CN115960113A - Novel organic compound and organic electroluminescent device comprising the same - Google Patents

Novel organic compound and organic electroluminescent device comprising the same Download PDF

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CN115960113A
CN115960113A CN202211230429.0A CN202211230429A CN115960113A CN 115960113 A CN115960113 A CN 115960113A CN 202211230429 A CN202211230429 A CN 202211230429A CN 115960113 A CN115960113 A CN 115960113A
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金振禹
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Jiangsu Jingrunhong Measurement And Control Technology Co ltd
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Abstract

The present invention provides an organic compound represented by the following formula 1 and an organic electroluminescent device including the organic compound: general formula 1

Description

Novel organic compound and organic electroluminescent device comprising the same
Technical Field
The invention relates to the field of display screens, in particular to an organic compound used in the manufacture of an organic electroluminescent device of a display screen and an organic electroluminescent device containing the compound.
Background
So far, most of the flat panel displays are liquid crystal displays, but there has been a continuous active effort to develop new flat panel displays which are more economical, have more superior performance, and are different from the liquid crystal displays all over the world. Recently, organic electroluminescent devices, which have attracted attention as next-generation flat panel displays, have advantages such as low driving voltage, high response speed, and wide viewing angle, as compared to liquid crystal displays.
According to the structure of the organic electroluminescent device, the organic electroluminescent device is composed of a substrate, an anode, a hole injection layer for receiving holes from the anode, a hole transport layer for transporting holes, an electron blocking layer for blocking electrons from entering the hole transport layer from the light emitting layer, a light emitting layer for emitting light by combining holes and electrons, a hole blocking layer for blocking holes from entering the electron transport layer from the light emitting layer, an electron transport layer for receiving electrons from the cathode and transporting the electrons to the light emitting layer, an electron injection layer for receiving electrons from the cathode, and a cathode. In the case of using a polymer, generally, one polymer may simultaneously perform the roles of the hole transport layer and the emission layer as well as the electron transport layer. The organic thin film layer between the two electrodes can be formed by a vacuum deposition method, a spin coating method, ink jet printing, laser hot stamping, or the like. In order to stabilize the interface between the electrode and the organic material, and in the case of using an organic material, since the difference in the moving speed between holes and electrons is large, the organic electroluminescent device is fabricated in a multi-layer thin film structure, and thus, the holes and the electrons are efficiently transferred to the light-emitting layer by using an appropriate hole transport layer and an appropriate electron transport layer, and the density of the holes and the electrons is equalized, thereby improving the light-emitting efficiency.
The driving principle of the organic electroluminescent device is as follows: when a voltage is applied between the anode and the cathode, holes injected from the anode are transferred to the light-emitting layer through the hole injection layer and the hole transport layer. At the same time, electrons are injected from the cathode into the light-emitting layer via the electron injection layer and the electron transport layer, and recombine with carriers in the light-emitting layer to form excitons. The excitons change to the ground state in this state, and thereby fluorescent molecules of the light-emitting layer emit light to form an image. At this time, the excited state returns to the ground state through the singlet excited state, and the emitted light is called "fluorescence"; the light emitted is called "phosphorescence" by returning to the ground state through the triplet excited state. The probability of returning to the base state by the singlet excited state is 25% (the probability of returning to the triplet excited state is 75%), and therefore, the light emission efficiency is limited. When phosphorescence is used, 75% of the triplet state and 25% of the singlet excited state can be used for light emission, and thus, theoretically, the internal quantum efficiency can reach 100%.
The biggest problems of such organic electroluminescent devices are lifetime and luminous efficiency, which must be solved as the display screen becomes larger in area.
In particular, blue color, although substances such as ADN and DPVBi can be used as host substances and substances such as aromatic amine compounds, phthalocyanine copper compounds, carbazole derivatives, perylene derivatives, coumarin derivatives, and pyrene derivatives can be used as dopants, it is difficult to obtain deep blue color and there is a problem that the lifetime becomes shorter as the wavelength becomes shorter.
Therefore, in the full color display that displays natural colors, development of a material that can emit deep blue light with a long service life and another organic material that is suitable for the energy level of such a blue material is strongly demanded.
Disclosure of Invention
Problems to be solved
The invention aims to solve the defects in the prior art.
The invention provides a blue fluorescent doping substance, thereby improving the luminous efficiency and the luminous life of an organic electroluminescent device.
In addition, the present invention aims to provide an organic electroluminescent device which reduces a driving voltage, improves luminous efficiency and extends a luminous life by including the blue dopant as described above.
In addition, the present invention aims to provide an organic electroluminescent device which further improves the driving voltage, the luminous efficiency of the device and the luminous life by combining a substance containing the above-mentioned blue dopant and a substance containing a specific hole transport layer.
Means for solving the problems
The present invention provides an organic compound represented by the following general formula 1:
general formula 1
Figure BDA0003880882080000031
In the above formula
R1, R2, R3, R4, R5, R6, R7 and R8 are respectively and independently selected from hydrogen, deuterium, oxygen, F, cl, br, I, CN, si (CH) 3 ) 3 、B(OH) 2 Straight or branched chain alkyl of carbon number 1 to 40, alkoxy of carbon number 1 to 40, thiol of carbon number 1 to 40, or cycloalkyl of carbon number 3 to 40.
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 The aromatic hydrocarbon group with 6 to 80 carbon atoms comprises more than one of the group consisting of straight chain or branched chain alkyl with 1 to 40 carbon atoms, alkoxy with 1 to 40 carbon atoms, mercaptan with 1 to 40 carbon atoms, cycloalkyl with 3 to 40 carbon atoms, phenyl, diphenyl, naphthyl, anthryl phenanthryl pyrenyl 9,9-difluorene carbazole dibenzofuran pyrrole triazole type aminobenzopyrazine pyrimidine quinoline substituted by phenyl.
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 Straight chain or branched chain alkyl of 1 to 40 carbon atoms, alkoxy of 1 to 40 carbon atoms, thiol of 1 to 40 carbon atoms, cycloalkyl of 3 to 40 carbon atoms, phenyl, bisphenyl, naphthyl, anthryl substituted with phenyl, phenanthryl, pyrenyl, 9,9-dimethylfluorene, spirobi [ fluorone ]]Carbazole, dibenzofuran, pyrrole, triazole, aminobenzene, pyrazine, pyrimidine and quinolineOne or more substituted or unsubstituted heteroaromatic hydrocarbon groups having a carbon number of 5 to 90 and containing one or more elements selected from the group consisting of S, O, N and Si.
