KR102398016B1 - Novel compound and organic light emitting device comprising the same - Google Patents

Abstract

The present invention provides a novel compound and an organic light emitting device using the same.

Description

Novel compound and organic light emitting device comprising the same

The present invention relates to a novel compound and an organic light emitting device comprising the same.

In general, the organic light emitting phenomenon refers to a phenomenon in which electric energy is converted into light energy using an organic material. The organic light emitting device using the organic light emitting phenomenon has a wide viewing angle, excellent contrast, fast response time, and excellent luminance, driving voltage, and response speed characteristics, and thus many studies are being conducted.

An organic light emitting device generally has a structure including an anode and a cathode and an organic material layer between the anode and the cathode. The organic material layer is often made of a multi-layer structure composed of different materials in order to increase the efficiency and stability of the organic light-emitting device, for example, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, it may be made of an electron injection layer, etc. In the structure of the organic light emitting device, when a voltage is applied between the two electrodes, holes are injected into the organic material layer from the anode and electrons from the cathode are injected into the organic material layer. When the injected holes and electrons meet, excitons are formed, and the excitons When it falls back to the ground state, it lights up.

The development of new materials for organic materials used in organic light emitting devices as described above is continuously required.

Korean Patent Publication No. 10-2000-0051826

The present invention relates to a novel compound and an organic light emitting device comprising the same.

The present invention provides a compound represented by the following formula (1):

[Formula 1]

In Formula 1,

Y ₁ To Y ₉ are each independently N, CH, CD, or C-L'-R, provided that at least one of Y ₁ To Y ₉ is N,

Here, L' is a single bond; Or a substituted or unsubstituted C _6-60 arylene,

R is substituted or unsubstituted C _6-60 aryl; Or substituted or unsubstituted C _2-60 heteroaryl containing any one or more heteroatoms selected from the group consisting of N, O and S,

L is a single bond; substituted or unsubstituted C _6-60 arylene; Or substituted or unsubstituted C _2-60 heteroarylene containing any one or more heteroatoms selected from the group consisting of N, O and S,

L ₁ and L ₂ are each independently, a single bond; Or a substituted or unsubstituted C _6-60 arylene,

Ar ₁ and Ar ₂ are each independently, substituted or unsubstituted C _6-60 aryl; or C _2-60 heteroaryl including any one or more heteroatoms selected from the group consisting of substituted or unsubstituted N, O and S.

In addition, the present invention is a first electrode; a second electrode provided to face the first electrode; and an emission layer provided between the first electrode and the second electrode, wherein the emission layer includes the compound represented by Formula 1 above.

The compound represented by Chemical Formula 1 described above may be used as a material for the organic material layer of the organic light emitting device to improve efficiency, low driving voltage, and/or lifespan characteristics of the organic light emitting device.

FIG. 1 shows an example of an organic light emitting device including a substrate 1 , an anode 2 , a light emitting layer 3 , and a cathode 4 .
2 is a substrate (1), an anode (2), a hole injection layer (5), a hole transport layer (6), an electron blocking layer (7), a light emitting layer (3), a hole blocking layer (8), an electron injection and transport layer ( 9) and an example of an organic light emitting device including a cathode 4 are shown.

Hereinafter, it will be described in more detail to help the understanding of the present invention.

(Definition of Terms)

및

는 다른 치환기에 연결되는 결합을 의미하고, “D”는 중수소를 의미한다.In this specification,

and

means a bond connected to another substituent, and “D” means deuterium.

As used herein, the term "substituted or unsubstituted" refers to deuterium; halogen group; cyano group; nitro group; hydroxyl group; carbonyl group; ester group; imid; amino group; a phosphine oxide group; alkoxy group; aryloxy group; alkyl thiooxy group; arylthioxy group; an alkyl sulfoxy group; arylsulfoxy group; silyl group; boron group; an alkyl group; cycloalkyl group; alkenyl group; aryl group; aralkyl group; aralkenyl group; an alkylaryl group; an alkylamine group; an aralkylamine group; heteroarylamine group; arylamine group; an arylphosphine group; Or substituted or unsubstituted with one or more substituents selected from the group consisting of heteroaryl containing one or more of N, O and S atoms, or substituted or unsubstituted with a substituent to which two or more of the above-exemplified substituents are connected means that For example, "a substituent in which two or more substituents are connected" may be a biphenyl group. That is, the biphenyl group may be an aryl group or may be interpreted as a substituent in which two phenyl groups are connected.

In the present specification, the number of carbon atoms in the carbonyl group is not particularly limited, but preferably 1 to 40 carbon atoms. Specifically, it may be a group having the following structure, but is not limited thereto.

In the present specification, in the ester group, oxygen of the ester group may be substituted with a linear, branched or cyclic alkyl group having 1 to 25 carbon atoms or an aryl group having 6 to 25 carbon atoms. Specifically, it may be a group of the following structural formula, but is not limited thereto.

In the present specification, the number of carbon atoms of the imide group is not particularly limited, but it is preferably from 1 to 25 carbon atoms. Specifically, it may be a group having the following structure, but is not limited thereto.

In the present specification, the silyl group specifically includes a trimethylsilyl group, a triethylsilyl group, a t-butyldimethylsilyl group, a vinyldimethylsilyl group, a propyldimethylsilyl group, a triphenylsilyl group, a diphenylsilyl group, a phenylsilyl group, and the like. However, the present invention is not limited thereto.

In the present specification, the boron group specifically includes, but is not limited to, a trimethylboron group, a triethylboron group, a t-butyldimethylboron group, a triphenylboron group, a phenylboron group, and the like.

In the present specification, examples of the halogen group include fluorine, chlorine, bromine or iodine.

In the present specification, the alkyl group may be linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 1 to 40. According to an exemplary embodiment, the number of carbon atoms in the alkyl group is 1 to 20. According to another exemplary embodiment, the number of carbon atoms in the alkyl group is 1 to 10. According to another exemplary embodiment, the alkyl group has 1 to 6 carbon atoms. Specific examples of the alkyl group include methyl, ethyl, propyl, n-propyl, isopropyl, butyl, n-butyl, isobutyl, tert-butyl, sec-butyl, 1-methyl-butyl, 1-ethyl-butyl, pentyl, n -pentyl, isopentyl, neopentyl, tert-pentyl, hexyl, n-hexyl, 1-methylpentyl, 2-methylpentyl, 4-methyl-2-pentyl, 3,3-dimethylbutyl, 2-ethylbutyl, heptyl , n-heptyl, 1-methylhexyl, cyclopentylmethyl, cyclohexylmethyl, octyl, n-octyl, tert-octyl, 1-methylheptyl, 2-ethylhexyl, 2-propylpentyl, n-nonyl, 2,2 -Dimethylheptyl, 1-ethyl-propyl, 1,1-dimethyl-propyl, isohexyl, 2-methylpentyl, 4-methylhexyl, 5-methylhexyl and the like, but are not limited thereto.

In the present specification, the alkenyl group may be linear or branched, and the number of carbon atoms is not particularly limited, but is preferably 2 to 40. According to an exemplary embodiment, the carbon number of the alkenyl group is 2 to 20. According to another exemplary embodiment, the carbon number of the alkenyl group is 2 to 10. According to another exemplary embodiment, the alkenyl group has 2 to 6 carbon atoms. Specific examples include vinyl, 1-propenyl, isopropenyl, 1-butenyl, 2-butenyl, 3-butenyl, 1-pentenyl, 2-pentenyl, 3-pentenyl, 3-methyl-1- Butenyl, 1,3-butadienyl, allyl, 1-phenylvinyl-1-yl, 2-phenylvinyl-1-yl, 2,2-diphenylvinyl-1-yl, 2-phenyl-2-( Naphthyl-1-yl)vinyl-1-yl, 2,2-bis(diphenyl-1-yl)vinyl-1-yl, stilbenyl group, styrenyl group, and the like, but are not limited thereto.

In the present specification, the cycloalkyl group is not particularly limited, but preferably has 3 to 60 carbon atoms, and according to an exemplary embodiment, the cycloalkyl group has 3 to 30 carbon atoms. According to another exemplary embodiment, the carbon number of the cycloalkyl group is 3 to 20. According to another exemplary embodiment, the cycloalkyl group has 3 to 6 carbon atoms. Specifically, cyclopropyl, cyclobutyl, cyclopentyl, 3-methylcyclopentyl, 2,3-dimethylcyclopentyl, cyclohexyl, 3-methylcyclohexyl, 4-methylcyclohexyl, 2,3-dimethylcyclohexyl, 3, 4,5-trimethylcyclohexyl, 4-tert-butylcyclohexyl, cycloheptyl, cyclooctyl, and the like, but is not limited thereto.

