WO2016199743A1 - アリールアミン化合物および有機エレクトロルミネッセンス素子 - Google Patents
アリールアミン化合物および有機エレクトロルミネッセンス素子 Download PDFInfo
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- WO2016199743A1 WO2016199743A1 PCT/JP2016/066838 JP2016066838W WO2016199743A1 WO 2016199743 A1 WO2016199743 A1 WO 2016199743A1 JP 2016066838 W JP2016066838 W JP 2016066838W WO 2016199743 A1 WO2016199743 A1 WO 2016199743A1
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- compound
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- organic
- phenyl
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- -1 Arylamine compound Chemical class 0.000 title claims abstract description 133
- 230000000903 blocking effect Effects 0.000 claims abstract description 43
- 230000005525 hole transport Effects 0.000 claims abstract description 27
- 239000010410 layer Substances 0.000 claims description 131
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 52
- 125000001424 substituent group Chemical group 0.000 claims description 42
- 239000012044 organic layer Substances 0.000 claims description 40
- 125000004432 carbon atom Chemical group C* 0.000 claims description 32
- 238000002347 injection Methods 0.000 claims description 30
- 239000007924 injection Substances 0.000 claims description 30
- 125000002029 aromatic hydrocarbon group Chemical group 0.000 claims description 25
- 125000004435 hydrogen atom Chemical group [H]* 0.000 claims description 20
- 125000006615 aromatic heterocyclic group Chemical group 0.000 claims description 17
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 16
- 125000001624 naphthyl group Chemical group 0.000 claims description 12
- 125000003342 alkenyl group Chemical group 0.000 claims description 11
- 125000003545 alkoxy group Chemical group 0.000 claims description 9
- 125000000217 alkyl group Chemical group 0.000 claims description 9
- 150000004945 aromatic hydrocarbons Chemical class 0.000 claims description 9
- 125000005842 heteroatom Chemical group 0.000 claims description 9
- 125000001792 phenanthrenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C=CC12)* 0.000 claims description 9
- 229910052805 deuterium Inorganic materials 0.000 claims description 8
- 125000004431 deuterium atom Chemical group 0.000 claims description 8
- 125000004104 aryloxy group Chemical group 0.000 claims description 6
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 6
- 229910052801 chlorine Inorganic materials 0.000 claims description 5
- 125000001309 chloro group Chemical group Cl* 0.000 claims description 5
- 125000004093 cyano group Chemical group *C#N 0.000 claims description 5
- 229910052731 fluorine Inorganic materials 0.000 claims description 5
- 125000001153 fluoro group Chemical group F* 0.000 claims description 5
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims description 5
- 125000000843 phenylene group Chemical group C1(=C(C=CC=C1)*)* 0.000 claims description 5
- 125000001140 1,4-phenylene group Chemical group [H]C1=C([H])C([*:2])=C([H])C([H])=C1[*:1] 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 103
- 239000000463 material Substances 0.000 abstract description 73
- 239000010409 thin film Substances 0.000 abstract description 13
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 75
- 238000006243 chemical reaction Methods 0.000 description 73
- 239000000203 mixture Substances 0.000 description 65
- 239000007787 solid Substances 0.000 description 59
- 239000000243 solution Substances 0.000 description 49
- IJGRMHOSHXDMSA-UHFFFAOYSA-N nitrogen Substances N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 41
- 125000000319 biphenyl-4-yl group Chemical group [H]C1=C([H])C([H])=C([H])C([H])=C1C1=C([H])C([H])=C([*])C([H])=C1[H] 0.000 description 40
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 39
- 150000001412 amines Chemical class 0.000 description 37
- 238000001914 filtration Methods 0.000 description 32