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 One or more substituted or unsubstituted phenyl, bisphenyl, naphthyl, anthryl substituted with phenyl, phenanthryl, pyrenyl, 9,9-dimethylfluorene, carbazole, quinoline, dibenzofuran, pyrrole, triazoles, aminobenzene, pyrazine, pyrimidine and the like selected from the group consisting of straight-chain or branched chain alkyl groups having a carbon number of 1 to 40, alkoxy groups having a carbon number of 1 to 40, thiol having a carbon number of 1 to 40 and cycloalkyl groups having a carbon number of 3 to 40.
Z1 and Z2 are respectively independent single combination or double combination.
M1 and M2 are respectively and independently carbon or nitrogen or oxygen or sulfur.
In addition, the present invention provides an organic electroluminescent device in which one or more organic thin film layers including at least a light-emitting layer are stacked between a cathode and an anode.
The organic electroluminescent element is characterized in that the light-emitting layer contains one or more organic compounds of the present invention.
The organic thin film layer in the above organic electroluminescent device may comprise a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer and an electron injection layer,
the hole transport layer may contain one or more than two organic compounds of the following formula 2:
general formula 2
Figure BDA0003880882080000041
In the above-mentioned formula, the compound has the following formula,
r1, R2, R3 and R4 are each independently selected from hydrogen; a linear or branched alkyl group having a carbon number of 1 to 20; to be selected from
Figure BDA0003880882080000042
Figure BDA0003880882080000043
Or linear or branched alkyl or>
Figure BDA0003880882080000044
Alkoxy, halogen, CN, CF of 3 And Si (CH) 3 ) 3 An aromatic hydrocarbon group having 6 to 60 carbon atoms in the group consisting of one or more substituted or unsubstituted carbon atoms; or in a manner selected from the group consisting of>
Figure BDA0003880882080000045
Is straight-chain or branched alkyl and/or is branched alkyl>
Figure BDA0003880882080000046
Alkoxy of , CN, CF 3 And Si (CH) 3 ) 3 One or more substituted or unsubstituted heteroaromatic hydrocarbon groups having a carbon number of 5 to 60 and containing one or more elements selected from the group consisting of S, O, N and Si,
r1, R2, R3 and R4 are each independently bonded to a phenyl group of the basic structure to form an aromatic hydrocarbon group or a heteroaromatic hydrocarbon group.
ADVANTAGEOUS EFFECTS OF INVENTION
The present invention provides novel organic compounds useful as blue dopant species for improving the luminous efficiency and luminous lifetime of organic electroluminescent devices.
In addition, the present invention provides an organic electroluminescent device that improves driving voltage, luminous efficiency and luminous lifetime by including the blue dopant as described above.
In addition, the present invention provides an organic electroluminescent device which improves driving voltage, luminous efficiency and luminous lifetime by combining a material containing the above blue dopant and a specific hole transport layer.
Detailed Description
The present invention relates to a novel organic compound represented by the following formula 1:
general formula 1
Figure BDA0003880882080000051
In the above formula
R1, R2, R3, R4, R5, R6, R7 and R8 are respectively and independently selected from hydrogen, deuterium, oxygen, F, cl, br, I, CN and Si (CH) 3 ) 3 、B(OH) 2 Straight chain or branched chain alkyl with carbon number of 1 to 40, alkoxy with carbon number of 1 to 40, mercaptan with carbon number of 1 to 40, or cycloalkyl with carbon number of 3 to 40.
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 Straight-chain or branched alkyl with 1 to 40 carbon atoms, alkoxy with 1 to 40 carbon atoms, thiol with 1 to 40 carbon atoms, cycloalkyl with 3 to 40 carbon atoms, phenyl, diphenyl, naphthyl, anthryl substituted by phenyl, phenanthryl, pyrenyl, 9,9-difluorene, carbazole, dibenzofuran, pyrrole, triazole, aminobenzene, pyrazine, pyrimidine and quinoline, and one or more substituted or unsubstituted aromatic hydrocarbon groups with 6 to 80 carbon atoms.
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 Straight chain or branched chain alkyl with carbon number of 1 to 40, alkoxy with carbon number of 1 to 40, mercaptan with carbon number of 1 to 40, cycloalkyl with carbon number of 3 to 40, phenyl, bisphenyl, naphthyl, anthryl substituted by phenyl, phenanthryl, pyrenyl, 9,9-difluorene, spirobi [ fluorolene]One or more substituted or unsubstituted heteroaromatic hydrocarbon groups having a carbon number of 5 to 90, and containing one or more elements selected from the group consisting of S, O, N and Si.
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 More than one substituted or non-substituted phenyl, diphenyl, naphthyl, anthryl, or phenyl substituted by phenyl, straight-chain or branched chain alkyl with 1 to 40 carbon atoms, alkoxyl with 1 to 40 carbon atoms, thiol with 1 to 40 carbon atoms, or cycloalkyl with 3 to 40 carbon atomsSubstituted anthracenyl, phenanthryl, pyrenyl, 9,9-difluorene, carbazole, quinoline, dibenzofuran, pyrrole, triazoles, aminobenzene, pyrazine, pyrimidine and the like.
Z1 and Z2 are respectively independent single combination or double combination.
M1 and M2 are respectively and independently carbon or nitrogen or oxygen or sulfur.
Specific examples of the organic compound include any of the following compounds 1 to 352.
Figure BDA0003880882080000061
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Figure BDA0003880882080000071
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Figure BDA0003880882080000081
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Figure BDA0003880882080000091
/>
Figure BDA0003880882080000101
/>
Figure BDA0003880882080000111
/>
Figure BDA0003880882080000121
/>
Figure BDA0003880882080000131
/>
Figure BDA0003880882080000141
/>
Figure BDA0003880882080000151
/>
Figure BDA0003880882080000161
/>
Figure BDA0003880882080000171
/>
Figure BDA0003880882080000181
/>
Figure BDA0003880882080000191
In addition, the present invention
An organic electroluminescent device is provided, which has one or more organic thin film layers having at least a light-emitting layer laminated between a cathode and an anode.
The organic electroluminescent element is characterized in that the light-emitting layer contains one or two or more of the organic compounds.
The organic thin film layer may include a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and an electron injection layer.