In the present specification, the aryl group is not particularly limited, but preferably has 6 to 60 carbon atoms, and may be a monocyclic aryl group or a polycyclic aryl group. According to an exemplary embodiment, the carbon number of the aryl group is 6 to 30. According to an exemplary embodiment, the carbon number of the aryl group is 6 to 20. The aryl group may be a monocyclic aryl group, such as a phenyl group, a biphenyl group, or a terphenyl group, but is not limited thereto. The polycyclic aryl group may be a naphthyl group, an anthracenyl group, a phenanthryl group, a pyrenyl group, a perylenyl group, a chrysenyl group, a fluorenyl group, and the like, but is not limited thereto.

등이 될 수 있다. 다만, 이에 한정되는 것은 아니다.In the present specification, the fluorenyl group may be substituted, and two substituents may be bonded to each other to form a spiro structure. When the fluorenyl group is substituted,

etc. can be However, the present invention is not limited thereto.

In the present specification, heteroaryl is a heteroaryl containing at least one of O, N, Si and S as a heterogeneous element, and the number of carbon atoms is not particularly limited, but is preferably from 2 to 60 carbon atoms. Examples of heteroaryl include xanthene, thioxanthen, thiophene, furan, pyrrole, imidazole, thiazole, oxazole, oxadiazole, triazole, pyridyl, bipyridyl, Pyrimidyl group, triazine group, acridyl group, pyridazine group, pyrazinyl group, quinolinyl group, quinazoline group, quinoxalinyl group, phthalazinyl group, pyrido pyrimidinyl group, pyrido pyrazinyl group, pyrazino Pyrazinyl group, isoquinoline group, indole group, carbazole group, benzoxazole group, benzoimidazole group, benzothiazole group, benzocarbazole group, benzothiophene group, dibenzothiophene group, benzofuranyl group, phenanthroline group ( phenanthroline), an isoxazolyl group, a thiadiazolyl group, a phenothiazinyl group, and a dibenzofuranyl group, but are not limited thereto.

In the present specification, the aryl group in the aralkyl group, aralkenyl group, alkylaryl group, arylamine group, and arylsilyl group is the same as the above-described aryl group. In the present specification, the alkyl group among the aralkyl group, the alkylaryl group, and the alkylamine group is the same as the example of the above-described alkyl group. In the present specification, as for heteroaryl among heteroarylamines, the description regarding heteroaryl described above may be applied. In the present specification, the alkenyl group among the aralkenyl groups is the same as the above-described examples of the alkenyl group. In the present specification, the description of the above-described aryl group may be applied, except that arylene is a divalent group. In the present specification, the description of the above-described heteroaryl may be applied, except that heteroarylene is a divalent group. In the present specification, the hydrocarbon ring is not a monovalent group, and the description of the above-described aryl group or cycloalkyl group may be applied, except that it is formed by combining two substituents. In the present specification, the heterocyclic group is not a monovalent group, and the description regarding heteroaryl described above may be applied, except that it is formed by combining two substituents.

As used herein, the term "deuterated or substituted with deuterium" means that at least one available hydrogen in each formula or substituent is substituted with deuterium. As an example, at least 10% deuterated in each formula means that at least 10% of the available hydrogens have been replaced by deuterium. As an example, each formula may be at least 20%, at least 30%, at least 40%, at least 50%, at least 60%, at least 70%, at least 80%, at least 90%, or 100% deuterated.

(compound)

The present invention provides a compound represented by Formula 1 above.

The compound represented by Formula 1 has a structure in which benzonaphthofuran has a triazinyl group at position 1 and at least one of carbon atoms at the remaining positions is substituted with a “nitrogen atom”.

These compounds may exhibit superior energy transfer properties and stability compared to compounds in which the triazinyl group is substituted at positions other than No. 1 and compounds not substituted with triazinyl groups. Accordingly, the organic light emitting device employing the compound has the same luminous efficiency and lifetime as compared to organic light emitting devices employing a compound in which the triazinyl group is substituted at a position other than No. 1 and a compound not substituted with a triazinyl group. It is possible to exhibit improved device characteristics.

In one embodiment, one of Y ₁ to Y ₉ may be N.

Specifically, one of Y ₁ to Y ₉ is N, and the others are each independently CH, or CD; or

One of Y ₁ to Y ₉ may be N, and one of the others may be C-L′-R, and the others may independently be CH or CD.

More specifically,

one of Y ₁ to Y ₉ is N and all others are CH;

one of Y ₁ to Y ₉ is N and all others are CD;

one of Y ₁ to Y ₉ is N, the other is C-L′-R, and all others are CH; or

One of Y may be N, the other may be C-L'-R, and all others may be C-D.

for example,

Y ₁ is N, Y ₂ , Y ₃ , Y ₄ , Y ₅ , Y ₆ , Y ₇ , Y ₈ and Y ₉ are each independently CH, CD, or C-L′-R;

Y ₂ is N, Y ₁ , Y ₃ , Y ₄ , Y ₅ , Y ₆ , Y ₇ , Y ₈ and Y ₉ are each independently CH, CD, or C-L′-R;

Y ₃ is N, Y ₁ , Y ₂ , Y ₄ , Y ₅ , Y ₆ , Y ₇ , Y ₈ and Y ₉ are each independently CH, CD, or C-L′-R;

Y₄is N, and Y_One, Y₂, Y₃, Y₅, Y₆, Y₇, Y₈ and Y₉are each independently C-H, C-D, or C-L'-R;

Y ₅ is N, Y ₁ , Y ₂ , Y ₃ , Y ₄ , Y ₆ , Y ₇ , Y ₈ and Y ₉ are each independently CH, CD, or C-L′-R;

Y ₆ is N, Y ₁ , Y ₂ , Y ₃ , Y ₄ , Y ₅ , Y ₇ , Y ₈ and Y ₉ are each independently CH, CD, or C-L′-R;

Y ₇ is N, Y ₁ , Y ₂ , Y ₃ , Y ₄ , Y ₅ , Y ₆ , Y ₈ and Y ₉ are each independently CH, CD, or C-L′-R;

Y ₈ is N, Y ₁ , Y ₂ , Y ₃ , Y ₄ , Y ₅ , Y ₆ , Y ₇ and Y ₉ are each independently CH, CD, or C-L′-R; or

Y ₉ is N, Y ₁ , Y ₂ , Y ₃ , Y ₄ , Y ₅ , Y ₆ , Y ₇ and Y ₈ may each independently be CH, CD, or C-L′-R.

In addition, in Formula 1, L' is a single bond; or unsubstituted or substituted C _6-20 arylene with deuterium.

Specifically, L' is a single bond; phenylene unsubstituted or substituted with deuterium; Or it may be unsubstituted or naphthylene substituted with deuterium.

, 또는

일 수 있으나, 이에 한정되는 것은 아니다.For example, L' is a single bond,

, or

may be, but is not limited thereto.

In addition, in Formula 1, R is C _6-60 aryl, or C _2-20 heteroaryl including any one heteroatom selected from the group consisting of N, O and S,

Here, R may be unsubstituted or substituted with one or more, for example, one or two substituents selected from the group consisting of deuterium, C _1-10 alkyl and C _6-20 aryl.

Specifically, R is any one selected from the group consisting of:

above,

X ₁ and X ₂ are each independently O, S, or N (phenyl),

each Z is independently deuterium (D), C _1-10 alkyl, or C _6-20 aryl;

a is each independently an integer of 0 to 5,

b is each independently an integer of 0 to 4,

c is each independently an integer of 0 to 7,

d is each independently an integer from 0 to 6,

e is each independently an integer of 0 to 3.

For example, R can be phenyl, biphenylyl, naphthyl, phenanthryl, dibenzofuranyl, dibenzothiophenyl, or carbazolyl.

Also, for example, R may be any one selected from the group consisting of, but is not limited thereto:

.

.

In addition, in Formula 1, L is a single bond; or unsubstituted or substituted C _6-20 arylene with deuterium.

Specifically, L is a single bond; phenylene unsubstituted or substituted with deuterium; Or it may be unsubstituted or naphthylene substituted with deuterium.

More specifically, L may be a single bond or any one selected from the group consisting of:

above,

D means deuterium,

f is each independently an integer from 0 to 4,

g is each independently an integer from 0 to 6.

For example, L may be a single bond or any one selected from the group consisting of:

.

.

