL) and water (0.35 mL), and stirred at 100 ° C. for 46 hours.
- Example-10 The same procedure as in Example 9 was carried out except that cesium carbonate (232 mg) was used instead of tripotassium phosphate (151 mg) to obtain the desired 2- [3,5-bis (1,10-phenanthroline-4- Yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained.
- the yield estimated from 1 HNMR was 9%.
- Example-11 The same procedure as in Example 9 was performed, except that 1,1′-bis (diphenylphosphino) ferrocene (7.9 mg) was used instead of tri (tert-butyl) phosphine tetrafluoroborate. A crude product containing 2- [3,5-bis (1,10-phenanthroline-4-yl) phenyl] -4,6-diphenyl-1,3,5-triazine was obtained. The yield estimated from 1 HNMR was 17%.
- a white solid phenyl 359 mg, yield 76%) of phenyl] -4,6-di (4-tert-butyl) -1,3,5-triazine was obtained.
- a white solid yield 1.37 g, yield 91%) of -yl) phenyl] -1,3,5-triazine was obtained.
- Test 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 ozone ultraviolet 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 having a multilayer structure as shown in FIG.
- ITO indium tin oxide
- 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 hole transport layer 3, a light emitting layer 4, a hole blocking layer 5, and an electron transport layer 6 are sequentially formed as an organic compound layer on the glass substrate indicated by 1 in FIG. Thereafter, a cathode layer 7 was formed.
- hole injection layer 2 sublimation-purified phthalocyanine copper (II) was vacuum-deposited with a thickness of 10 nm.
- hole transport layer 3 N, N′-di (naphthylene-1-yl) -N, N′-diphenylbenzidine (NPD) was vacuum-deposited with a film thickness of 30 nm.
- NPD N′-diphenylbenzidine
- hole blocking layer 5 bis (2-methyl-8-quinolinolato)-(1,1′-biphenyl-4-olate) aluminum (BAlq) was vacuum-deposited with a thickness of 5 nm.
- Each organic material was formed into a film by a resistance heating method, and the heated compound was vacuum-deposited at a film formation rate of 0.3 to 0.5 nm / second. Finally, a metal mask was disposed so as to be orthogonal to the ITO stripe, and the cathode layer 7 was formed.
- the cathode layer 7 was made into a two-layer structure by vacuum-depositing lithium fluoride and aluminum with thicknesses of 1.0 nm and 100 nm, respectively. Each film thickness was measured with a stylus type film thickness meter (DEKTAK).
- this element was sealed in a nitrogen atmosphere glove box having an oxygen and moisture concentration of 1 ppm or less. Sealing was performed using a glass sealing cap and the above-described film-forming substrate epoxy type ultraviolet curable resin (manufactured by Nagase ChemteX Corporation).
- a direct current was applied to the produced organic electroluminescent device, and the light emission characteristics were evaluated using a luminance meter of LUMINANCE METER (BM-9) manufactured by TOPCON.
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- the measured values of the manufactured element were a voltage of 6.4 V, a luminance of 1545 cd / m 2 , a current efficiency of 29.5 cd / A, and a power efficiency of 14.5 lm / W.
- the luminance half time of this element when the initial luminance was driven at 4000 cd / m 2 was 272 hours.
- Test example-2 instead of the electron transport layer 6 of Test Example 1, 2- [3,5-bis (1,10-phenanthrolin-2-yl) phenyl] -4,6-diphenyl synthesized in Example 1 of the present invention
- An organic electroluminescent element obtained by vacuum-depositing -1,3,5-triazine with a film thickness of 45 nm was prepared in the same manner as in Test Example-1.
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- Test Example-3 A hole injection layer 2, a hole transport layer 3, a light emitting layer 4 and an electron transport layer 6 were sequentially formed as an organic compound layer on the glass substrate indicated by 1 in FIG. .
- Sublimation-purified phthalocyanine copper (II) is 25 nm as the hole injection layer 2
- N, N′-di (1-naphthyl) -N, N′-diphenylbenzidine (NPD) is 45 nm as the hole transport layer 3.
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- Test Example-4 instead of the electron transport layer 6 of Test Example 3, 2- [4- (isoquinolin-1-yl) -5- (9-phenanthryl) biphenyl-3-yl] obtained in Example-20 of the present invention]
- An organic electroluminescent device in which -4,6-diphenyl-1,3,5-triazine was vacuum-deposited with a thickness of 20 nm was produced in the same manner as in Test Example-3.