The hole transport layer may contain one or more than two organic compounds of the following formula 2:
general formula 2
Figure BDA0003880882080000201
In the above-mentioned formula, the compound of formula,
r1, R2, R3 and R4 are each independently selected from hydrogen; a linear or branched alkyl group having a carbon number of 1 to 20; to be selected from
Figure BDA0003880882080000203
Figure BDA0003880882080000204
Is straight-chain or branched alkyl and/or is branched alkyl>
Figure BDA0003880882080000205
Alkoxy, halogen, CN, CF of 3 And Si (CH) 3 ) 3 Aromatic hydrocarbon groups of 6 to 60 carbon numbers of one or more substituted or unsubstituted carbons in the group; or is selected from the group consisting of>
Figure BDA0003880882080000206
Is straight-chain or branched alkyl and/or is branched alkyl>
Figure BDA0003880882080000207
Alkoxy of , CN, CF 3 And Si (CH) 3 ) 3 One or more substituted or unsubstituted heteroaromatic hydrocarbon groups having a carbon number of 5 to 60 and containing one or more elements selected from the group consisting of S, O, N and Si,
r1, R2, R3 and R4 are each independently bonded to a phenyl group of the basic structure, and can form an aromatic hydrocarbon group or a heteroaromatic hydrocarbon group.
In the above formula, more preferred is
R1, R2, R3 and R4 are each independently phenyl, bisphenyl, naphthyl, anthryl, phenanthryl, fluorenyl, carbazole or pyrenyl,
or the above R1, R2, R3 and R4 are each independently combined with a phenyl group of the basic structure to form naphthalene, anthracene or phenanthrene.
Specific examples of the organic compound include any of the following compounds 101 to 112.
Figure BDA0003880882080000202
/>
Figure BDA0003880882080000211
The following will exemplify the organic electroluminescent device to which the present invention relates. However, the following descriptions do not limit the organic electroluminescent device according to the present invention.
The manufacturing method of the organic electroluminescent device comprises the following steps: first, an anode material is overmolded on the surface of a substrate by a conventional method to form an anode, and the substrate used is a glass substrate or a transparent plastic substrate having good transparency, surface smoothness, handleability, and water resistance. As the anode material, transparent Indium Tin Oxide (ITO), indium Zinc Oxide (IZO), tin dioxide (SnO) having excellent conductivity can be used 2 ) Zinc oxide (ZnO), and the like.
And then, carrying out vacuum thermal deposition or spin coating on the surface of the anode by using a hole injection layer material (HIL) by adopting a conventional method to form the hole injection layer. The hole injection layer material may be CuPc, m-MTDATA, m-MTDAPB, TCTA of the star amine type, 2-TNATA, or IDE406 commercially available from Idemitsu, japan.
And (3) carrying out vacuum thermal deposition or spin coating on the surface of the hole injection layer by using a conventional method to form the hole transport layer. The hole transport layer material may be alpha-NPD, NPB, or TPD. More preferably, the compound of formula 2 of the present invention is used.
And (3) carrying out vacuum thermal deposition or spin coating on the surface of the hole transport layer by using a conventional method to form the light-emitting layer. The luminescent material can be light-storing fluorescent material, fluorescent brightener, laser pigment, organic scintillator, fluorescence analysis reagent, etc. Specifically, there are carbazole compound, phosphine oxide compound, carbazole phosphine oxide compound, FCNIRpic, alq 3 Anthracene, phenanthrene, pyrene, celot, perylene, coronene, rubrene and polycyclic aromatic compounds like quinacridones, phenylene compounds like quaterphenyl1,4 bis (2-methylstyryl) benzene, 1,4 bis (4-methyl-5-phenyl-2-oxazolyl) benzene, 1,4 bis (5-phenyl 2_ sitting) phenyl, 2,5 bis (5_t _ butyl _2_ benzoxazole sitting) thiophene, 1,4_ biphenyl-1, 3 butadiene, 1,6_ biphenyl-1,3,5-hexatriene, scintillators for liquid scintillation like 1,1,4,4-tetraphenyl-1,3-butadiene, metal carriers for auxin derivatives, coumarin, dicyanomethylene pigments, dicyanomethylene thiopyran pigments, polymethine pigments, hydroxybenzophenone pigments, quinolone pigments, perylene pigments, stilbene compounds, oxadiazole derivatives, stilbene derivatives. In the case of a blue organic electroluminescent device in particular, it is more preferable to use the organic compound of the general formula 1 of the present invention as a dopant.
Optionally, an Electron Blocking Layer (EBL) may be added between the hole transport layer and the light emitting layer.
And (3) carrying out vacuum thermal deposition or spin coating on the surface of the light-emitting layer by adopting a conventional method to form the electron transport layer. The electron transport layer material is not particularly limited, and Alq is preferably used 3
Optionally, a Hole Blocking Layer (HBL) may be further added between the light emitting layer and the electron transporting layer, and a phosphorescent dopant is used together with the light emitting layer, so that an effect of preventing triplet excitons from being diffused to the electron transporting layer may be achieved.
And carrying out vacuum thermal deposition or spin coating on the surface of the light-emitting layer by adopting a conventional method to form the hole blocking layer. The hole blocking layer material is not particularly limited, and Liq, 2_ methyl-8-hydroxyquinoline p-hydroxybiphenyl aluminum (BCP), liF, and the like are preferable.
And (3) carrying out vacuum thermal deposition or spin coating on the surface of the electron transport layer by using an electron injection layer material (EIL) by using a conventional method to form the electron injection layer. The material of the electron injection layer can be LiF, liq and Li 2 O, baO, naCl, csF, etc.
And (3) carrying out vacuum thermal deposition or spin coating on the cathode material on the electron injection layer by adopting a conventional method to form the cathode.
The cathode material used at this time may be Li, al-Li, ca, mg-In, mg-Ag, or the like. In addition, the organic electroluminescent device may be made into a light-transmitting transparent cathode using Indium Tin Oxide (ITO) or Indium Zinc Oxide (IZO).
According to the above-mentioned coating composition, a coating layer (CPL) can be further formed on the surface of the cathode.
According to the above-described method for manufacturing an organic electroluminescent device, it can be manufactured in the order of anode/hole injection layer/hole transport layer/light-emitting layer/electron transport layer/electron injection layer/cathode, and similarly, it can be manufactured in the order of cathode/electron injection layer/electron transport layer/light-emitting layer/hole transport layer/hole injection layer/anode.
The synthesis of compounds of formula 1 and formula 2 is illustrated below by way of example. However, the following methods are not intended to limit the synthesis method of the compound according to the present invention, and the compound according to the present invention can be produced by the following methods and methods known in the art.