In addition, in Formula 1, L ₁ And L ₂ Each independently, a single bond; or unsubstituted or substituted C _6-20 arylene with deuterium.

Specifically, L ₁ and L ₂ are each independently, a single bond; phenylene unsubstituted or substituted with deuterium; biphenyldiyl unsubstituted or substituted with deuterium; Or it may be unsubstituted or naphthylene substituted with deuterium.

And, one of L ₁ and L ₂ may be a single bond.

In addition, in Formula 1, Ar ₁ and Ar ₂ are each independently, C _6-20 aryl; or C _2-20 heteroaryl comprising one heteroatom selected from the group consisting of N, O and S;

Here, Ar ₁ and Ar ₂ may be unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, C _1-10 alkyl, and C _6-20 aryl.

Specifically, Ar ₁ and Ar ₂ are each independently, phenyl, biphenylyl, terphenylyl, naphthyl, phenanthryl, fluorenyl, dibenzofuranyl, dibenzothiophenyl, benzonaphthofuranyl, benzonaph tothiophenyl, carbazolyl, or benzocarbazolyl;

Here, Ar ₁ and Ar ₂ are unsubstituted or substituted with one or more, for example, 1 or 2 substituents selected from the group consisting of deuterium, C _1-10 alkyl and C _6-20 aryl. can

For example, Ar ₁ and Ar ₂ may be each independently, each independently, any one selected from the group consisting of, but are not limited thereto:

.

.

In addition, in Formula 1, one of Ar ₁ and Ar ₂ is unsubstituted or substituted with deuterium phenyl; biphenylyl unsubstituted or substituted with deuterium; or naphthyl unsubstituted or substituted with deuterium.

Specifically, one of Ar ₁ and Ar ₂ may be phenyl, biphenylyl, or naphthyl.

,

, 또는

일 수 있다. For example, one of Ar ₁ and Ar ₂ is

,

, or

can be

Also, in Formula 1, Ar ₁ and Ar ₂ may be the same as or different from each other.

이거나, 또는

일 수 있다. When Ar ₁ and Ar ₂ are the same as each other, Ar ₁ and Ar ₂ are both

is, or

can be

In addition, in Formula 1,

, 또는

이면서,L ₁ is a single bond, L ₂ is

, or

while,

Ar ₁ is phenyl, naphthyl, or biphenylyl,

Ar ₂ may be any one selected from the group consisting of:

.

.

In addition, the compound may be represented by any one of the following Chemical Formulas 1-1 to 1-3:

[Formula 1-1]

In Formula 1-1,

Q ₁ To Q ₉ are each independently N or CH, provided that one of Q ₁ To Q ₉ is N,

L, L ₁ , L ₂ , Ar ₁ and Ar ₂ are as defined in Formula 1 above,

[Formula 1-2]

In Formula 1-2,

Q ₁ to Q ₆ , Q ₈ and Q ₉ are each independently N or CH, provided that one of Q ₁ to Q ₆ , Q ₈ and Q ₉ is N,

R, L, L ₁ , L ₂ , Ar ₁ and Ar ₂ are as defined in Formula 1 above,

[Formula 1-3]

In Formula 1-3,

Q ₁ to Q ₇ and Q ₉ are each independently N or CH, provided that one of Q ₁ to Q ₇ and Q ₉ is N,

R, L, L ₁ , L ₂ , Ar ₁ and Ar ₂ are as defined in Formula 1 above.

In one example, the compound is any one selected from the group consisting of:

.

On the other hand, among the compounds represented by Formula 1, the compound in which Z is a substituent represented by Formula 1 may be prepared by the preparation method shown in Scheme 1 below:

[Scheme 1]

In Scheme 1, X is halogen, preferably bromo, or chloro, and definitions of other substituents are the same as those described above.

Specifically, the compound represented by Formula 1 may be prepared through a Suzuki-coupling reaction of starting materials A1 and A2. This Suzuki-coupling reaction is preferably performed in the presence of a palladium catalyst and a base, and the reactor for the Suzuki-coupling reaction may be appropriately changed. The method for preparing the compound represented by Formula 1 may be more specific in Preparation Examples to be described later.

(organic light emitting element)

In addition, the present invention provides an organic light emitting device comprising the compound represented by Formula 1 above. In one example, the present invention provides a first electrode; a second electrode provided to face the first electrode; and at least one organic material layer provided between the first electrode and the second electrode, wherein the at least one organic material layer includes the compound represented by Formula 1 above.

The organic material layer of the organic light emitting device of the present invention may have a single-layer structure, but may have a multi-layer structure in which two or more organic material layers are stacked. For example, the organic light emitting device of the present invention may have a structure including a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer, etc. as an organic material layer. However, the structure of the organic light emitting device is not limited thereto and may include a smaller number of organic layers.

In one embodiment, the organic material layer may include a light emitting layer, wherein the organic material layer including the compound may be a light emitting layer.

In another embodiment, the organic material layer may include a hole injection layer, a hole transport layer, a light emitting layer, and an electron injection and transport layer, wherein the organic material layer including the compound may be a light emitting layer.

In another embodiment, the organic material layer may include a hole injection layer, a hole transport layer, an electron suppression layer, a light emitting layer, and an electron injection and transport layer, wherein the organic material layer including the compound may be a light emitting layer.

In another embodiment, the organic material layer may include a hole injection layer, a hole transport layer, an electron suppression layer, a light emitting layer, an electron blocking layer and an electron injection and transport layer, wherein the organic material layer comprising the compound may be a light emitting layer.

In addition, the organic light emitting device according to the present invention is an organic light emitting device having a structure (normal type) in which an anode, one or more organic material layers and a cathode are sequentially stacked on a substrate in which a first electrode is an anode and a second electrode is a cathode can be In addition, the organic light emitting device according to the present invention has an inverted type organic light emitting device in which a cathode, one or more organic material layers and an anode are sequentially stacked on a substrate in which a first electrode is a cathode and a second electrode is an anode can be For example, the structure of the organic light emitting diode according to an embodiment of the present invention is illustrated in FIGS. 1 and 2 .

1 shows an example of an organic light emitting device including a substrate 1 , an anode 2 , a light emitting layer 3 , and a cathode 4 . In such a structure, the compound represented by Formula 1 may be included in the light emitting layer.

2 is a substrate (1), an anode (2), a hole injection layer (5), a hole transport layer (6), an electron blocking layer (7), a light emitting layer (3), a hole blocking layer (8), an electron injection and transport layer ( 9) and an example of an organic light emitting device including a cathode 4 are shown.

The organic light emitting device according to the present invention may be manufactured using materials and methods known in the art, except that the light emitting layer includes the compound according to the present invention and is manufactured as described above.

For example, the organic light emitting device according to the present invention may be manufactured by sequentially stacking an anode, an organic material layer, and a cathode on a substrate. At this time, by using a PVD (physical vapor deposition) method such as sputtering or e-beam evaporation, a metal or a metal oxide having conductivity or an alloy thereof is deposited on a substrate to form an anode And, after forming an organic layer including a hole injection layer, a hole transport layer, a light emitting layer and an electron transport layer thereon, it can be prepared by depositing a material that can be used as a cathode thereon.

In addition to this method, an organic light emitting device may be manufactured by sequentially depositing an organic material layer and an anode material from a cathode material on a substrate (WO 2003/012890). However, the manufacturing method is not limited thereto.

In one example, the first electrode is an anode, the second electrode is a cathode, or the first electrode is a cathode and the second electrode is an anode.

As the anode material, a material having a large work function is generally preferred so that holes can be smoothly injected into the organic material layer. Specific examples of the anode material include metals such as vanadium, chromium, copper, zinc, gold, or alloys thereof; metal oxides such as zinc oxide, indium oxide, indium tin oxide (ITO), and indium zinc oxide (IZO); combinations of metals and oxides such as ZnO:Al or SnO ₂ :Sb; Conductive compounds such as poly(3-methylthiophene), poly[3,4-(ethylene-1,2-dioxy)thiophene](PEDOT), polypyrrole, and polyaniline, but are not limited thereto.

The cathode material is preferably a material having a small work function to facilitate electron injection into the organic material layer. Specific examples of the anode material include metals such as magnesium, calcium, sodium, potassium, titanium, indium, yttrium, lithium, gadolinium, aluminum, silver, tin and lead, or alloys thereof; LiF/Al or a multi-layered material such as LiO ₂ /Al, but is not limited thereto.