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- Test example-5 A hole injection layer 2, a hole transport layer 3, a light emitting layer 4 and an electron transport layer 6 were sequentially formed as an organic compound layer on the glass substrate indicated by 1 in FIG. 1, and then a cathode layer 7 was formed. .
- Sublimation-purified phthalocyanine copper (II) is 25 nm as the hole injection layer 2
- N, N′-di (1-naphthyl) -N, N′-diphenylbenzidine (NPD) is 45 nm as the hole transport layer 3.
- the light emitting layer 4 95: 5% by mass of 3-tert-butyl-9,10-di (naphthyl-2-yl) anthracene (TBADN) and 1,6-bis (N-biphenyl-N-phenyl) pyrene was used. Vacuum deposition was performed at a thickness of 40 nm.
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- the measured values of the fabricated element were a voltage of 7.4 V, a luminance of 1516 cd / m 2 , a current efficiency of 30.3 cd / A, and a power efficiency of 12.9 lm / W.
- the luminance half time of this device when driven at an initial luminance of 4000 cd / m 2 was 244 hours.
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- V voltage
- cd / m 2 luminance
- cd / A current efficiency
- lm / W power efficiency
- the cyclic azine compound of the present invention exhibits good charge injection and transport properties as a material for an organic electroluminescent device. Therefore, the cyclic azine compound of the present invention is useful as a material for an organic electroluminescent device, and can be used particularly as an electron transporting material.
- An organic electroluminescent device using the cyclic azine compound of the present invention as a constituent component has a long life and a low driving voltage.
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Abstract
Description
本発明の環状アジン化合物は、良好な電荷輸送特性を持ち又安定な薄膜を形成することから、蛍光又は燐光有機電界発光素子の構成成分として有用である。本発明は、さらに、この環状アジン化合物を有機電界発光素子の有機化合物層の少なくとも一層に用いた、駆動性及び発光性に優れた高効率有機電界発光素子に関する。
で示される化合物と、一般式(9)
(式中、Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。R1は水素原子、炭素数1~3のアルキル基又はフェニル基を表し、B(OR1)2中の2つのR1は同一又は異なっていてもよく、又、2つのR1は一体となって酸素原子及びホウ素原子を含んで環を形成することもできる。)で示される化合物とを、塩基及びパラジウム触媒の存在下、又は塩基、パラジウム触媒、及びアルカリ金属塩の存在下にカップリング反応させることを特徴とする、一般式(1)
で示される環状アジン化合物の製造方法に関する。
で示される化合物と、一般式(13)
で示される環状アジン化合物の製造方法に関する。
2.正孔注入層
3.正孔輸送層
4.発光層
5.正孔阻止層
6.電子輸送層
7.陰極層
本願発明の環状アジン化合物を表わす一般式(1)において、Ar1で表される炭素数6~18の芳香族炭化水素基としては、フェニル基、ナフチル基、アントラニル基、ペリレニル基又はトリフェニレニル基等を挙げることができ、これらは炭素数1から4のアルキル基又はフェニル基で置換されていてもよい。置換基としてのアルキル基は直鎖、分岐又は環状のいずれでもよく、さらにハロゲン原子等で一個以上置換されていてもよい。また、置換基としてのフェニル基もハロゲン原子等で一個以上置換されていてもよい。
これらのうち、有機電界発光素子用材料としての性能がよい点で、フェニル基、ビフェニリル基、又はフェナントレニル基が好ましく、これらはフェニル基又はピリジル基で置換されていてもよい。
なお、nが0の場合は、Ar2とAr3は同一であることが好ましい。
第三級ホスフィンとパラジウム塩又は錯化合物とのモル比は、1:10~10:1が好ましく、収率がよい点で1:2~3:1がさらに好ましい。
第三級ホスフィンとしては、「工程1」で例示した第三級ホスフィンを例示することができる。中でも入手容易である点で、トリフェニルホスフィンが好ましい。
「工程5」で用いる第三級ホスフィンとパラジウム塩又は錯化合物とのモル比に特に制限はないが、1:10~10:1が好ましく、収率がよい点で1:2~5:1がさらに好ましい。
また、本発明の環状アジン化合物は、汎用の装置を用いたスピンコート法、インクジェット法、キャスト法又はディップ法等による成膜も可能である。
13C-NMR(CDCl3):δ123.4,128.8,129.1,130.6,133.0,135.7,137.6,139.8,169.3,172.0.