Synthesis of Compounds of formula 1
Synthesis of intermediate-2
Figure BDA0003880882080000231
A5L three-necked round-bottomed flask was charged with intermediate-1.8g, copper 170.9g, and N, N-dimethylformamide 3L, and the mixture was refluxed for 12 hours. After completion of the reaction, the N, N-dimethylformamide was distilled, dissolved in 1L of ethyl acetate, and then filtered through celite. The reaction mixture was concentrated, filtered and dried after using 1L of methanol slurry for 30 minutes, to obtain 254.6g of intermediate-2 in 86% yield.
Intermediate-2 MS (FAB): 330 (M +)
Synthesis of intermediate-3
Figure BDA0003880882080000241
A5L three-neck round-bottom flask was charged with intermediate-2.254.6 g, dissolved with MC 3L. The mixture was placed in an ice bath, and boron tribromide was slowly added. After removing the ice bath, the temperature was raised to normal temperature, and after confirming that the reaction was completed, 1L of sodium carbonate was gradually added, and after extracting the organic layer, distillation was performed, and thus 172.6g of intermediate-3.6 g was obtained in 94% yield by n-Hexane/MC recrystallization.
Intermediate-3 MS (FAB): 238 (M +)
Synthesis of intermediate-4
Figure BDA0003880882080000242
Intermediate-3.7 g was added to a 2L three neck round bottom flask and fused in 1.5L of LTHF. The mixture was placed in an ice bath, and 42.5g of lithium aluminum hydride was finely divided and then added slowly. Removing ice bath, heating to normal temperature and stirring for 3 hours. After completion of the reaction, an ice bath was set up, and saturated ammonium chloride was slowly added for neutralization. The THF layer was extracted, then distilled and passed through a chromatography column to obtain intermediate-4.3g in 82% yield.
Intermediate-4 MS (FAB) 210 (M +)
Synthesis of intermediate-5
Figure BDA0003880882080000243
24.9g of intermediate-4 was charged into a 1L three-necked round-bottomed flask, and the mixture was dissolved in 500ml of N, N-dimethylformamide, and 23.2g of N-bromosuccinimide was added slowly while maintaining 0 ℃ after the ice bath was made. After removing the ice bath and raising the temperature to normal temperature, the reaction was completed by distilling N, N-dimethylformamide and passing through a chromatographic column to obtain intermediate-5 26g in 76% yield.
Intermediate-5 MS (FAB): 289 (M +)
Synthesis of intermediate-6
Figure BDA0003880882080000251
Intermediate-4.4 g was added to a 500ML three-necked round bottom flask and fused to MC 200 ML. After an ice bath was set, 45.4g of N-bromosuccinimide was slowly added, and the temperature was raised to normal temperature by removing the ice bath. After the completion of the reaction, 200ml of water was added to extract the organic layer, and the mixture was subjected to distillation and chromatography to obtain intermediate-6.2g in 93% yield.
Intermediate-6 MS (FAB): 368 (M +)
Synthesis of intermediate-7
Figure BDA0003880882080000252
Intermediate-3 119g was added to a 3L three-necked round bottom flask and 1L sulfuric acid was added. An ice bath was set up and then 95g of fuming nitric acid was slowly added. After removing the ice bath, the reaction mixture was stirred at room temperature for 1 hour, after confirming completion of the reaction, the reaction mixture was slowly added to ice water, and the resultant solid was washed with water and dried upon filtration to obtain intermediate-7.3g in a yield of 88%.
Intermediate-7 MS (FAB): 328 (M +)
Synthesis of intermediate-8
Figure BDA0003880882080000261
Intermediate-7.3g was charged to a 5L three-necked round bottom flask followed by 2L of acetic acid. 300ml of concentrated hydrochloric acid was added, and 245.5g of iron was added while stirring, and the mixture was refluxed for 3 hours, and then filtered through diatom ooze in a scalded state after completion of the reaction. Acetic acid was distilled and recrystallized from n-Hexane/MC to obtain intermediate-8.2g in 68% yield.
Intermediate-8 MS (FAB): 268 (M +)
Synthesis of intermediate-9
Figure BDA0003880882080000262
Intermediate-8.2g was added to a 2L three-necked round bottom flask and dissolved in MC 1L. After the ice bath was placed, 117.1g of N-bromosuccinimide was slowly added, and after completion of the reaction was confirmed by removing the ice bath at room temperature, 500ml of water was added and stirred for 30 minutes, N-Hexane 1L was added to the extraction MC layer, then MC was distilled, and the resulting solid was filtered to obtain 117.2g of an intermediate in 92% yield.
Intermediate-9 MS (FAB) 426 (M +)
Synthesis of intermediate-10
Figure BDA0003880882080000271
Intermediate-9.2g was added to a 5L three-necked round bottom flask, and 2L ethanol was added. After adding 200g of sulfuric acid, sodium nitrite was slowly added while stirring. After heating and refluxing for 3 hours, the reaction was confirmed to be completed and then cooled at room temperature. 1L of water was added and ethanol was distilled, and the resulting solid was washed with water, filtered and recrystallized from n-Hexane/MC to obtain intermediate-10.7 g in a yield of 53%.
Intermediate-10 MS (FAB): 395 (M +)
Synthesis of intermediate-11
Figure BDA0003880882080000272
A2L three-necked round bottom flask was charged with 57.7g of intermediate-dissolved in THF1.5L, and after setting an ice bath, 22.1g of lithium aluminum hydride was finely divided and slowly added. Removing ice bath, heating to normal temperature and stirring for 3 hours. After completion of the reaction, an ice bath was set up, saturated ammonium chloride was slowly added to neutralize the reaction solution, and after extraction of a THF layer, 38.6g of an intermediate was obtained by distillation and chromatography.
Intermediate-11 MS (FAB): 368 (M +)
Synthesis of intermediate-12
Figure BDA0003880882080000273
A1L three-necked round-bottomed flask was charged with 38.6g of the intermediate-11, and then charged with nitrogen. THF400ml was added and the temperature was maintained at-78 ℃ with an acetone/dry ice bath. 72ml of 1.6M n-butyllithium was added dropwise thereto, the mixture was stirred for 30 minutes, 50ml of methanol was added thereto, the mixture was heated to room temperature, 200ml of saturated ammonium chloride was added thereto, a THF layer was extracted, the solvent was distilled, and then the mixture was passed through a column chromatography to obtain 1226.4g, which is an intermediate, in 87% yield.
Intermediate-12 MS (FAB): 289 (M +)
Synthesis of intermediate-13
Figure BDA0003880882080000281
A3L three neck round bottom flask was charged with intermediate-8.7 g dissolved in acetonitrile 1.5L. 131g of cupric bromide was added thereto, and the mixture was stirred and heated to 60 ℃. After adding 45.4g of tert-butyl nitrite slowly, stirring was carried out for 1 hour to confirm that the reaction was completed and cooled at room temperature. 1N HCl 1.5L and EA 1.5L were added, the mixture was stirred for 30 minutes, the organic layer was extracted, the mixture was distilled, and the mixture was recrystallized from n-Hexane/MC to obtain intermediate-13 72g in a yield of 62%.