The hole injection layer is a layer for injecting holes from the electrode, and as a hole injection material, it has the ability to transport holes, so it has a hole injection effect at the anode, an excellent hole injection effect on the light emitting layer or the light emitting material, and is produced in the light emitting layer A compound which prevents the movement of excitons to the electron injection layer or the electron injection material and is excellent in the ability to form a thin film is preferable. It is preferable that the highest occupied molecular orbital (HOMO) of the hole injection material is between the work function of the positive electrode material and the HOMO of the surrounding organic material layer. Specific examples of the hole injection material include metal porphyrin, oligothiophene, arylamine-based organic material, hexanitrile hexaazatriphenylene-based organic material, quinacridone-based organic material, and perylene-based organic material. of organic substances, anthraquinones, polyaniline and polythiophene-based conductive compounds, and the like, but are not limited thereto.

The hole transport layer is a layer that receives holes from the hole injection layer and transports them to the light emitting layer. The hole transport material is a material that can transport holes from the anode or the hole injection layer to the light emitting layer and transfer them to the light emitting layer. material is suitable. Specific examples include, but are not limited to, an arylamine-based organic material, a conductive compound, and a block copolymer having a conjugated portion and a non-conjugated portion together.

The electron suppression layer is formed on the hole transport layer, preferably provided in contact with the light emitting layer, adjusts hole mobility, prevents excessive movement of electrons, and increases the hole-electron coupling probability, thereby increasing the efficiency of the organic light emitting device It means a layer that plays a role in improving The electron blocking layer includes an electron blocking material, and an example of such an electron blocking material may be an arylamine-based organic material, but is not limited thereto.

The emission layer may include a host material and a dopant material. As the host material, the compound represented by Chemical Formula 1 may be used. In addition, as the host material, in addition to the compound represented by Formula 1, a condensed aromatic ring derivative or a hetero ring-containing compound may be additionally used. Specifically, condensed aromatic ring derivatives include anthracene derivatives, pyrene derivatives, naphthalene derivatives, pentacene derivatives, phenanthrene compounds, fluoranthene compounds, and the like, and heterocyclic-containing compounds include carbazole derivatives, dibenzofuran derivatives, ladder types. Furan compounds, pyrimidine derivatives, and the like, but are not limited thereto.

Further, examples of the dopant material include an aromatic amine derivative, a strylamine compound, a boron complex, a fluoranthene compound, and a metal complex. Specifically, the aromatic amine derivative is a condensed aromatic ring derivative having a substituted or unsubstituted arylamino group, and includes pyrene, anthracene, chrysene, periflanthene, and the like, having an arylamino group. As the styrylamine compound, a substituted or unsubstituted It is a compound in which at least one arylvinyl group is substituted in the arylamine, and one or two or more substituents selected from the group consisting of an aryl group, a silyl group, an alkyl group, a cycloalkyl group and an arylamino group are substituted or unsubstituted. Specifically, there are styrylamine, styryldiamine, styryltriamine, styryltetraamine, and the like, but is not limited thereto. In addition, the metal complex includes an iridium complex, a platinum complex, and the like, but is not limited thereto.

More specifically, the following compounds may be used as the dopant material, but the present invention is not limited thereto:

.

.

The hole blocking layer is formed on the light emitting layer, preferably provided in contact with the light emitting layer, to control electron mobility and prevent excessive movement of holes to increase the hole-electron coupling probability, thereby improving the efficiency of the organic light emitting device layer that plays a role. The hole blocking layer includes a hole blocking material, and examples of the hole blocking material include azine derivatives including triazine; triazole derivatives; oxadiazole derivatives; phenanthroline derivatives; A compound into which an electron withdrawing group is introduced, such as a phosphine oxide derivative, may be used, but the present invention is not limited thereto.

The electron injection and transport layer is a layer that simultaneously serves as an electron transport layer and an electron injection layer for injecting electrons from the electrode and transporting the received electrons to the emission layer, and is formed on the emission layer or the hole blocking layer. As the electron injection and transport material, a material capable of receiving electrons from the cathode and transferring them to the light emitting layer is suitable, and a material having high electron mobility is suitable. Examples of specific electron injection and transport materials include Al complex of 8-hydroxyquinoline; complexes containing Alq ₃ ; organic radical compounds; hydroxyflavone-metal complexes; and triazine derivatives, but is not limited thereto. or fluorenone, anthraquinodimethane, diphenoquinone, thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, perylenetetracarboxylic acid, fluorenylidene methane, anthrone, and derivatives thereof, metal complex compounds , or may be used together with a nitrogen-containing 5-membered ring derivative, and the like, but is not limited thereto.

The electron injection and transport layer may be formed as a separate layer such as an electron injection layer and an electron transport layer. In this case, the electron transport layer is formed on the light emitting layer or the hole blocking layer, and the electron injection and transport material described above may be used as the electron transport material included in the electron transport layer. In addition, the electron injection layer is formed on the electron transport layer, and the electron injection material included in the electron injection layer is LiF, NaCl, CsF, Li ₂ O, BaO, fluorenone, anthraquinodimethane, diphenoquinone, Thiopyran dioxide, oxazole, oxadiazole, triazole, imidazole, perylenetetracarboxylic acid, fluorenylidene methane, anthrone and their derivatives, metal complex compounds, nitrogen-containing 5-membered ring derivatives, etc. can be used.

Examples of the metal complex compound include 8-hydroxyquinolinato lithium, bis(8-hydroxyquinolinato)zinc, bis(8-hydroxyquinolinato)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-crezolato)gallium, bis(2-methyl-8-quinolinato)(1-naphtolato)aluminum, bis(2-methyl-8-quinolinato)(2-naphtolato)gallium, etc. The present invention is not limited thereto.

The organic light emitting device according to the present invention may be a bottom emission device, a top emission device, or a double-sided light emitting device, and in particular, may be a bottom emission device requiring relatively high luminous efficiency.

In addition, the compound according to the present invention may be included in an organic solar cell or an organic transistor in addition to the organic light emitting device.

The compound represented by Formula 1 and the preparation of an organic light emitting device including the same will be described in detail in Examples below. However, the following examples are intended to illustrate the present invention, and the scope of the present invention is not limited thereto.

Synthesis Example A: Synthesis of intermediate compound A

In a nitrogen atmosphere, A_sm1 (15 g, 72.3 mmol) and A-sm2 (19 g, 94 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (30 g, 216.9 mmol) was dissolved in 90 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.4 g, 0.7 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.6 g of A_P1. (Yield 71%, MS: = 285)

Next, A_P1 (10 g, 35.1 mmol) and HBF ₄ (6.2 g, 70.2 mmol) were added to 100 mL of ACN in a nitrogen atmosphere and stirred. After that, NaNO ₂ (4.8 g, 70.2 mmol) was dissolved in 20 mL of H ₂ O and slowly added at 0°C. After 10 hours of reaction, the temperature was raised to room temperature, and 200 mL of water was added thereto to dilute. It was completely dissolved in chloroform, washed twice with water, the organic layer was separated, treated with anhydrous magnesium sulfate, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 6.5 g of A_P2. (Yield 74%, MS: [M+H] ⁺ = 251)

Next, A_P2 (15 g, 59.1 mmol) and bis(pinacolato)diboron (16.5 g, 65 mmol) were refluxed in 300 mL of 1,4-dioxane in a nitrogen atmosphere and stirred. After potassium acetate (8.7 g, 88.7 mmol) was added and sufficiently stirred, bis(dibenzylideneacetone)palladium(0) (1 g, 1.8 mmol) and tricyclohexylphosphine (1 g, 3.5 mmol) were added. After reacting for 10 hours, cooling to room temperature, and separating the organic layer using chloroform and water, the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.3 g of Compound A. (Yield 70%, MS: [M+H] ⁺ = 346)

Synthesis Example B: Synthesis of intermediate compound B

B_sm1 (15 g, 45 mmol) and A_sm2 (9.5 g, 47.2 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (18.7 g, 135 mmol) was dissolved in 56 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0) (0.2 g, 0.4mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 10.4 g of B_P1. (Yield 64%, MS: [M+H]+= 363)

Next, B_P1 (10 g, 27.5 mmol) and HBF ₄ (4.8 g, 55 mmol) were added to 100 mL of ACN in a nitrogen atmosphere and stirred. After that, NaNO ₂ (3.8 g, 55 mmol) was dissolved in H ₂ O 20 mL and slowly added at 0°C. After 10 hours of reaction, the temperature was raised to room temperature, and 200 mL of water was added thereto to dilute. It was completely dissolved in chloroform, washed twice with water, the organic layer was separated, treated with anhydrous magnesium sulfate, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 6.5 g of B_P2. (Yield 74%, MS: [M+H] ⁺ = 251)