13C-NMR(CDCl3):δ22.5(CH3×2),123.3(quart.×2),129,1(CH×4),129.5(CH×4),130.6(CH×2),133.1(quart.×2),137.4(CH),140.0(quart.),143.6(quart.×2),169.0(quart.),171.8(quart.×2).
13C-NMR(CDCl3):δ31.2,35.1,123.3,125.7,128.9,130.5,133.1,137.4,140.0,156.5,169.0,171.8.
13C-NMR(CDCl3):δ123.4,127.4,127.7,127.8,128.1,130.7,131.7,136.2,137.7,139.7,140.7,141.9,169.4,172.0.
アルゴン気流下、4-ブロモ-1,10-フェナントロリン(110mg)、2-[3,5-ビス(4,4,5,5-テトラメチル-1,3,2-ジオキサボロラン-2-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジン(100mg)、炭酸ナトリウム(75.5mg)及びテトラキス(トリフェニルホスフィン)パラジウム(16.4mg)をトルエン(5mL)、エタノール(1mL)及び水(0.35mL)に懸濁し、100℃で20時間撹拌した。反応混合物を放冷後、低沸分を減圧留去し、残渣に水を加え固体をろ別した。得られた固体をメタノールで洗浄し、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、38%であった。
炭酸ナトリウム(75.5mg)に変え炭酸カリウム(98.4mg)を用い、反応時間を44時間とした以外は実施例-3と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、33%であった。
炭酸ナトリウム(75.5mg)に変え炭酸リチウム(52.6mg)を用い、反応時間を44時間とした以外は実施例-3と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、13%であった。
炭酸ナトリウム(75.5mg)に変え炭酸セシウム(232mg)を用い、反応時間を44時間とした以外は実施例-3と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、50%であった。
炭酸ナトリウム(75.5mg)に変えフッ化カリウム(41.4mg)を用い、反応時間を44時間とした以外は実施例-3と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、21%であった。
炭酸ナトリウム(75.5mg)に変えリン酸三カリウム(151mg)を用い、反応時間を44時間とした以外は実施例-3と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンの白色粉末(64mg,54%)を得た。
アルゴン気流下、4-ブロモ-1,10-フェナントロリン(110mg)、2-[3,5-ビス(4,4,5,5-テトラメチル-1,3,2-ジオキサボロラン-2-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジン(100mg)、酢酸パラジウム(3.2mg)、トリ(tert-ブチル)ホスフィン・テトラフルオロホウ酸塩(8.3mg)、リン酸三カリウム(151mg)をトルエン(5mL)及びエタノール(1mL)及び水(0.35mL)に懸濁し、100℃で46時間撹拌した。反応混合物を放冷後、低沸分を減圧留去し、残渣に水を加え固体をろ別した。この固体をメタノールで洗浄し、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、13%であった。
リン酸三カリウム(151mg)に変え、炭酸セシウム(232mg)を用いた以外は実施例-9と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、9%であった。
トリ(tert-ブチル)ホスフィン・テトラフルオロホウ酸塩に変え、1,1’-ビス(ジフェニルホスフィノ)フェロセン(7.9mg)を用いた以外は実施例-9と同様の操作を行い、目的の2-[3,5-ビス(1,10-フェナントロリン-4-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを含む粗生成物を得た。1HNMRから収率を見積もったところ、17%であった。