- 238000005160 1H NMR spectroscopy Methods 0.000 description 30
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 29
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 description 28
- 229910052757 nitrogen Inorganic materials 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 23
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 20
- 229940125782 compound 2 Drugs 0.000 description 19
- 229910001873 dinitrogen Inorganic materials 0.000 description 19
- 238000000746 purification Methods 0.000 description 18
- 239000012043 crude product Substances 0.000 description 17
- 239000010408 film Substances 0.000 description 17
- 238000000034 method Methods 0.000 description 16
- 239000000843 powder Substances 0.000 description 15
- 239000000758 substrate Substances 0.000 description 14
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 13
- 229910052943 magnesium sulfate Inorganic materials 0.000 description 13
- 235000019341 magnesium sulphate Nutrition 0.000 description 13
- 238000005259 measurement Methods 0.000 description 13
- 239000000741 silica gel Substances 0.000 description 13
- 229910002027 silica gel Inorganic materials 0.000 description 13
- 238000002425 crystallisation Methods 0.000 description 12
- BWHMMNNQKKPAPP-UHFFFAOYSA-L potassium carbonate Chemical compound [K+].[K+].[O-]C([O-])=O BWHMMNNQKKPAPP-UHFFFAOYSA-L 0.000 description 12
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 12
- 238000003786 synthesis reaction Methods 0.000 description 12
- 238000005481 NMR spectroscopy Methods 0.000 description 11
- 230000008025 crystallization Effects 0.000 description 11
- 238000000926 separation method Methods 0.000 description 11
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 10
- 239000012141 concentrate Substances 0.000 description 10
- 229910052739 hydrogen Inorganic materials 0.000 description 10
- 239000001257 hydrogen Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 125000004800 4-bromophenyl group Chemical group [H]C1=C([H])C(*)=C([H])C([H])=C1Br 0.000 description 9
- UHOVQNZJYSORNB-UHFFFAOYSA-N Benzene Chemical compound C1=CC=CC=C1 UHOVQNZJYSORNB-UHFFFAOYSA-N 0.000 description 9
- AVYVHIKSFXVDBG-UHFFFAOYSA-N N-benzyl-N-hydroxy-2,2-dimethylbutanamide Chemical compound C(C1=CC=CC=C1)N(C(C(CC)(C)C)=O)O AVYVHIKSFXVDBG-UHFFFAOYSA-N 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 9
- 229940125773 compound 10 Drugs 0.000 description 9
- ZLVXBBHTMQJRSX-VMGNSXQWSA-N jdtic Chemical compound C1([C@]2(C)CCN(C[C@@H]2C)C[C@H](C(C)C)NC(=O)[C@@H]2NCC3=CC(O)=CC=C3C2)=CC=CC(O)=C1 ZLVXBBHTMQJRSX-VMGNSXQWSA-N 0.000 description 9
- UDQTXCHQKHIQMH-KYGLGHNPSA-N (3ar,5s,6s,7r,7ar)-5-(difluoromethyl)-2-(ethylamino)-5,6,7,7a-tetrahydro-3ah-pyrano[3,2-d][1,3]thiazole-6,7-diol Chemical compound S1C(NCC)=N[C@H]2[C@@H]1O[C@H](C(F)F)[C@@H](O)[C@@H]2O UDQTXCHQKHIQMH-KYGLGHNPSA-N 0.000 description 8
- DEVSOMFAQLZNKR-RJRFIUFISA-N (z)-3-[3-[3,5-bis(trifluoromethyl)phenyl]-1,2,4-triazol-1-yl]-n'-pyrazin-2-ylprop-2-enehydrazide Chemical compound FC(F)(F)C1=CC(C(F)(F)F)=CC(C2=NN(\C=C/C(=O)NNC=3N=CC=NC=3)C=N2)=C1 DEVSOMFAQLZNKR-RJRFIUFISA-N 0.000 description 8
- KKHFRAFPESRGGD-UHFFFAOYSA-N 1,3-dimethyl-7-[3-(n-methylanilino)propyl]purine-2,6-dione Chemical compound C1=NC=2N(C)C(=O)N(C)C(=O)C=2N1CCCN(C)C1=CC=CC=C1 KKHFRAFPESRGGD-UHFFFAOYSA-N 0.000 description 8
- FMKGJQHNYMWDFJ-CVEARBPZSA-N 2-[[4-(2,2-difluoropropoxy)pyrimidin-5-yl]methylamino]-4-[[(1R,4S)-4-hydroxy-3,3-dimethylcyclohexyl]amino]pyrimidine-5-carbonitrile Chemical compound FC(COC1=NC=NC=C1CNC1=NC=C(C(=N1)N[C@H]1CC([C@H](CC1)O)(C)C)C#N)(C)F FMKGJQHNYMWDFJ-CVEARBPZSA-N 0.000 description 8
- 229940126540 compound 41 Drugs 0.000 description 8
- 229940125936 compound 42 Drugs 0.000 description 8
- 229940127113 compound 57 Drugs 0.000 description 8
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 8
- 239000000706 filtrate Substances 0.000 description 8