Next, B_P2 (15 g, 45.1 mmol) and bis(pinacolato)diboron (12.6 g, 49.6 mmol) were refluxed in 300 mL of 1,4-dioxane and stirred in a nitrogen atmosphere. After that, potassium acetate (6.6 g, 67.7 mmol) was added, and after sufficient stirring, bis(dibenzylideneacetone)palladium(0)(0.8 g, 1.4mmol) and tricyclohexylphosphine (0.8 g, 2.7mmol) were added. After reacting for 8 hours, cooling to room temperature, and separating the organic layer using chloroform and water, the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.7 g of Formula B. (yield 80%, MS: [M+H]+= 380)

Synthesis Example C: Synthesis of intermediate compound C

12.2 g of Compound C was prepared in the same manner as in Synthesis Example A, except that C-sm1 was used instead of A-sm1 as a starting material in Synthesis Example A. (Yield: 60%, MS: [M+H] ⁺ = 346)

Synthesis Example D: Synthesis of intermediate compound D

10.9 g of Compound D was prepared in the same manner as in Synthesis Example B, except that D-sm1 was used instead of B-sm1 as a starting material in Synthesis Example B. (Yield: 64%, MS: [M+H] ⁺ = 380)

Synthesis Example E: Synthesis of intermediate compound E

12 g of Compound E was prepared in the same manner as in Synthesis Example B, except that E-sm1 was used instead of B-sm1 as a starting material in Synthesis Example B. (Yield: 70%, MS: [M+H] ⁺ = 380)

Synthesis Example F: Synthesis of intermediate compound F

11.5 g of Compound F was prepared in the same manner as in Synthesis Example B, except that F-sm1 was used instead of B-sm1 as a starting material in Synthesis Example B. (Yield: 67%, MS: [M+H] ⁺ = 380)

Synthesis Example G: Synthesis of intermediate compound G

15.5 g of Compound G was prepared in the same manner as in Synthesis Example A, except that G-sm1 was used instead of A-sm1 as a starting material in Synthesis Example A. (Yield: 76%, MS: [M+H] ⁺ = 346)

Synthesis Example H: Synthesis of intermediate compound H

In a nitrogen atmosphere, H_sm1 (15 g, 72.6 mmol) and H_sm2 (19.2 g, 94.4 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (30.1 g, 217.9 mmol) was dissolved in 90 mL of water, and after stirring sufficiently, bis(tri-tert-butylphosphine)palladium(0) (0.4 g, 0.7 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.4 g of H_P1. (Yield 73%, MS: [M+H] ⁺ = 254)

Next, H_P1 (10 g, 35.1 mmol) and HBF ₄ (6.2 g, 70.2 mmol) were added to 100 mL of ACN in a nitrogen atmosphere and stirred. After that, NaNO ₂ (4.8 g, 70.2 mmol) was dissolved in 20 mL of H ₂ O and slowly added at 0°C. After 10 hours of reaction, the temperature was raised to room temperature, and 200 mL of water was added thereto to dilute. It was completely dissolved in chloroform, washed twice with water, the organic layer was separated, treated with anhydrous magnesium sulfate, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 6.3 g of H_P2. (Yield 72%, MS: [M+H] ⁺ = 251)

Next, in a nitrogen atmosphere, H_P2 (15 g, 59.1 mmol) and bis(pinacolato)diboron (16.5 g, 65 mmol) were refluxed in 300 mL of 1,4-dioxane and stirred. After potassium acetate (8.7 g, 88.7 mmol) was added and sufficiently stirred, bis(dibenzylideneacetone)palladium(0) (1 g, 1.8 mmol) and tricyclohexylphosphine (1 g, 3.5 mmol) were added. After reacting for 10 hours, cooling to room temperature, and separating the organic layer using chloroform and water, the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 15.5 g of Compound H. (yield 76%, MS: [M+H] ⁺ = 346)

Synthesis Example I: Synthesis of intermediate compound I

In a nitrogen atmosphere, I_sm1 (15 g, 45.1 mmol) and H_sm2 (9.6 g, 47.4 mmol) were placed in 300 mL of THF, stirred and refluxed. After that, potassium carbonate (18.7 g, 135.4 mmol) was dissolved in 56 mL of water and thoroughly stirred, and then bis(tri-tert-butylphosphine)palladium(0) (0.2 g, 0.5mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 10.9 g of I_P1. (Yield 67%, MS: [M+H]+= 363)

Next, I_P1 (10 g, 27.5 mmol) and HBF ₄ (4.8 g, 55 mmol) were added to 100 mL of ACN in a nitrogen atmosphere and stirred. After that, NaNO ₂ (3.8 g, 55 mmol) was dissolved in H ₂ O 20 mL and slowly added at 0°C. After 10 hours of reaction, the temperature was raised to room temperature, and 200 mL of water was added thereto to dilute. It was completely dissolved in chloroform, washed twice with water, the organic layer was separated, treated with anhydrous magnesium sulfate, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 6.5 g of I_P2. (Yield 74%, MS: [M+H] ⁺ = 251)

Next, I_P2 (15 g, 45.1 mmol) and bis(pinacolato)diboron (12.6 g, 49.6 mmol) were refluxed in 300 mL of 1,4-dioxane and stirred in a nitrogen atmosphere. After that, potassium acetate (6.6 g, 67.7 mmol) was added, and after sufficient stirring, bis(dibenzylideneacetone)palladium(0) (0.8 g, 1.4 mmol) and tricyclohexylphosphine (0.8 g, 2.7 mmol) were added. After reacting for 8 hours, cooling to room temperature, and separating the organic layer using chloroform and water, the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.2 g of Formula I. (Yield 77%, MS: [M+H]+=380)

Synthesis Example J: Synthesis of intermediate compound J

12.5 g of Compound J was prepared in the same manner as in Synthesis Example I, except that J-sm1 was used instead of I-sm1 as a starting material in Synthesis Example I. (Yield: 73%, MS: [M+H] ⁺ = 380)

Synthesis Example K: Synthesis of intermediate compound K

13.7 g of Compound K was prepared in the same manner as in Synthesis Example H, except that K-sm2 was used instead of H-sm2 as a starting material in Synthesis Example H. (Yield: 67%, MS: [M+H] ⁺ = 346)

Synthesis Example L: Synthesis of intermediate compound L

12.7 g of Compound L was prepared in the same manner as in Synthesis Example I, except that J-sm1 was used instead of I-sm1 and K_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 74%, MS: [M+H] ⁺ = 380)

Synthesis Example M: Synthesis of intermediate compound M

12.5 g of Compound M was prepared in the same manner as in Synthesis Example I, except that M_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 73%, MS: [M+H] ⁺ = 380)

Synthesis Example N: Synthesis of intermediate compound N

14.7 g of Compound N was prepared in the same manner as in Synthesis Example H, except that M-sm2 was used instead of H-sm2 as a starting material in Synthesis Example H. (Yield: 72%, MS: [M+H] ⁺ = 346)

Synthesis Example O: Synthesis of intermediate compound O

13.2 g of Compound O was prepared in the same manner as in Synthesis Example I, except that J-sm1 was used instead of I-sm1 and M_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 77%, MS: [M+H] ⁺ = 380)

Synthesis Example P: Synthesis of intermediate compound P

14.7 g of Compound P was prepared in the same manner as in Synthesis Example H, except that P-sm2 was used instead of H-sm2 as a starting material in Synthesis Example H. (Yield: 72%, MS: [M+H] ⁺ = 346)

Synthesis Example Q: Synthesis of intermediate compound Q

12.8 g of Compound Q was prepared in the same manner as in Synthesis Example I, except that P_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 75%, MS: [M+H] ⁺ = 380)

Synthesis Example R: Synthesis of intermediate compound R

13.3 g of compound R was prepared in the same manner as in Synthesis Example H, except that R-sm2 was used instead of H-sm2 as a starting material in Synthesis Example H. (Yield: 65%, MS: [M+H] ⁺ = 346)

Synthesis Example S: Synthesis of intermediate compound S

11.3 g of Compound S was prepared in the same manner as in Synthesis Example I, except that J-sm1 was used instead of I-sm1 and R_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 66%, MS: [M+H] ⁺ = 380)

Synthesis Example T: Synthesis of intermediate compound T

13.9 g of Compound T was prepared in the same manner as in Synthesis Example H, except that T-sm2 was used instead of H-sm2 as a starting material in Synthesis Example H. (Yield: 68%, MS: [M+H] ⁺ = 346)