Intermediate-13 MS (FAB): 395 (M +)
Synthesis of intermediate-14
Figure BDA0003880882080000282
Intermediate-13 72g was added to a 3L three-necked round bottom flask dissolved in THF2L. An ice bath was set, 27.6g of lithium aluminum hydride was finely divided, and then the mixture was slowly added thereto, and the ice bath was removed, and the mixture was heated to room temperature and stirred for 3 hours. After completion of the reaction, an ice bath was set, and saturated ammonium chloride was slowly added for neutralization. The THF layer was extracted and distilled over a chromatographic column to give 14.5g of intermediate in 65% yield.
Intermediate-14 MS (FAB): 368 (M +)
Synthesis of intermediate-15
Figure BDA0003880882080000291
A1L three-necked round-bottomed flask was charged with intermediate-14.7 g, nitrogen gas was charged, THF300ml was added, an acetone/dry ice bath was maintained at a temperature of-78 ℃ and 38ml of 1.6M n-butyllithium was added dropwise thereto, the mixture was stirred for 30 minutes, then 50ml of methanol was added thereto, the temperature was raised to room temperature, 200ml of saturated ammonium chloride was added thereto, the THF layer was extracted, the solvent was distilled, and then intermediate-1516.3 g was obtained in 84% yield by chromatography.
Intermediate-15 MS (FAB): 289 (M +)
Synthesis of intermediate-19
Figure BDA0003880882080000292
After adding intermediate-6 g and intermediate-18.63g to a 250ML three-necked round-bottomed flask, 100ML of toluene and 10ML of ethanol were added, 28ML of 2M potassium carbonate and 4.08g of Pd (PPh 3) were further added, and the mixture was refluxed for 12 hours. After confirming the completion of the reaction, the organic layer was distilled off, and recrystallized after passing through a column, whereby 19.13g of intermediate was obtained in a yield of 45%.
Intermediate-19 MS (FAB): 491 (M +)
Synthesis of intermediate-20
Figure BDA0003880882080000301
A250 ML three-necked round-bottomed flask was charged with intermediate-6 10g, charged with nitrogen gas dissolved in 100ML of THF, and then charged with 19ML of 1.6M n-butyllithium while maintaining a dry-ice bath at-78 ℃. After 30 minutes, 4.7g of iodomethane-D is added, stirred for 10 minutes, removed from the ice bath and heated to normal temperature. After confirming the completion of the reaction, THF was distilled off, and after passing through a chromatography column, 207.2g of intermediate was obtained in 86% yield.
Intermediate-20 MS (FAB): 306 (M +)
Synthesis of intermediate-21
Figure BDA0003880882080000302
A250 ML three-necked round bottom flask was charged with intermediate-6, 10g, and filled with nitrogen gas dissolved in 100ML of THF. 19ml of 1.6M n-butyllithium was slowly dropped while maintaining a temperature of-78 ℃ in an acetone/dry ice bath. After 30 minutes, 4.6g of methyl iodide was added, followed by stirring for 10 minutes, ice bath was removed, the temperature was raised to normal temperature, THF was distilled after completion of the reaction was confirmed, and 216.8g of an intermediate was obtained in 83% yield after passing through a column.
Intermediate-21 MS (FAB): 303 (M +)
Synthesis of intermediate-22
Figure BDA0003880882080000311
1.69g (10 mmol) of [1,1' -ethylene ] -4-amine and 4-iodo-1,1 ':4,1' -ethylene 3.56g (10 mmol) were dissolved in 50ml of toluene under nitrogen protection, and then 0.18g (0.2 mmol) of Pd2dba3, 0.4ml (0.4 mmol) of 1M t-Bu3P and 2.88g (30 mmol) of t-BuONa were added thereto and refluxed for 8 hours, respectively.
After the reaction, the temperature of the reaction product was cooled to room temperature, and then extracted with 200ml of toluene and 200ml of water, a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, and after filtration under reduced pressure, the compound produced by concentrating the organic solvent was subjected to column chromatography using an eluent of Hex: EA =4:1 to obtain intermediate-22.02g (76%).
Intermediate-22 MS (FAB): 397 (M +)
Synthesis of intermediate-23
Figure BDA0003880882080000312
3.21g (10 mmol) of di ([ 1,1' -ethylene ] -4-yl) amine and 3.59g (10 mmol) of 4-bromo-4 ' -iodo-1,1 ' -ethylene were injected under nitrogen protection, dissolved in 60ml of toluene, and then placed 0.18g (0.2 mmol) of Pd2dba3, 0.4ml (0.4 mmol) of 1Mt-Bu3P0, 88g (30 mmol) of t-BuONa2.88g, respectively, followed by refluxing for 8 hours.
After completion of the reaction, the reaction mixture was cooled to room temperature, extracted with 200ml of toluene and 200ml of water, and then a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, filtered under reduced pressure, and the resulting compound was concentrated in an organic solvent and then subjected to column chromatography using an eluent of Hex: EA =3:1 to obtain intermediate-23.98g (72%).
Intermediate-23 MS (FAB): 552 (M +)
Synthesis of intermediate-24
Figure BDA0003880882080000321
0.93g (10 mmol) of aniline and 3.56g (10 mmol) of 4-iodo-1,1 '4,1' -terphenyl were injected under nitrogen, dissolved in 50ml of toluene, and then Pd2dba3.18g (0.2 mmol), 1Mt-Bu3P0.4ml (0.4 mmol), and t-BuONA2.88g (30 mmol) were added, followed by refluxing for 8 hours.
After completion of the reaction, the reaction mixture was cooled to room temperature, extracted with 200ml of toluene and 200ml of water, and then a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, filtered under reduced pressure, and the resulting compound was concentrated in an organic solvent and passed through a column chromatography using an eluent of Hex: EA =5:1 to obtain intermediate-24.38g (74%).
Intermediate-24 MS (FAB): 321 (M +)
Synthesis of intermediate-25
Figure BDA0003880882080000322
0.93g (10 mmol) of aniline and 2.80g (10 mmol) of 4-iodo-1,1' -ethylene were injected under nitrogen protection, and after dissolving in 50ml of toluene, pd2dba3.18g (0.2 mmol), 1Mt-Bu3P0.4ml (0.4 mmol), and t-BuONa2.88g (30 mmol) were added, respectively, followed by refluxing for 8 hours.