- 239000011521 glass Substances 0.000 description 8
- 230000009477 glass transition Effects 0.000 description 8
- RENRQMCACQEWFC-UGKGYDQZSA-N lnp023 Chemical compound C1([C@H]2N(CC=3C=4C=CNC=4C(C)=CC=3OC)CC[C@@H](C2)OCC)=CC=C(C(O)=O)C=C1 RENRQMCACQEWFC-UGKGYDQZSA-N 0.000 description 8
- NFHFRUOZVGFOOS-UHFFFAOYSA-N palladium;triphenylphosphane Chemical compound [Pd].C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=CC=C1P(C=1C=CC=CC=1)C1=CC=CC=C1 NFHFRUOZVGFOOS-UHFFFAOYSA-N 0.000 description 8
- SCVFZCLFOSHCOH-UHFFFAOYSA-M potassium acetate Chemical compound [K+].CC([O-])=O SCVFZCLFOSHCOH-UHFFFAOYSA-M 0.000 description 8
- LWIHDJKSTIGBAC-UHFFFAOYSA-K tripotassium phosphate Chemical compound [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 8
- BWHDROKFUHTORW-UHFFFAOYSA-N tritert-butylphosphane Chemical compound CC(C)(C)P(C(C)(C)C)C(C)(C)C BWHDROKFUHTORW-UHFFFAOYSA-N 0.000 description 8
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 7
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 6
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 6
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 6
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 6
- HXITXNWTGFUOAU-UHFFFAOYSA-N dihydroxy-phenylborane Natural products OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 description 6
- 238000010438 heat treatment Methods 0.000 description 6
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 6
- 229910000027 potassium carbonate Inorganic materials 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- JQAGNDRJKSDTEU-UHFFFAOYSA-N 2-bromo-1,3,5-triphenylbenzene Chemical compound BrC1=C(C=2C=CC=CC=2)C=C(C=2C=CC=CC=2)C=C1C1=CC=CC=C1 JQAGNDRJKSDTEU-UHFFFAOYSA-N 0.000 description 5
- YLQBMQCUIZJEEH-UHFFFAOYSA-N Furan Chemical compound C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 5
- BEBLXYZXQGRFKD-UHFFFAOYSA-N [4-(4-phenyl-n-(4-phenylphenyl)anilino)phenyl]boronic acid Chemical compound C1=CC(B(O)O)=CC=C1N(C=1C=CC(=CC=1)C=1C=CC=CC=1)C1=CC=C(C=2C=CC=CC=2)C=C1 BEBLXYZXQGRFKD-UHFFFAOYSA-N 0.000 description 5
- IPWKHHSGDUIRAH-UHFFFAOYSA-N bis(pinacolato)diboron Chemical compound O1C(C)(C)C(C)(C)OB1B1OC(C)(C)C(C)(C)O1 IPWKHHSGDUIRAH-UHFFFAOYSA-N 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 239000002356 single layer Substances 0.000 description 5
- RFFLAFLAYFXFSW-UHFFFAOYSA-N 1,2-dichlorobenzene Chemical compound ClC1=CC=CC=C1Cl RFFLAFLAYFXFSW-UHFFFAOYSA-N 0.000 description 4
- UCCUXODGPMAHRL-UHFFFAOYSA-N 1-bromo-4-iodobenzene Chemical compound BrC1=CC=C(I)C=C1 UCCUXODGPMAHRL-UHFFFAOYSA-N 0.000 description 4
- HEDRZPFGACZZDS-UHFFFAOYSA-N Chloroform Chemical compound ClC(Cl)Cl HEDRZPFGACZZDS-UHFFFAOYSA-N 0.000 description 4
- PCLIMKBDDGJMGD-UHFFFAOYSA-N N-bromosuccinimide Chemical compound BrN1C(=O)CCC1=O PCLIMKBDDGJMGD-UHFFFAOYSA-N 0.000 description 4
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 4
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 4
- 150000001454 anthracenes Chemical class 0.000 description 4
- 235000010290 biphenyl Nutrition 0.000 description 4
- 239000004305 biphenyl Substances 0.000 description 4
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 description 4
- 238000001816 cooling Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 4
- 125000001041 indolyl group Chemical group 0.000 description 4
- PQXKHYXIUOZZFA-UHFFFAOYSA-M lithium fluoride Chemical compound [Li+].[F-] PQXKHYXIUOZZFA-UHFFFAOYSA-M 0.000 description 4
- 125000004430 oxygen atom Chemical group O* 0.000 description 4
- 125000002080 perylenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC5=CC=CC(C1=C23)=C45)* 0.000 description 4
- 235000011056 potassium acetate Nutrition 0.000 description 4
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 description 4
- BBEAQIROQSPTKN-UHFFFAOYSA-N pyrene Chemical compound C1=CC=C2C=CC3=CC=CC4=CC=C1C2=C43 BBEAQIROQSPTKN-UHFFFAOYSA-N 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- 125000004434 sulfur atom Chemical group 0.000 description 4