Synthesis Example U: Synthesis of intermediate compound U

13 g of Compound U was prepared in the same manner as in Synthesis Example I, except that J-sm1 was used instead of I-sm1 and T_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 76%, MS: [M+H] ⁺ = 380)

Synthesis Example V: Synthesis of intermediate compound U

12.3 g of Compound V was prepared in the same manner as in Synthesis Example I, except that T_sm2 was used instead of H-sm2 as a starting material in Synthesis Example I. (Yield: 72%, MS: [M+H] ⁺ = 380)

Synthesis Example 1: Preparation of compound 1

Compound A (15 g, 46.1 mmol) and Trz1 (16.7 g, 48.4 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12.7 g, 92.2 mmol) was dissolved in 38 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.5 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.2 g of Compound 1. (Yield 71%, MS: [M+H] ⁺ = 527)

Synthesis Example 2: Preparation of compound 2

Compound A (15 g, 46.1 mmol) and Trz2 (19.1 g, 48.4 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12.7 g, 92.2 mmol) was dissolved in 38 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.5 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 18.1 g of Compound 2. (Yield 68%, MS: [M+H] ⁺ = 577)

Synthesis Example 3: Preparation of compound 3

Compound A (15 g, 46.1 mmol) and Trz3 (19.1 g, 48.4 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12.7 g, 92.2 mmol) was dissolved in 38 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.5 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 20.7 g of compound 3. (Yield 78%, MS: [M+H] ⁺ = 577)

Synthesis Example 4: Preparation of compound 4

Compound B (15 g, 39.5 mmol) and Trz4 (15.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.6 g of subB-1. (Yield 73%, MS: [M+H] ⁺ = 611)

Next, subB-1 (15 g, 24.5 mmol) and sub1 (3.1 g, 25.8 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (6.8 g, 49.1 mmol) was dissolved in 20 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.2 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11.2 g of compound 4. (Yield 70%, MS: [M+H] ⁺ = 653)

Synthesis Example 5: Preparation of compound 5

Compound C (15 g, 46.1 mmol) and Trz5 (18.1 g, 48.4 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12.7 g, 92.2 mmol) was dissolved in 38 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.5 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19.5 g of compound 5. (yield 76%, MS: [M+H] ⁺ = 557)

Synthesis Example 6: Preparation of compound 6

Compound D (15 g, 39.5 mmol) and Trz6 (10.4 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.5 g of subD-1. (Yield 65%, MS: [M+H] ⁺ = 487)

Next, subD-1 (15 g, 30.8 mmol) and sub2 (7.4 g, 32.3 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. After that, potassium carbonate (8.5 g, 61.6 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.3 g of compound 6. (Yield 68%, MS: [M+H] ⁺ = 635)

Synthesis Example 7: Preparation of compound 7

Compound E (15 g, 39.5 mmol) and Trz4 (15.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19.3 g of subE-1. (yield 80%, MS: [M+H] ⁺ = 611)

Next, subE-1 (15 g, 24.5 mmol) and sub1 (3.1 g, 25.8 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (6.8 g, 49.1 mmol) was dissolved in 20 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.2 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11.2 g of compound 7. (Yield 70%, MS: [M+H] ⁺ = 653)

Synthesis Example 8: Preparation of compound 8

Compound C (15 g, 43.5 mmol) and Trz7 (22.1 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19.1 g of compound 8. (Yield 66%, MS: [M+H] ⁺ = 667)

Synthesis Example 9: Preparation of compound 9

Compound F (15 g, 39.5 mmol) and Trz6 (10.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.7 g of subF-1. (Yield 77%, MS: [M+H] ⁺ = 485)

Next, subF-1 (15 g, 30.9 mmol) and sub3 (6.9 g, 32.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (8.6 g, 61.9 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11.8 g of compound 9. (Yield 62%, MS: [M+H] ⁺ = 617)

Synthesis Example 10: Preparation of compound 10

Compound G (15 g, 43.5 mmol) and Trz8 (16.8 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 18.9 g of compound 10. (yield 79%, MS: [M+H] ⁺ = 551)

Synthesis Example 11: Preparation of compound 11

Compound G (15 g, 43.5 mmol) and Trz9 (22.1 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.4 g of compound 11. (Yield 60%, MS: [M+H] ⁺ = 667)

Synthesis Example 12: Preparation of compound 12

Compound G (15 g, 43.5 mmol) and Trz4 (18 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 16.5 g of compound 12. (Yield 66%, MS: [M+H] ⁺ = 577)

Synthesis Example 13: Preparation of compound 13

Compound H (15 g, 43.5 mmol) and Trz10 (16.8 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.7 g of compound 13. (Yield 74%, MS: [M+H] ⁺ = 551)

Synthesis Example 14: Preparation of compound 14

Compound H (15 g, 43.5 mmol) and Trz11 (20.3 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 21.5 g of compound 14. (yield 79%, MS: [M+H] ⁺ = 627)

Synthesis Example 15: Preparation of compound 15

Compound I (15 g, 39.5 mmol) and Trz6 (10.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.6 g of subI-1. (Yield 66%, MS: [M+H] ⁺ = 485)

Next, subI-1 (15 g, 30.9 mmol) and sub3 (6.9 g, 32.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (8.6 g, 61.9 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.2 g of compound 15. (yield 69%, MS: [M+H] ⁺ = 617)

Synthesis Example 16: Preparation of compound 16

In a nitrogen atmosphere, subI-1 (15 g, 30.9 mmol) and sub4 (7.2 g, 32.5 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (8.6 g, 61.9 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.8 g of compound 16. (Yield 66%, MS: [M+H] ⁺ = 627)

Synthesis Example 17: Preparation of compound 17

Compound H (15 g, 43.5 mmol) and Trz12 (18 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 15.3 g of compound 17. (Yield 61%, MS: [M+H] ⁺ = 577)

Synthesis Example 18: Preparation of compound 18

Compound J (15 g, 39.5 mmol) and Trz13 (17.1 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19.5 g of subJ-1. (yield 76%, MS: [M+H] ⁺ = 651)

Next, subJ-1 (15 g, 23 mmol) and sub1 (2.9 g, 24.2 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (6.4 g, 46.1 mmol) was dissolved in 19 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.2 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11 g of compound 18. (yield 69%, MS: [M+H] ⁺ = 693)

Synthesis Example 19: Preparation of compound 19

Compound K (15 g, 43.5 mmol) and Trz14 (18 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19.8 g of compound 19. (yield 79%, MS: [M+H] ⁺ = 577)

Synthesis Example 20: Preparation of compound 20

Compound K (15 g, 43.5 mmol) and Trz8 (16.8 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 18.6 g of compound 20. (Yield 78%, MS: [M+H] ⁺ = 551)

Synthesis Example 21: Preparation of compound 21

In a nitrogen atmosphere, compound L (15 g, 39.5 mmol) and Trz15 (12.6 g, 39.5 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.4 g of subL-1. (Yield 68%, MS: [M+H] ⁺ = 535)

In a nitrogen atmosphere, subL-1 (15 g, 28 mmol) and sub1 (3.6 g, 29.4 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (7.8 g, 56.1 mmol) was dissolved in 23 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.3 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.9 g of compound 21. (yield 80%, MS: [M+H] ⁺ = 577)

Synthesis Example 22: Preparation of compound 22

Compound K (15 g, 43.5 mmol) and Trz13 (19.8 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.9 g of compound 22. (Yield 67%, MS: [M+H] ⁺ = 617)

Synthesis Example 23: Preparation of compound 23

Compound K (15 g, 43.5 mmol) and Trz4 (18 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.8 g of compound 23. (Yield 71%, MS: [M+H] ⁺ = 577)

Synthesis Example 24: Preparation of compound 24

Compound M (15 g, 39.5 mmol) and Trz6 (10.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.9 g of subM-1. (Yield 78%, MS: [M+H] ⁺ = 485)

Next, subM-1 (15 g, 30.9 mmol) and sub3 (6.9 g, 32.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (8.6 g, 61.9 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11.8 g of compound 24. (Yield 62%, MS: [M+H] ⁺ = 617)

Synthesis Example 25: Preparation of compound 25

Compound N (15 g, 43.5 mmol) and Trz16 (19.2 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19.6 g of compound 25. (yield 75%, MS: [M+H] ⁺ = 603)

Synthesis Example 26: Preparation of compound 26

Compound N (15 g, 43.5 mmol) and Trz17 (18 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 16 g of compound 26. (Yield 64%, MS: [M+H] ⁺ = 577)