After completion of the reaction, the reaction mixture was cooled to room temperature, extracted with 200ml of toluene and 200ml of water, and then a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, filtered under reduced pressure, and the resulting compound was concentrated in an organic solvent and then subjected to column chromatography using an eluent of Hex: EA =5:1 to obtain intermediate-25.99g (81%).
Intermediate-25 MS (FAB): 245 (M +)
Synthesis of intermediate-26
Figure BDA0003880882080000331
Intermediate-25.45g (10 mmol) and 4-bromo-4 '-iodo-1,1' -ethylene 3.59g (10 mmol) were injected under nitrogen protection, dissolved in toluene 60ml, and then Pd2dba3.18g (0.2 mmol), 1Mt-Bu3P0.4ml (0.4 mmol) and t-BuONA2.88g (30 mmol) were added, followed by refluxing for 8 hours.
After completion of the reaction, the temperature of the reaction product was cooled to room temperature, and then extracted with 200ml of toluene and 200ml of water, a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, filtered under reduced pressure, and the resulting compound obtained by concentrating the organic solvent was subjected to column chromatography using an eluent of Hex: EA =4:1 to obtain intermediate-26.57g (75%).
Intermediate-26 MS (FAB): 476 (M +)
Synthesis of Compound-11
Figure BDA0003880882080000341
After intermediate-11 g and intermediate-17.9 g were placed in a 250ML three-necked round-bottomed flask, 100ML of toluene and 10ML of ethanol were added, and 47ML of 2M potassium carbonate and 1.08g of Pd (PPh 3) were added to the mixture, and the mixture was refluxed for 12 hours. After confirming that the reaction was completed, the organic layer was extracted, distilled, passed through a column and recrystallized to obtain 8.7g of compound-11.7 in 86% yield.
1H NMR(DMSO,300Hz):δ(ppm)=8.02-7.91(d,4H),7.65-7.52(d,4H),7.50-7.10(m,6H),7.06-6.94(m,2H),6.75-6.65(d,2H),5.30-5.10(s,4H)
MS(FAB):542(M+)
Synthesis of Compound-25
Figure BDA0003880882080000342
After intermediate-6 g and intermediate-17.9g were placed in a 250ML three-necked round-bottomed flask, 100ML of toluene and 10ml of ethanol and 47ML of 2M potassium carbonate and 1.08g of Pd (PPh 3) were added thereto, and the mixture was refluxed for 12 hours under heating, it was confirmed that the reaction was completed, and then the organic layer was extracted and distilled, and the compound-25.5g was obtained in a yield of 84% by recrystallization from a column chromatography.
1H NMR(DMSO,300Hz):δ(ppm)=8.08-7.93(d,4H),7.69-7.54(d,4H),7.52-7.12(m,6H),7.07-6.95(m,2H),6.78-6.66(d,2H),5.30-5.10(s,4H)
MS(FAB):542(M+)
Synthesis of Compound-44
Figure BDA0003880882080000351
Intermediate-14 g and intermediate-16.8g were added followed by toluene 150ML in a 250ML three-neck round-bottom flask. After refluxing 0.1g of palladium acetate, 0.2g of tri-t-butylphosphine (50% in toluene) and 3.6g of sodium t-butoxide with heating, after confirming that the reaction was completed for 3 hours, the reaction mixture was cooled at room temperature, 150ml of ethyl acetate and 150ml of water were added to extract an organic layer, and the organic layer was subjected to column chromatography and then recrystallized to obtain 44.2g of compound in 81% yield.
1H NMR(DMSO,300Hz):δ(ppm)=8.09-7.93(d,2H),7.92-7.84(d,2H),7.78-7.54(m,10H),7.52-7.15(m,18H),7.11-6.95(m,2H),6.73-6.61(s,2H),5.30-5.10(s,4H),1.74-1.63(s,12H
MS(FAB):929(M+)
Synthesis of Compound-55
Figure BDA0003880882080000352
To a 250ML three-necked round-bottomed flask, intermediate-19 g and intermediate-16 g were added, 150mL of toluene was added, and 0.1g of palladium acetate and 0.2g of tri-tert-butylphosphine (50% in toluene) and 2.9g of sodium tert-butoxide were added and then the mixture was refluxed. After completion of the reaction was confirmed after 3 hours, the reaction mixture was cooled at room temperature, 150ml of ethyl acetate and 150ml of water were added to the mixture, and the organic layer was extracted, and the mixture was subjected to column chromatography and recrystallization to obtain 55.7 g of a compound with a yield of 85%.
1H NMR(DMSO,300Hz):δ(ppm)=8.08-7.93(d,1H),7.91-7.84(m,3H),7.78-7.54(m,6H),7.52-7.12(m,17H),7.08-6.94(m,2H),6.79-6.65(d,2H),5.30-5.10(s,4H),1.73-1.63(s,6H)
MS(FAB):771(M+)
Synthesis of Compound-75
Figure BDA0003880882080000361
To a 250ML three-necked round-bottomed flask, intermediate-21 g and intermediate-16.6 g were added, and 150ML of toluene was added. 0.1g of palladium acetate and 0.3g of tri-t-butylphosphine (50% in toluene) and 4.7g of t-butanol were added thereto, followed by heating and refluxing. After completion of the reaction was confirmed for 3 hours, the reaction mixture was cooled at room temperature, 150ml of ethyl acetate and 150ml of water were added to the mixture, and the organic layer was extracted, and the mixture was recrystallized after passing through a chromatography column to obtain 75.3g of the compound in 86% yield.
1H NMR(DMSO,300Hz):δ(ppm)=8.08-7.93(d,1H),7.91-7.84(d,1H),7.78-7.54(m,5H),7.52-7.12(m,9H),7.07-6.95(m,2H),6.78-6.66(d,2H),5.30-5.10(s,4H)2.29-2.18(s,3H),1.72-1.63(s,6H)
MS(FAB):583(M+)
Synthesis of Compound-80
Figure BDA0003880882080000371
After charging intermediate-20.5g and intermediate-16.5g into a 250ML three-necked round-bottomed flask, 150ML of toluene was charged, 0.1g of palladium acetate and 0.3g of tri-tert-butylphosphine (50% in toluene) were added, and 4.7g of sodium tert-butoxide was heated under reflux, and after 3 hours, it was confirmed that the reaction was completed, the reaction mixture was cooled at room temperature, 150ML of ethyl acetate and 150ML of water were added, and the organic layer was extracted, and the mixture was passed through a column and recrystallized to obtain 80.1g of a compound with a yield of 85%.