- WRECIMRULFAWHA-UHFFFAOYSA-N trimethyl borate Chemical compound COB(OC)OC WRECIMRULFAWHA-UHFFFAOYSA-N 0.000 description 4
- 229910000404 tripotassium phosphate Inorganic materials 0.000 description 4
- 235000019798 tripotassium phosphate Nutrition 0.000 description 4
- 238000007740 vapor deposition Methods 0.000 description 4
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 4
- KZPYGQFFRCFCPP-UHFFFAOYSA-N 1,1'-bis(diphenylphosphino)ferrocene Chemical compound [Fe+2].C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1.C1=CC=C[C-]1P(C=1C=CC=CC=1)C1=CC=CC=C1 KZPYGQFFRCFCPP-UHFFFAOYSA-N 0.000 description 3
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 3
- WKBOTKDWSSQWDR-UHFFFAOYSA-N Bromine atom Chemical group [Br] WKBOTKDWSSQWDR-UHFFFAOYSA-N 0.000 description 3
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- ZMXDDKWLCZADIW-UHFFFAOYSA-N N,N-Dimethylformamide Chemical compound CN(C)C=O ZMXDDKWLCZADIW-UHFFFAOYSA-N 0.000 description 3
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 description 3
- 150000004982 aromatic amines Chemical class 0.000 description 3
- 125000003118 aryl group Chemical group 0.000 description 3
- HFACYLZERDEVSX-UHFFFAOYSA-N benzidine Chemical class C1=CC(N)=CC=C1C1=CC=C(N)C=C1 HFACYLZERDEVSX-UHFFFAOYSA-N 0.000 description 3
- 125000000499 benzofuranyl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 description 3
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 3
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 0.000 description 3
- 125000004541 benzoxazolyl group Chemical group O1C(=NC2=C1C=CC=C2)* 0.000 description 3
- 150000001716 carbazoles Chemical group 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 238000006880 cross-coupling reaction Methods 0.000 description 3
- 125000000000 cycloalkoxy group Chemical group 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 125000004988 dibenzothienyl group Chemical group C1(=CC=CC=2SC3=C(C21)C=CC=C3)* 0.000 description 3
- 239000002019 doping agent Substances 0.000 description 3
- 239000007772 electrode material Substances 0.000 description 3
- 125000001301 ethoxy group Chemical group [H]C([H])([H])C([H])([H])O* 0.000 description 3
- 125000003914 fluoranthenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC=C4C1=C23)* 0.000 description 3
- 125000002541 furyl group Chemical group 0.000 description 3
- 150000002391 heterocyclic compounds Chemical class 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 125000003454 indenyl group Chemical group C1(C=CC2=CC=CC=C12)* 0.000 description 3
- 125000005956 isoquinolyl group Chemical group 0.000 description 3
- 125000001570 methylene group Chemical group [H]C([H])([*:1])[*:2] 0.000 description 3
- 239000011259 mixed solution Substances 0.000 description 3
- IBHBKWKFFTZAHE-UHFFFAOYSA-N n-[4-[4-(n-naphthalen-1-ylanilino)phenyl]phenyl]-n-phenylnaphthalen-1-amine Chemical compound C1=CC=CC=C1N(C=1C2=CC=CC=C2C=CC=1)C1=CC=C(C=2C=CC(=CC=2)N(C=2C=CC=CC=2)C=2C3=CC=CC=C3C=CC=2)C=C1 IBHBKWKFFTZAHE-UHFFFAOYSA-N 0.000 description 3
- 125000003226 pyrazolyl group Chemical group 0.000 description 3
- 125000001725 pyrenyl group Chemical group 0.000 description 3
- 125000004076 pyridyl group Chemical group 0.000 description 3
- 125000000714 pyrimidinyl group Chemical group 0.000 description 3
- 125000000168 pyrrolyl group Chemical group 0.000 description 3
- 150000004322 quinolinols Chemical class 0.000 description 3
- 125000005493 quinolyl group Chemical group 0.000 description 3
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 3
- 150000003336 secondary aromatic amines Chemical class 0.000 description 3
- 125000001544 thienyl group Chemical group 0.000 description 3
- 125000004306 triazinyl group Chemical group 0.000 description 3
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 description 3