基板として、2mm幅の酸化インジウム-スズ(ITO)膜がストライプ状にパターンされたITO透明電極付きガラス基板を用いた。この基板をイソプロピルアルコールで洗浄した後、オゾン紫外線洗浄にて表面処理を行った。洗浄後の基板に、真空蒸着法で各層の真空蒸着を行い、断面図を図1に示すような多層構造を有する発光面積4mm2有機電界発光素子を作製した。
最後に、ITOストライプと直交するようにメタルマスクを配し、陰極層7を成膜した。陰極層7は、フッ化リチウムとアルミニウムをそれぞれ1.0nmと100nmの膜厚で真空蒸着し、2層構造とした。それぞれの膜厚は、触針式膜厚測定計(DEKTAK)で測定した。
作製した素子の測定値は、電圧6.4V、輝度1545cd/m2、電流効率29.5cd/A、電力効率14.5lm/Wであった。また、初期輝度を4000cd/m2で駆動したときのこの素子の輝度半減時間は、272時間であった。
試験例-1の電子輸送層6に代えて、本発明の実施例-1で合成した2-[3,5-ビス(1,10-フェナントロリン-2-イル)フェニル]-4,6-ジフェニル-1,3,5-トリアジンを45nmの膜厚で真空蒸着した有機電界発光素子を、試験例-1と同様に作製した。
作製した素子の測定値は、電圧6.2V、輝度1364cd/m2、電流効率30.3cd/A、電力効率15.3lm/Wであった。また、初期輝度を4000cd/m2で駆動したときのこの素子の輝度半減時間は、253時間であった。
図1の1で示す前記ガラス基板上に有機化合物層として、正孔注入層2、正孔輸送層3、発光層4及び電子輸送層6を順次成膜し、その後陰極層7を成膜した。
正孔注入層2として、昇華精製したフタロシアニン銅(II)を25nm、正孔輸送層3として、N,N’-ジ(1-ナフチル)-N,N’-ジフェニルベンジジン(NPD)を45nm、発光層4として、3-tert-ブチル-9,10-ジ(ナフチル-2-イル)アントラセン(TBADN)と4,4’-ビス[4-(ジ-p-トリルアミノ)フェニルエテン-1-イル]ビフェニル(DPAVBi)を93:7質量%の割合で40nmの膜厚で真空蒸着した。電子輸送層6としては、実施例-19で得られた2-[4-(イソキノリン-1-イル)-1,1’;3’,1”-ターフェニル-5’-イル]-4,6-ジフェニル-1,3,5-トリアジンを20nmにした以外は、試験例-1と同様の方法で有機電界発光素子を作製した。
試験例-3の電子輸送層6に代えて、本発明の実施例-20で得られた2-[4-(イソキノリン-1-イル)-5-(9-フェナントリル)ビフェニル-3-イル]-4,6-ジフェニル-1,3,5-トリアジンを20nmの膜厚で真空蒸着した有機電界発光素子を、試験例-3と同様に作製した。
図1の1で示す前記ガラス基板上に有機化合物層として、正孔注入層2、正孔輸送層3、発光層4及び電子輸送層6を順次成膜し、その後陰極層7を成膜した。正孔注入層2として、昇華精製したフタロシアニン銅(II)を25nm、正孔輸送層3として、N,N’-ジ(1-ナフチル)-N,N’-ジフェニルベンジジン(NPD)を45nm、発光層4として、3-tert-ブチル-9,10-ジ(ナフチル-2-イル)アントラセン(TBADN)と1,6-ビス(N-ビフェニル-N-フェニル)ピレンを95:5質量%の割合で40nmの膜厚で真空蒸着した。電子輸送層6としては、実施例-24で得られた2-[4-(イソキノリン-1-イル)-1,1’;3’,1’’;4’’,1’’’-クアテルフェニル-5’-イル]-4,6-ジフェニル-1,3,5-トリアジンを20nmにした以外は、試験例-1と同様の方法で有機電界発光素子を作製した。
試験例-1の電子輸送層6に代えて、既存材料のトリス(8-キノリノラト)アルミニウム(III)(Alq)を45nmの膜厚で真空蒸着した有機電界発光素子を、試験例1と同様に作製した。
試験例-3の電子輸送層6に代えて、既存材料のトリス(8-キノリノラト)アルミニウム(III)(Alq)を20nmの膜厚で真空蒸着した有機電界発光素子を、試験例3と同様に作製した。
試験例-5の電子輸送層6に代えて、2,4-ジフェニル-6-[4,4’’ -ジ-(2-ピリジル) -[1,1’:3,1’’] -テルフェニル-5’-イル-1,3,5-トリアジンを20nmの膜厚で真空蒸着した有機電界発光素子を、試験例3と同様に作製した。
本発明の環状アジン化合物を構成成分として用いてなる有機電界発光素子は、寿命が長く、また、駆動電圧が低いという特長を有する。
Claims (15)
- Ar3が、キノリニル基、イソキノリニル基、フェナントロリニル基、ナフチリジニル基、キノキサニル基、フェナントリジニル基、又はアクリジニル基である請求項1に記載の環状アジン化合物。