1H NMR(DMSO,300Hz):δ(ppm)=8.08-7.93(d,1H),7.91-7.84(d,1H),7.78-7.54(m,5H),7.52-7.12(m,9H),7.08-6.94(m,2H),6.79-6.65(d,2H),5.30-5.10(s,4H),1.73-1.63(s,6H)
MS(FAB):586(M+)
Synthesis of Compound-265
Figure BDA0003880882080000372
After charging 6g of intermediate-6 and 13.88g of intermediate-18 into a 250ML three-necked round-bottomed flask, 100ML of toluene, 10ML of ethanol, 47ML of 2M potassium carbonate and 4.08g of Pd (PPh 3) were added thereto, and the mixture was refluxed for 12 hours. After completion of the reaction, the organic layer was distilled off, and the residue was purified by column chromatography and recrystallized to obtain 265.06g of a compound with a yield of 79%.
1H NMR(DMSO,300Hz):δ(ppm)=7.91-7.84(m,4H),7.78-7.54(m,2H),7.52-7.12(m,16H),7.08-6.94(m,2H),6.79-6.65(d,2H),5.30-5.10(s,4H)
MS(FAB):614(M+)
Synthesis of Compound-286
Figure BDA0003880882080000381
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After adding intermediate-13 g and intermediate-16.10g to a 250ML three-neck round-bottom flask, 150ML of toluene was added. 0.1g of palladium acetate, 0.2g of tri-tert-butylphosphine (50% in toluene), and 3.6g of sodium tert-butoxide were added thereto and the mixture was refluxed. After completion of the reaction was confirmed for 3 hours, the reaction mixture was cooled at room temperature, 150ml of ethyl acetate and 150ml of water were added to extract an organic layer, and the mixture was subjected to column chromatography and recrystallization to obtain 286.1 g of the compound with a yield of 75%.
1H NMR(DMSO,300Hz):δ(ppm)=8.09-7.93(d,2H),7.92-7.84(d,2H),7.78-7.54(m,10H),7.52-7.15(m,18H),7.10-6.95(m,2H),6.75-6.61(s,2H),1.74-1.63(s,12H)
MS(FAB):957(M+)
Synthesis of Compounds of formula 2
Synthesis of Compound 2-1
Figure BDA0003880882080000382
Under nitrogen protection, intermediate-23.53g (10 mmol) and intermediate-22.98g (10 mmol) were injected, dissolved in 80ml of toluene, and then added with Pd2dba3 0.18g (0.2 mmol), 1Mt-Bu3P0.4ml (0.4 mmol), t-BuONa2.88g (30 mmol), respectively, followed by refluxing for 8 hours.
After completion of the reaction, the temperature of the reaction product was cooled to room temperature, and after extraction with 250ml of toluene and 250ml of water, a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, and after filtration under reduced pressure, the resulting compound was concentrated in an organic solvent and then subjected to column chromatography using an eluent of Hex: EA =3:1 to obtain 2-1.69g (77%) of the compound.
Compound 2-1 MS (FAB): 869 (M +)
Synthesis of Compounds 2-3
Figure BDA0003880882080000391
Under nitrogen protection, intermediate-23.53g (10 mmol) and intermediate-24.21g (10 mmol) were injected, and after dissolving in toluene 70ml, pd2dba3 0.18g (0.2 mmol), 1Mt-Bu3P0.4ml (0.4 mmol), and t-BuONa2.88g (30 mmol) were added, respectively, followed by refluxing for 8 hours.
After completion of the reaction, the reaction mixture was cooled to room temperature, extracted with 250ml of toluene and 250ml of water, and then a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, filtered under reduced pressure, and the resulting compound was concentrated in an organic solvent and then subjected to column chromatography using an eluent of Hex: EA =3:1 to obtain 2-3.95g (75%).
Compound 2-3 MS (FAB): 793 (M +)
Synthesis of Compounds 2 to 12
Figure BDA0003880882080000401
Under the protection of nitrogen, intermediate-26.76g (10 mmol) and intermediate-24.21g (10 mmol) were injected and dissolved in toluene 60ml, and then Pd2dba3 0.18g (0.2 mmol), 1Mt-Bu3P0.4ml (0.4 mmol) and t-BuONa2.88g (30 mmol) were added thereto and refluxed for 8 hours.
After the reaction, the temperature of the reaction product was cooled to room temperature, and after extraction with 200ml of toluene and 200ml of water, a small amount of water in the organic layer was removed with anhydrous magnesium sulfate, and after filtration under reduced pressure, the resulting compound was concentrated in an organic solvent and then subjected to column chromatography using an eluent of Hex: EA =4:1 to obtain 2 to 12.59g (78%) of the compound.
Compound 2-12 MS (FAB) 716 (M +)
The compound of the above general formula 2 can be synthesized by a known method, which is described in the literature.
The present invention will be described in detail below by way of examples and comparative examples. The following examples and comparative examples are only intended to illustrate the present invention, and the scope of the present invention is not limited to the following examples and comparative examples.
Organic electroluminescent device fabrication
Example 1
Adopts ITO as a reflecting layerA polar substrate material, using N in combination 2 Plasma or UV-Ozone surface treatment. Above the anode substrate, HAT-CN was deposited to a thickness of 10nm to the HIL layer, followed by NPD to a thickness of 120nm to the HTL layer. Depositing 25nm AND on the above HTL layer to obtain blue EML; among them, blue EML was doped with 5% of compound 5 of the general formula 1 of the present invention. A 30nm thick ETL layer was deposited over the above anode to prepare a cathode, which layer was obtained by mixing ET-254 and LiQ in a mass ratio of 1:1, followed by continuing to deposit LiQ on the EIL in a thickness of 10 nm. Finally, a 15nm thick mixture of magnesium and silver mixed in a mass ratio of 9:1 was deposited onto the cathode, and further, a 65nm DNTPD was deposited onto the capping layer above the cathode treated by the above method. And bonding a capping cap (seal cap) containing a moisture absorbent with a UV curable adhesive over the capping layer to protect the organic electroluminescent device from oxygen or moisture in the atmosphere, thereby preparing an organic electroluminescent device.
Examples 2 to 51
Examples
Figure BDA0003880882080000412
The difference from example 1 is that compound 5 in the dock, which is blue EML in example 1, is replaced with compound 11, 19, 25, 31, 33, 35, 44, 55, 65, 75, 80, 82, 85, 95, 100, 105, 109, 111, 113, 115, 119, 120, 124, 134, 140, 145, 149, 151, 153, 156, 158, 160, 165, 180, 195, 199, 214, 234, 245, 265, 286, 297, 302, 308, 310, 315, 319, 344, 347, 352, respectively, and the method of manufacturing the organic electroluminescent device is the same as example 1.