- PXLYGWXKAVCTPX-UHFFFAOYSA-N 1,2,3,4,5,6-hexamethylidenecyclohexane Chemical class C=C1C(=C)C(=C)C(=C)C(=C)C1=C PXLYGWXKAVCTPX-UHFFFAOYSA-N 0.000 description 2
- SXWIAEOZZQADEY-UHFFFAOYSA-N 1,3,5-triphenylbenzene Chemical class C1=CC=CC=C1C1=CC(C=2C=CC=CC=2)=CC(C=2C=CC=CC=2)=C1 SXWIAEOZZQADEY-UHFFFAOYSA-N 0.000 description 2
- FCEHBMOGCRZNNI-UHFFFAOYSA-N 1-benzothiophene Chemical compound C1=CC=C2SC=CC2=C1 FCEHBMOGCRZNNI-UHFFFAOYSA-N 0.000 description 2
- HYZJCKYKOHLVJF-UHFFFAOYSA-N 1H-benzimidazole Chemical compound C1=CC=C2NC=NC2=C1 HYZJCKYKOHLVJF-UHFFFAOYSA-N 0.000 description 2
- RIPZSADLUWTEFQ-UHFFFAOYSA-N 4-(4-bromophenyl)dibenzofuran Chemical compound C1=CC(Br)=CC=C1C1=CC=CC2=C1OC1=CC=CC=C21 RIPZSADLUWTEFQ-UHFFFAOYSA-N 0.000 description 2
- ZOKIJILZFXPFTO-UHFFFAOYSA-N 4-methyl-n-[4-[1-[4-(4-methyl-n-(4-methylphenyl)anilino)phenyl]cyclohexyl]phenyl]-n-(4-methylphenyl)aniline Chemical compound C1=CC(C)=CC=C1N(C=1C=CC(=CC=1)C1(CCCCC1)C=1C=CC(=CC=1)N(C=1C=CC(C)=CC=1)C=1C=CC(C)=CC=1)C1=CC=C(C)C=C1 ZOKIJILZFXPFTO-UHFFFAOYSA-N 0.000 description 2
- ZCYVEMRRCGMTRW-UHFFFAOYSA-N 7553-56-2 Chemical group [I] ZCYVEMRRCGMTRW-UHFFFAOYSA-N 0.000 description 2
- VFUDMQLBKNMONU-UHFFFAOYSA-N 9-[4-(4-carbazol-9-ylphenyl)phenyl]carbazole Chemical group C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 VFUDMQLBKNMONU-UHFFFAOYSA-N 0.000 description 2
- UJOBWOGCFQCDNV-UHFFFAOYSA-N 9H-carbazole Chemical compound C1=CC=C2C3=CC=CC=C3NC2=C1 UJOBWOGCFQCDNV-UHFFFAOYSA-N 0.000 description 2
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229920001609 Poly(3,4-ethylenedioxythiophene) Polymers 0.000 description 2
- JUJWROOIHBZHMG-UHFFFAOYSA-N Pyridine Chemical compound C1=CC=NC=C1 JUJWROOIHBZHMG-UHFFFAOYSA-N 0.000 description 2
- KAESVJOAVNADME-UHFFFAOYSA-N Pyrrole Chemical compound C=1C=CNC=1 KAESVJOAVNADME-UHFFFAOYSA-N 0.000 description 2
- SMWDFEZZVXVKRB-UHFFFAOYSA-N Quinoline Chemical compound N1=CC=CC2=CC=CC=C21 SMWDFEZZVXVKRB-UHFFFAOYSA-N 0.000 description 2
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- WLPUWLXVBWGYMZ-UHFFFAOYSA-N tricyclohexylphosphine Chemical compound C1CCCCC1P(C1CCCCC1)C1CCCCC1 WLPUWLXVBWGYMZ-UHFFFAOYSA-N 0.000 description 1
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Images
Classifications
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/54—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to two or three six-membered aromatic rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C211/00—Compounds containing amino groups bound to a carbon skeleton
- C07C211/43—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
- C07C211/57—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton
- C07C211/61—Compounds containing amino groups bound to a carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton having amino groups bound to carbon atoms of six-membered aromatic rings being part of condensed ring systems of the carbon skeleton with at least one of the condensed ring systems formed by three or more rings
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D209/00—Heterocyclic compounds containing five-membered rings, condensed with other rings, with one nitrogen atom as the only ring hetero atom
- C07D209/56—Ring systems containing three or more rings
- C07D209/80—[b, c]- or [b, d]-condensed
- C07D209/82—Carbazoles; Hydrogenated carbazoles
- C07D209/88—Carbazoles; Hydrogenated carbazoles with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to carbon atoms of the ring system
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D307/00—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom
- C07D307/77—Heterocyclic compounds containing five-membered rings having one oxygen atom as the only ring hetero atom ortho- or peri-condensed with carbocyclic rings or ring systems
- C07D307/91—Dibenzofurans; Hydrogenated dibenzofurans