- Ar3が、フェナントロリニル基、イソキノリニル基又はキノリニル基である請求項1又は請求項2に記載の環状アジン化合物。
- Ar2が、水素原子、フェニル基又はピリジル基で置換されていてもよいフェニル基、フェニル基又はピリジル基で置換されていてもよいビフェニリル基、フェニル基又はピリジル基で置換されていてもよいナフチル基、フェニル基又はピリジル基で置換されていてもよいアントラニル基、フェニル基又はピリジル基で置換されていてもよいペリレニル基、フェニル基又はピリジル基で置換されていてもよいフェナントレニル基、フェニル基又はピリジル基で置換されていてもよいトリフェニレニル基、フェニル基又はピリジル基で置換されていてもよいピレニル基、キノリニル基、イソキノリニル基、フェナントロリニル基、ナフチリジニル基、キノキサニル基、フェナントリジニル基、又はアクリジニル基である請求項1乃至請求項3のいずれか一項に記載の環状アジン化合物。
- Ar2が、水素原子、フェニル基、4-ビフェニリル基、3-ビフェニリル基、2-ビフェニリル基、3-(2-ピリジル)フェニル基、4-(2-ピリジル)フェニル基、1,1’:4’,1”-ターフェニル-4-イル基、1,1’:2’,1”-ターフェニル-4-イル基、1,1’:3’,1”-ターフェニル-5’-イル基、3’-(2-ピリジル)ビフェニル-3-イル基、3’-(3-ピリジル)ビフェニル-3-イル基、4’-(2-ピリジル)ビフェニル-4-イル基、4’-(3-ピリジル)ビフェニル-4-イル基、2-ナフチル基、9-アントラニル基、9-フェナントレニル基、8-(2-ピリジル)ナフタレン-2-イル基、10-(2-ピリジル)アントラセン-9-イル基、フェナントロリニル基、イソキノリニル基、又はキノリニル基である請求項1乃至請求項4のいずれか一項に記載の環状アジン化合物。
- Ar1が、フェニル基、p-トリル基、m-トリル基、o-トリル基、2,6-ジメチルフェニル基、4-tert-ブチルフェニル基、4-ビフェニリル基、3-ビフェニリル基、2-ビフェニリル基、1,1’:4’,1”-ターフェニル-4-イル基、1,1’:2’,1”-ターフェニル-4-イル基、1,1’:3’,1”-ターフェニル-5’-イル基、1-ナフチル基、4-メチルナフタレン-1-イル基、4-tert-ブチルナフタレン-1-イル基、5-メチルナフタレン-1-イル基、5-tert-ブチルナフタレン-1-イル基、4-フェニルナフタレン-1-イル基、2-ナフチル基、6-メチルナフタレン-2-イル基、6-tert-ブチルナフタレン-2-イル基、7-メチルナフタレン-2-イル基、又は7-tert-ブチルナフタレン-2-イル基である請求項1乃至請求項5のいずれか一項に記載の環状アジン化合物。
- Ar1が、フェニル基、p-トリル基、4-tert-ブチルフェニル基、4-ビフェニリル基、3-ビフェニリル基、又は2-ナフチル基である請求項1乃至請求項6のいずれか一項に記載の環状アジン化合物。
- nが0、1又は2である請求項1乃至請求項7のいずれか一項に記載の環状アジン化合物。
- Yが窒素原子である請求項1乃至請求項8のいずれか一項に記載の環状アジン化合物。
- YがC-Hである請求項1乃至請求項8のいずれか一項に記載の環状アジン化合物。
- 一般式(2)
(式中、YはC-H、又は窒素原子を表す。Ar1は、炭素数1から4のアルキル基又はフェニル基で置換されていてもよい炭素数6~18の芳香族炭化水素基を表す。Ar2は、水素原子;フェニル基又はピリジル基で置換されていてもよい炭素数6~18の芳香族炭化水素基;又は炭素数9~15の含窒素縮環芳香族基を表す。R1は、水素原子、炭素数1~3のアルキル基又はフェニル基を表し、B(OR1)2中の2つのR1は同一又は異なっていてもよく、又、2つのR1は一体となって酸素原子及びホウ素原子を含んで環を形成することもできる。)
で示される化合物と、一般式(3)
(式中、Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。Z1は脱離基を表す。)
で示される化合物とを、塩基及びパラジウム触媒の存在下、又は塩基、パラジウム触媒及びアルカリ金属塩の存在下にカップリング反応させることを特徴とする、一般式(1)
(式中、YはC-H、又は窒素原子を表す。Ar1は、炭素数1から4のアルキル基又はフェニル基で置換されていてもよい炭素数6~18の芳香族炭化水素基を表す。Ar2は水素原子;フェニル基又はピリジル基で置換されていてもよい炭素数6~18の芳香族炭化水素基;又は炭素数9~15の含窒素縮環芳香族基を表す。Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。)