Synthesis Example 27: Preparation of compound 27

In a nitrogen atmosphere, compound N (15 g, 43.5 mmol) and Trz18 (19.1 g, 45.6 mmol) were added to 300 mL of THF, followed by stirring and reflux. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.2 g of compound 27. (Yield 66%, MS: [M+H] ⁺ = 601)

Synthesis Example 28: Preparation of compound 28

Compound O (15 g, 39.5 mmol) and Trz1 (13.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.5 g of subO-1. (Yield 61%, MS: [M+H] ⁺ = 561)

Next, subO-1 (15 g, 26.7 mmol) and sub1 (3.4 g, 28.1 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (7.4 g, 53.5 mmol) was dissolved in 22 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.3 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.2 g of compound 28. (yield 76%, MS: [M+H] ⁺ = 603)

Synthesis Example 29: Preparation of compound 29

In a nitrogen atmosphere, compound N (15 g, 43.5 mmol) and Trz19 (18 g, 45.6 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 18.8 g of compound 29. (yield 75%, MS: [M+H] ⁺ = 577)

Synthesis Example 30: Preparation of compound 30

Compound P (15 g, 43.5 mmol) and Trz20 (19.8 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 16.3 g of compound 30. (Yield 61%, MS: [M+H] ⁺ = 617)

Synthesis Example 31: Preparation of compound 31

Compound Q (15 g, 39.5 mmol) and Trz6 (10.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11.7 g of subQ-1. (Yield 61%, MS: [M+H] ⁺ = 487)

Next, subQ-1 (15 g, 30.8 mmol) and sub5 (6.4 g, 32.3 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. After that, potassium carbonate (8.5 g, 61.6 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 11.5 g of compound 31. (Yield 62%, MS: [M+H] ⁺ = 605)

Synthesis Example 32: Preparation of compound 32

Compound P (15 g, 43.5 mmol) and Trz21 (16.3 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 16.7 g of compound 32. (Yield 71%, MS: [M+H] ⁺ = 541)

Synthesis Example 33: Preparation of compound 33

Compound R (15 g, 43.5 mmol) and Trz22 (17.1 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.5 g of compound 33. (Yield 60%, MS: [M+H] ⁺ = 557)

Synthesis Example 34: Preparation of compound 34

Compound R (15 g, 43.5 mmol) and Trz23 (16.3 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 15.7 g of compound 34. (Yield 67%, MS: [M+H] ⁺ = 541)

Synthesis Example 35: Preparation of compound 35

Compound S (15 g, 39.5 mmol) and Trz21 (14.1 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 16.1 g of subS-1. (Yield 71%, MS: [M+H] ⁺ = 575)

Next, subS-1 (15 g, 26.1 mmol) and sub6 (4.7 g, 27.4 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (7.2 g, 52.2 mmol) was dissolved in 22 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.3 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.4 g of compound 35. (Yield 77%, MS: [M+H] ⁺ = 667)

Synthesis Example 36: Preparation of compound 36

Compound S (15 g, 39.5 mmol) and Trz24 (13.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 15.3 g of subS-2. (yield 69%, MS: [M+H] ⁺ = 561)

In a nitrogen atmosphere, subS-2 (15 g, 26.7 mmol) and sub6 (4.8 g, 28.1 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (7.4 g, 53.5 mmol) was dissolved in 22 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.3 mmol) was added. After 10 hours of reaction, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.8 g of compound 36. (yield 79%, MS: [M+H] ⁺ = 653)

Synthesis Example 37: Preparation of compound 37

Compound T (15 g, 43.5 mmol) and Trz25 (20.3 g, 45.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (12 g, 86.9 mmol) was dissolved in 36 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 19 g of compound 37. (Yield 70%, MS: [M+H] ⁺ = 627)

Synthesis Example 38: Preparation of compound 38

Compound U (15 g, 39.5 mmol) and Trz26 (13.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 17.5 g of subU-1. (yield 79%, MS: [M+H] ⁺ = 561)

Next, subU-1 (15 g, 26.7 mmol) and sub1 (3.4 g, 28.1 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (7.4 g, 53.5 mmol) was dissolved in 22 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.3 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.2 g of compound 38. (yield 76%, MS: [M+H] ⁺ = 603)

Synthesis Example 39: Preparation of compound 39

Compound V (15 g, 39.5 mmol) and Trz6 (10.6 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 13.2 g of subV-1. (yield 69%, MS: [M+H] ⁺ = 485)

Next, subV-1 (15 g, 30.9 mmol) and sub7 (7.4 g, 32.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (8.6 g, 61.9 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.7 g of compound 39. (Yield 65%, MS: [M+H] ⁺ = 633)

Synthesis Example 40: Preparation of compound 40

In a nitrogen atmosphere, compound U (15 g, 39.5 mmol) and Trz6 (10.6 g, 39.5 mmol) were added to 300 mL of THF, stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 9 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.3 g of subU-2. (yield 75%, MS: [M+H] ⁺ = 485)

Next, subU-2 (15 g, 30.9 mmol) and sub8 (7.2 g, 32.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (8.6 g, 61.9 mmol) was dissolved in 26 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.3 mmol) was added. After the reaction for 12 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 14.1 g of compound 40. (Yield 73%, MS: [M+H] ⁺ = 627)

Synthesis Example 41: Preparation of compound 41

Compound U (15 g, 39.5 mmol) and Trz5 (14.8 g, 39.5 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. Thereafter, potassium carbonate (10.9 g, 79 mmol) was dissolved in 33 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.2 g, 0.4 mmol) was added. After the reaction for 11 hours, it was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 15.2 g of subU-3. (Yield 65%, MS: [M+H] ⁺ = 591)

Next, subU-3 (15 g, 25.4 mmol) and sub1 (3.2 g, 26.6 mmol) were added to 300 mL of THF in a nitrogen atmosphere, and the mixture was stirred and refluxed. After that, potassium carbonate (7 g, 50.8 mmol) was dissolved in 21 mL of water, and after sufficient stirring, bis(tri-tert-butylphosphine)palladium(0)(0.1 g, 0.3 mmol) was added. After the reaction for 8 hours, the mixture was cooled to room temperature, the organic layer and the water layer were separated, and the organic layer was distilled. This was again dissolved in chloroform, washed twice with water, the organic layer was separated, anhydrous magnesium sulfate was added, stirred, filtered, and the filtrate was distilled under reduced pressure. The concentrated compound was purified by silica gel column chromatography to prepare 12.2 g of compound 41. (Yield 76%, MS: [M+H] ⁺ = 633)

Example 1

A glass substrate coated with indium tin oxide (ITO) to a thickness of 1,000 Å was placed in distilled water in which detergent was dissolved and washed with ultrasonic waves. At this time, a product manufactured by Fischer Co. was used as the detergent, and distilled water that was secondarily filtered with a filter manufactured by Millipore Co. was used as the distilled water. After washing the ITO for 30 minutes, ultrasonic washing was performed for 10 minutes by repeating twice with distilled water. After washing with distilled water, ultrasonic washing was performed with a solvent of isopropyl alcohol, acetone, and methanol, and after drying, it was transported to a plasma cleaner. In addition, after cleaning the substrate for 5 minutes using oxygen plasma, the substrate was transported to a vacuum evaporator.

On the thus prepared ITO transparent electrode, the following HI-1 compound was formed as a hole injection layer to a thickness of 1150 Å, but the following A-1 compound was p-doped at a concentration of 1.5%. The following HT-1 compound was vacuum-deposited on the hole injection layer to form a hole transport layer having a thickness of 800 Å. Then, the following EB-1 compound was vacuum-deposited to a thickness of 150 Å on the hole transport layer to form an electron blocking layer.

Next, the compound 1 prepared in Synthesis Example 1 and the compound Dp-7 below were vacuum-deposited in a weight ratio of 98:2 on the electron suppression layer to form a red light emitting layer having a thickness of 400 Å.

A hole blocking layer was formed by vacuum-depositing the following HB-1 compound to a thickness of 30 Å on the light emitting layer. Then, on the hole blocking layer, the following ET-1 compound and the following LiQ compound were vacuum-deposited at a weight ratio of 2:1 to form an electron injection and transport layer to a thickness of 300 Å. A cathode was formed by sequentially depositing lithium fluoride (LiF) to a thickness of 12 Å and aluminum to a thickness of 1,000 Å on the electron injection and transport layer.

In the above process, the deposition rate of organic material was maintained at 0.4~0.7Å/sec, the deposition rate of lithium fluoride of the negative electrode was maintained at 0.3Å/sec, and the deposition rate of aluminum was maintained at 2Å/sec, and the vacuum degree during deposition was 2×10 ^-7 ~ By maintaining 5×10 ^-6 torr, an organic light emitting diode was manufactured.