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/06—Luminescent, e.g. electroluminescent, chemiluminescent materials containing organic luminescent materials
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K50/00—Organic light-emitting devices
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- H—ELECTRICITY
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- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/80—Constructional details
- H10K59/875—Arrangements for extracting light from the devices
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/633—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising polycyclic condensed aromatic hydrocarbons as substituents on the nitrogen atom
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K85/00—Organic materials used in the body or electrodes of devices covered by this subclass
- H10K85/60—Organic compounds having low molecular weight
- H10K85/631—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine
- H10K85/636—Amine compounds having at least two aryl rest on at least one amine-nitrogen atom, e.g. triphenylamine comprising heteroaromatic hydrocarbons as substituents on the nitrogen atom
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- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/02—Ortho- or ortho- and peri-condensed systems
- C07C2603/04—Ortho- or ortho- and peri-condensed systems containing three rings
- C07C2603/06—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members
- C07C2603/10—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings
- C07C2603/12—Ortho- or ortho- and peri-condensed systems containing three rings containing at least one ring with less than six ring members containing five-membered rings only one five-membered ring
- C07C2603/18—Fluorenes; Hydrogenated fluorenes
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Definitions
- the present invention relates to a compound suitable for an organic electroluminescent device which is a self-luminous device suitable for various display devices, and to the device, and more specifically, an arylamine compound and an organic electroluminescent device using the compound (hereinafter referred to as organic EL) Also referred to as an element).
- organic EL organic electroluminescent device using the compound
- the organic EL element is a self-luminous element, it is brighter than the liquid crystal element and has excellent visibility and enables clear display. Therefore, active research has been done.
- organic EL device using the organic material practical by developing a laminated structure device in which various functions are shared by the respective materials.
- Such an organic EL device is formed by laminating tris (8-hydroxyquinoline) aluminum (Alq 3 ), which is a phosphor capable of transporting electrons, and an aromatic amine compound capable of transporting holes. It is As a result, both charges were injected into the phosphor layer to emit light, and a high luminance of 1000 cd / m 2 or more was obtained at a voltage of 10 V or less.
- each layer in the laminated structure is further subdivided, and the efficiency is increased by an electroluminescent device provided with an anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, an electron injection layer and a cathode on a substrate. And durability has come to be achieved.
- the light emitting layer can also be produced by doping a charge transporting compound generally referred to as a host material with a fluorescent compound, a phosphorescent compound, or a material that emits delayed fluorescence.
- a charge transporting compound generally referred to as a host material
- a fluorescent compound generally referred to as a fluorescent compound
- a phosphorescent compound or a material that emits delayed fluorescence.
- the choice of the organic material in the organic EL element greatly affects various characteristics such as the efficiency and durability of the element.