で示される環状アジン化合物の製造方法。 - 一般式(8)
(式中、YはC-H、又は窒素原子を表す。Ar1は、炭素数1から4のアルキル基又はフェニル基で置換されていてもよい炭素数6~18の芳香族炭化水素基を表す。Ar2は水素原子;フェニル基又はピリジル基で置換されていてもよい炭素数6~18の芳香族炭化水素基;又は炭素数9~15の含窒素縮環芳香族基を表す。Z1は、塩素原子又は臭素原子を表す。)
で示される化合物と、一般式(9)
(式中、Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。R1は水素原子、炭素数1~3のアルキル基又はフェニル基を表し、B(OR1)2の2つのR1は同一又は異なっていてもよく、又、2つのR1は一体となって酸素原子及びホウ素原子を含んで環を形成することもできる。)で示される化合物とを、塩基及びパラジウム触媒の存在下、又は塩基、パラジウム触媒、及びアルカリ金属塩の存在下にカップリング反応させることを特徴とする、一般式(1)
(式中、YはC-H、又は窒素原子を表す。Ar1は、炭素数1から4のアルキル基又はフェニル基で置換されていてもよい炭素数6~18の芳香族炭化水素基を表す。Ar2は水素原子;フェニル基又はピリジル基で置換されていてもよい炭素数6~18の芳香族炭化水素基;又は炭素数9~15の含窒素縮環芳香族基を表す。Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。)
で示される環状アジン化合物の製造方法。 - 一般式(12)
(式中、YはC-H、又は窒素原子を表す。Ar1は、炭素数1から4のアルキル基又はフェニル基で置換されていてもよい炭素数6~18の芳香族炭化水素基を表す。Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。Z1は、塩素原子又は臭素原子を表す。)
で示される化合物と、一般式(13)
(式中、Ar2’はフェニル基又はピリジル基で置換されていてもよい炭素数6~18の芳香族炭化水素基;又は炭素数9~15の含窒素縮環芳香族基を表す。R1は水素原子、炭素数1~3のアルキル基又はフェニル基を表す。R1は水素原子、炭素数1~3のアルキル基又はフェニル基を表し、B(OR1)2の2つのR1は同一又は異なっていてもよく、又、2つのR1は一体となって酸素原子及びホウ素原子を含んで環を形成することもできる。)で示される化合物とを、塩基及びパラジウム触媒の存在下、又は塩基、パラジウム触媒、及びアルカリ金属塩の存在下にカップリング反応させることを特徴とする、一般式(1’)
(式中、YはC-H、又は窒素原子を表す。Ar1は、炭素数1から4のアルキル基又はフェニル基で置換されていてもよい炭素数6~18の芳香族炭化水素基を表す。Ar2’はフェニル基又はピリジル基で置換されていてもよい炭素数6~18の芳香族炭化水素基;又は炭素数9~15の含窒素縮環芳香族基を表す。Ar3は、炭素数9~15の含窒素縮環芳香族基を表す。Xはフェニレン基を表し、nは0~3の整数を表す。)
で示される環状アジン化合物の製造方法。
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Also Published As
Publication number | Publication date |
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JP6034146B2 (ja) | 2016-11-30 |
EP2778160A1 (en) | 2014-09-17 |
US9252368B2 (en) | 2016-02-02 |
TWI609862B (zh) | 2018-01-01 |
TW201339149A (zh) | 2013-10-01 |
KR102003090B1 (ko) | 2019-10-01 |
EP2778160A4 (en) | 2015-11-18 |
US20140330013A1 (en) | 2014-11-06 |
EP2778160B1 (en) | 2018-01-10 |
CN104039773B (zh) | 2016-08-24 |
JP2014111548A (ja) | 2014-06-19 |
CN104039773A (zh) | 2014-09-10 |
KR20140091049A (ko) | 2014-07-18 |
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