Comparative example 1
The difference from example 1 is that compound 5 of formula 1 in dock as blue EML in example 1, and compound 5 of formula 1 is replaced with 2,5, 8, 11-Tetra-butyl-Perylene (t-Bu-Perylene) in this comparative example, and the method of manufacturing an organic electroluminescent device is identical to example 1.
The compounds used in examples 1 to 51 and comparative example 1 above are as follows.
Figure BDA0003880882080000411
Figure BDA0003880882080000421
Examples performance evaluation of the obtained organic electroluminescent device was prepared.
The above embodiments
Figure BDA0003880882080000423
And comparative example 1 the organic electroluminescent device prepared in this way was tested for its performance at a current density of 10mA/cm 2 The results are shown in Table 1.
TABLE 1
Figure BDA0003880882080000422
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Figure BDA0003880882080000431
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Figure BDA0003880882080000441
Figure BDA0003880882080000451
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As can be seen from the experimental results shown in Table 1, examples of preparing a light emitting layer using the organic compound of formula 1 as a dopant in the present invention
Figure BDA0003880882080000452
The organic electroluminescent device obtained by the preparation had improved efficiency and decreased driving voltage as compared with the conventional organic electroluminescent device described in comparative example 1.
Further, as can be seen from the results of T95, the organic electroluminescent device of comparative example 1 had a lifetime of 100 hours or less, whereas the examples had
Figure BDA0003880882080000453
The lifetime of the organic electroluminescent device obtained by the preparation method is more than 200 hours, particularly, the lifetime of the organic electroluminescent devices of the embodiments 11, 12, 23, 30, 33, 34, 36 and 51 can reach more than 400 hours, so that the problem of limited lifetime of the existing blue material is overcome, and the application of the organic electroluminescent device is further expanded.
Further, examples of preparing a light emitting layer using the organic compound of formula 1 as a dopant in the present invention
Figure BDA0003880882080000454
The organic electroluminescent device obtained was prepared with a remarkably upward result in terms of efficiency and voltage characteristics as compared with the existing organic electroluminescent device described in comparative example 1.
It can thus be seen that the organic electroluminescent device comprising the organic compound of the present formula 1 as a dopant to prepare a light-emitting layer is excellent in the characteristics of efficiency, voltage and lifetime.

Claims (4)

1. An organic compound whose structure is represented by the following general formula (1):
general formula (1)
Figure FDA0003880882070000011
In the above formula
R1, R2, R3, R4, R5, R6, R7 and R8 are respectively and independently selected from hydrogen, deuterium, oxygen, F, cl, br, I, CN, si (CH) 3 ) 3 、B(OH) 2 Straight or branched chain alkyl of carbon number 1 to 40, alkoxy of carbon number 1 to 40, thiol of carbon number 1 to 40, or cycloalkyl of carbon number 3 to 40;
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 a linear or branched alkyl group having 1 to 40 carbon atoms, an alkoxy group having 1 to 40 carbon atoms, a thiol having 1 to 40 carbon atoms, a cycloalkyl group having 3 to 40 carbon atoms, a phenyl group, a bisphenyl group, a naphthyl group, an anthryl group substituted with a phenyl group, a phenanthryl group, a pyrenyl group, 9,9-dimethylfluorene, carbazole, dibenzofuran, pyrrole, triazole, aminobenzene, pyrazine, pyrimidine, quinoline, or one or more aromatic hydrocarbon groups having 6 to 80 carbon atoms substituted or unsubstituted;
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 straight chain or branched chain alkyl of 1 to 40 carbon atoms, alkoxy of 1 to 40 carbon atoms, thiol of 1 to 40 carbon atoms, cycloalkyl of 3 to 40 carbon atoms, phenyl, bisphenyl, naphthyl, anthryl substituted with phenyl, phenanthryl, pyrenyl, 9,9-dimethylfluorene, spirobi [ fluorone ]]One or more substituted or unsubstituted heteroaromatic hydrocarbon groups having a carbon number of 5 to 90, each of which is selected from the group consisting of carbazole, dibenzofuran, pyrrole, triazole, aminobenzene, pyrazine, pyrimidine and quinoline, and contains one or more elements selected from the group consisting of S, O, N and Si;
F、Cl、Br、I、CN、Si(CH 3 ) 3 、B(OH) 2 one or more substituted or unsubstituted phenyl, bisphenyl, naphthyl, anthryl substituted with phenyl, phenanthryl, pyrenyl, 9,9-dimethylfluorene, carbazole, quinoline, dibenzofuran, pyrrole, triazoles, aminobenzene, pyrazine, pyrimidine and the like selected from the group consisting of straight-chain or branched chain alkyl groups having a carbon number of 1 to 40, alkoxy groups having a carbon number of 1 to 40, thiol having a carbon number of 1 to 40 and cycloalkyl groups having a carbon number of 3 to 40;
z1 and Z2 are respectively independent single combination or double combination;
m1 and M2 are each independently carbon, nitrogen, oxygen or sulfur.
2. The organic compound according to claim 1, wherein,
characterized in that the organic compound is any one of the following compounds 1 to 352:
Figure FDA0003880882070000021
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Figure FDA0003880882070000031
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Figure FDA0003880882070000041
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Figure FDA0003880882070000051
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Figure FDA0003880882070000061
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Figure FDA0003880882070000071
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Figure FDA0003880882070000081
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Figure FDA0003880882070000091
/>
Figure FDA0003880882070000101
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Figure FDA0003880882070000111
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Figure FDA0003880882070000121
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Figure FDA0003880882070000131
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Figure FDA0003880882070000141
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Figure FDA0003880882070000151
3. an organic electroluminescent element characterized in that one or more organic thin film layers having at least a light-emitting layer are laminated between a cathode and an anode,
the organic electroluminescent element is characterized in that the light-emitting layer contains one or more organic compounds according to claim 1.
4. An organic electroluminescent element comprising a cathode and an anode, one or more organic thin film layers containing at least a light-emitting layer laminated between the cathode and the anode,
the organic electroluminescent element is characterized in that the organic thin film layer excluding the light-emitting layer contains one or more organic compounds according to claim 1.
CN202211230429.0A 2021-10-11 2022-09-30 Novel organic compound and organic electroluminescent device comprising the same Pending CN115960113A (en)

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