- the organic EL element charges injected from both electrodes are recombined in the light emitting layer to obtain light emission. Therefore, in the organic EL element, it is important how efficiently both holes and electrons are transferred to the light emitting layer, and it is necessary to make the element excellent in carrier balance.
- the hole injection property is enhanced, and the electron blocking property that blocks electrons injected from the cathode is improved, thereby improving the probability of the hole and the electron recombining, and further, the exciton generated in the light emitting layer When confined, high luminous efficiency can be obtained. Therefore, the role played by the hole transport material is important, and a hole transport material with high hole injection property, high hole mobility, high electron blocking property, and high electron resistance is required. ing.
- the heat resistance and the amorphous property of the material are also important.
- heat generated at the time of device operation causes thermal decomposition even at low temperatures, and the materials deteriorate.
- crystallization of the thin film occurs even in a short time, and the device is degraded. Therefore, the material to be used is required to have high heat resistance and good amorphousness.
- Examples of hole transport materials that have been used in organic EL devices include N, N'-diphenyl-N, N'-di ( ⁇ -naphthyl) benzidine (NPD) and various aromatic amine derivatives (patent Reference 1 and 2).
- NPD N, N'-diphenyl-N, N'-di ( ⁇ -naphthyl) benzidine (NPD) and various aromatic amine derivatives (patent Reference 1 and 2).
- NPD has good hole transportability
- its glass transition point (Tg) which is an indicator of heat resistance, is as low as 96 ° C., and deterioration of device characteristics due to crystallization occurs under high temperature conditions.
- Patent Documents 3 and 4 propose an arylamine compound having a substituted carbazole structure as a compound having improved properties such as heat resistance and hole injection property.
- heat resistance and luminous efficiency etc. have been improved, it can not be said that it is still sufficient and further drive voltage reduction and further light emission efficiency improvement It has been demanded.
- the object of the present invention is as a material of an organic EL device, (1) excellent in hole injecting property, (2) excellent in hole transporting ability, (3) electron blocking ability, (4) thin film state It is an object of the present invention to provide an organic compound having high stability in (5) and (5) excellent heat resistance.
- Another object of the present invention is to provide an organic EL device which is (1) high in luminous efficiency and power efficiency, (2) low in practical driving voltage and (3) long life using this compound. .
- the present inventors pay attention to the fact that the aromatic tertiary amine structure has high hole injecting / transporting ability, and the heat resistance and thin film of the aromatic tertiary amine structure are also provided.
- Monoamine compounds having a novel triarylamine structure were designed and chemically synthesized in anticipation of the effect on stability. Then, various organic EL devices were produced on trial using the compound, and the characteristics of the devices were carefully evaluated. As a result, the present invention has been completed.
- the present invention is an arylamine compound represented by the following general formula (1).
- Ar 1 to Ar 4 which may be the same or different, each represents an aromatic hydrocarbon group, an aromatic heterocyclic group or a fused polycyclic aromatic group, n represents an integer of 1 to 3;
- L represents a bivalent group of an aromatic hydrocarbon, a bivalent group of an aromatic heterocyclic ring, or a bivalent group of a fused polycyclic aromatic group,
- R 1 to R 3 which may be the same or different, are a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, A cycloalkyl group having 5 to 10 carbon atoms, an alkenyl group having 2 to 6 carbon atoms, an alkyloxy group having 1 to 6 carbon atoms, a cycloalkyl oxy group having 5 to 10 carbon atoms, an aromatic
- Ar 3 and Ar 4 may be the same or different and are an aromatic hydrocarbon group or a fused polycyclic aromatic group having no hetero atom
- L is a phenylene group
- L is a 1,4-phenylene group, Is preferred.
- the above-mentioned arylamine compound is used in the organic layer.
- An element is provided.
- the organic layer is preferably a hole transport layer, an electron blocking layer, a hole injection layer or a light emitting layer.
- the arylamine compound of the present invention is a novel compound, and has higher hole mobility, excellent electron blocking ability, stable thin film state, and excellent heat resistance than conventional hole transport materials. .
- the arylamine compound of the present invention has a high hole injection property, a high mobility, a high electron blocking property, and a high stability to electrons, as compared with conventional materials. Therefore, in the organic EL device using the arylamine compound of the present invention as a constituent material of the hole injection layer and / or the hole transport layer, excitons generated in the light emitting layer can be confined, and holes and electrons are further generated. The probability of recombining can be improved, and high luminous efficiency can be obtained. In addition, the driving voltage is reduced to improve the durability.