Examples 2 to 24

An organic light emitting device was manufactured in the same manner as in Example 1, except that the compound shown in Table 1 was used instead of Compound 1 in the organic light emitting device of Example 1.

Comparative Examples 1 to 12

An organic light emitting device was manufactured in the same manner as in Example 1, except that the compound shown in Table 1 was used instead of Compound 1 in the organic light emitting device of Example 1.

Experimental example

When a current was applied to the organic light emitting devices prepared in Examples 1 to 24 and Comparative Examples 1 to 12, voltage and efficiency were measured (15 mA/cm ² ), and the results are shown in Table 1 below. . The lifetime T95 means the time required for the luminance to decrease from the initial luminance (6000 nit) to 95%.

division matter
(Light emitting layer) Driving voltage (V) Efficiency (cd/A) Life T95 (hr) luminous color Example 1 compound 1 3.85 20.3 143 Red Example 2 compound 2 3.83 20.9 139 Red Example 3 compound 4 3.92 18.3 147 Red Example 4 compound 6 3.77 19.7 143 Red Example 5 compound 8 3.83 18.0 150 Red Example 6 compound 9 3.72 20.3 165 Red Example 7 compound 10 3.78 21.0 163 Red Example 8 compound 11 3.84 18.9 150 Red Example 9 compound 16 3.91 20.5 161 Red Example 10 compound 17 3.82 20.4 164 Red Example 11 compound 18 3.86 18.8 157 Red Example 12 compound 19 3.71 21.1 165 Red Example 13 compound 23 3.76 19.3 144 Red Example 14 compound 24 3.70 21.5 171 Red Example 15 compound 27 3.73 20.8 168 Red Example 16 compound 29 3.80 18.6 165 Red Example 17 compound 30 3.90 17.8 148 Red Example 18 compound 31 3.84 19.2 135 Red Example 19 compound 33 3.92 19.5 158 Red Example 20 compound 35 3.75 20.4 152 Red Example 21 compound 36 3.87 18.5 161 Red Example 22 compound 37 3.84 19.1 153 Red Example 23 compound 39 3.77 20.0 187 Red Example 24 compound 40 3.71 19.3 179 Red Comparative Example 1 C-1 4.24 17.0 104 Red Comparative Example 2 C-2 4.53 15.1 52 Red Comparative Example 3 C-3 4.28 16.2 89 Red Comparative Example 4 C-4 4.06 17.4 117 Red Comparative Example 5 C-5 4.35 16.3 91 Red Comparative Example 6 C-6 4.05 17.1 108 Red Comparative Example 7 C-7 4.09 16.6 94 Red Comparative Example 8 C-8 4.17 16.0 75 Red Comparative Example 9 C-9 4.08 17.1 98 Red Comparative Example 10 C-10 4.17 16.3 79 Red Comparative Example 11 C-11 4.22 15.8 54 Red Comparative Example 12 C-12 4.35 13.2 17 Red

As shown in Table 1, the organic light emitting device of the Example using the compound represented by Formula 1 as the host material of the light emitting layer has superior luminous efficiency and It exhibited significantly improved lifespan characteristics.

Specifically, the device according to the embodiment showed significantly lower driving voltage and improved efficiency characteristics compared to the device of Comparative Example employing Comparative Example compounds C-1 to C-12 as the host material of the light emitting layer. It can be seen that energy transfer from the compound represented by 1 to the red dopant was effectively achieved. In addition, since the organic light emitting device of the above embodiment has improved efficiency as well as lifetime characteristics, it is determined that the compound represented by Formula 1 has high stability for electrons and holes. Therefore, it was confirmed that when the material represented by Formula 1 is used as the host material of the organic light emitting device, the driving voltage, luminous efficiency, and lifespan characteristics of the organic light emitting device can be improved. Considering that in general, the luminous efficiency and lifespan characteristics of the organic light emitting device have a trade-off relationship, it can be seen that the organic light emitting device of the embodiment exhibits significantly improved device characteristics compared to the device of the comparative example.

1: Substrate 2: Anode
3: light emitting layer 4: cathode
5: hole injection layer 6: hole transport layer
7: electron blocking layer 8: hole blocking layer
9: Electron injection and transport layer

Claims (13)

A compound represented by the following formula (1):
[Formula 1]

In Formula 1,
one of Y ₁ to Y ₉ is N, and each other is independently CH, or CD; or
One of Y ₁ to Y ₉ is N, the other is C-L′-R, and the others are each independently CH, or CD,
Here, L' is a single bond; phenylene unsubstituted or substituted with deuterium; Or unsubstituted, or naphthylene substituted with deuterium,
R is any one selected from the group consisting of,

above,
X ₁ and X ₂ are each independently O, S, or N (phenyl),
Z is deuterium (D),
a is each independently an integer of 0 to 5,
b is each independently an integer of 0 to 4,
c is each independently an integer from 0 to 7,
d is each independently an integer from 0 to 6,
e is each independently an integer from 0 to 3,
L is a single bond; Or unsubstituted or substituted with deuterium C _6-20 arylene,
L ₁ and L ₂ are each independently, a single bond; Or unsubstituted or substituted with deuterium C _6-20 arylene,
Ar ₁ and Ar ₂ are each independently, C _6-20 aryl; or C _2-20 heteroaryl comprising one heteroatom selected from the group consisting of N, O and S;
Here, Ar ₁ and Ar ₂ are unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, C _1-10 alkyl and C _6-20 aryl.
The method of claim 1,
one of Y ₁ to Y ₉ is N and all others are CH;
one of Y ₁ to Y ₉ is N and all others are CD;
one of Y ₁ to Y ₉ is N, the other is C-L′-R, and all others are CH; or
one of Y is N, one of the others is C-L'-R, all others are CD;
compound.
delete The method of claim 1,
L' is a single bond,

, or

sign,
compound.
The method of claim 1,
R is any one selected from the group consisting of
compound:

.
According to claim 1,
L is a single bond, or any one selected from the group consisting of
compound:

above,
D means deuterium,
f is each independently an integer from 0 to 4,
g is each independently an integer from 0 to 6.
According to claim 1,
L ₁ and L ₂ are each independently, a single bond; phenylene unsubstituted or substituted with deuterium; biphenyldiyl unsubstituted or substituted with deuterium; or naphthylene unsubstituted or substituted with deuterium;
compound.
The method of claim 1,
Ar ₁ and Ar ₂ are each independently, phenyl, biphenylyl, terphenylyl, naphthyl, phenanthryl, fluorenyl, dibenzofuranyl, dibenzothiophenyl, benzonaphthofuranyl, benzonaphthothiophenyl , carbazolyl, or benzocarbazolyl,
wherein Ar ₁ and Ar ₂ are unsubstituted or substituted with one or more substituents selected from the group consisting of deuterium, C _1-10 alkyl and C _6-20 aryl,
compound.
The method of claim 1,
one of Ar ₁ and Ar ₂ is phenyl, biphenylyl, or naphthyl;
compound.
The method of claim 1,
The compound is represented by any one of the following formulas 1-1 to 1-3,
compound:
[Formula 1-1]

In Formula 1-1,
Q ₁ To Q ₉ are each independently N or CH, provided that one of Q ₁ To Q ₉ is N,
L, L ₁ , L ₂ , Ar ₁ and Ar ₂ are as defined in claim 1,
[Formula 1-2]

In Formula 1-2,
Q ₁ to Q ₆ , Q ₈ and Q ₉ are each independently N or CH, provided that one of Q ₁ to Q ₆ , Q ₈ and Q ₉ is N,
R, L, L ₁ , L ₂ , Ar ₁ and Ar ₂ are as defined in claim 1,
[Formula 1-3]

In Formula 1-3,
Q ₁ to Q ₇ and Q ₉ are each independently N or CH, provided that one of Q ₁ to Q ₇ and Q ₉ is N,
R, L, L ₁ , L ₂ , Ar ₁ and Ar ₂ are as defined in claim 1.
The method of claim 1,
The compound is any one selected from the group consisting of the following compounds,
compound:

.
a first electrode; a second electrode provided to face the first electrode; and at least one organic material layer provided between the first electrode and the second electrode, wherein at least one of the organic material layers is any one of claims 1, 2, and 4 to 11. An organic light-emitting device comprising the compound according to one of the claims.
13. The method of claim 12,
The organic material layer containing the compound is a light emitting layer,
organic light emitting device.

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