- the arylamine compound of the present invention has excellent electron blocking ability, is superior in hole transportability to conventional materials, and has high stability in a thin film state. Therefore, in the organic EL device using the arylamine compound of the present invention as a constituent material of the electron blocking layer, the driving voltage is lowered while the light emission efficiency is high, the current resistance is improved, and the maximum light emission luminance is improved. .
- the arylamine compound of the present invention is superior in hole transportability to a conventional material and has a wide band gap. Therefore, using the arylamine compound of the present invention as a host material and supporting a fluorescent emitter, a phosphorescent emitter, or a material emitting a delayed fluorescence called a dopant to form a light emitting layer, the driving voltage is lowered, An organic EL device with improved luminous efficiency can be realized.
- the arylamine compound of the present invention is useful as a constituent material of the hole injection layer, the hole transport layer, the electron blocking layer or the light emitting layer of the organic EL device.
- the organic EL device of the present invention has high luminous efficiency and power efficiency, which can lower the practical driving voltage of the device. In addition, the light emission start voltage can be lowered to improve the durability.
- FIG. 2 is a 1 H-NMR chart of Compound 2 of Example 1.
- FIG. 6 is a 1 H-NMR chart of compound 10 of Example 2.
- FIG. 6 is a 1 H-NMR chart of compound 41 of Example 3.
- FIG. 16 is a 1 H-NMR chart of compound 42 of Example 4.
- 5 is a 1 H-NMR chart of Compound 57 of Example 5.
- FIG. 16 is a 1 H-NMR chart of Compound 62 of Example 6.
- FIG. 16 is a 1 H-NMR chart of compound 91 of Example 7.
- FIG. 16 is a 1 H-NMR chart of compound 92 of Example 8.
- FIG. 16 is a 1 H-NMR chart of compound 70 of Example 9.
- FIG. 16 is a 1 H-NMR chart of compound 94 of Example 10.
- FIG. 2 is a view showing Compound 1 to Compound 10 which are arylamine compounds of the present invention.
- FIG. 2 is a view showing Compound 11 to Compound 18, which are arylamine compounds of the present invention.
- FIG. 2 is a view showing compounds 19 to 26 which are arylamine compounds of the present invention.
- FIG. 2 is a view showing Compound 27 to Compound 34, which are arylamine compounds of the present invention.
- FIG. 6 is a view showing Compound 35 to Compound 44, which are arylamine compounds of the present invention.
- FIG. 6 is a view showing Compound 45 to Compound 54, which are arylamine compounds of the present invention.
- FIG. 16 is a view showing Compound 55 to Compound 64 which are arylamine compounds of the present invention.
- FIG. 16 is a diagram showing Compound 65 to Compound 74 which are arylamine compounds of the present invention.
- FIG. 6 is a diagram showing Compound 75 to Compound 82, which are arylamine compounds of the present invention.
- FIG. 16 is a diagram showing Compound 83 to Compound 92, which are arylamine compounds of the present invention.
- FIG. 16 is a diagram showing Compound 93 to Compound 95, which are arylamine compounds of the present invention.
- the arylamine compound of the present invention is a novel compound and is represented by the following general formula (1).
- Ar 1 , Ar 2 , Ar 3 and Ar 4 which may be the same or different, each represent an aromatic hydrocarbon group, an aromatic heterocyclic group or a fused polycyclic aromatic group.
- Specific examples of the aromatic hydrocarbon group, aromatic heterocyclic group or fused polycyclic aromatic group represented by Ar 1 to Ar 4 include phenyl group, biphenylyl group, terphenylyl group, naphthyl group, anthracenyl group, phenanthrenyl group Group, fluorenyl group, indenyl group, pyrenyl group, perylenyl group, fluoranthenyl group, triphenylenyl group, pyridyl group, pyrimidinyl group, triazinyl group, furyl group, pyrrolyl group, thienyl group, quinolyl group, isoquinolyl group, benzofuranyl group, benzo Thienyl group, indolyl group, carbazolyl group
- the aromatic hydrocarbon group, the aromatic heterocyclic group or the fused polycyclic aromatic group represented by Ar 1 to Ar 4 may be unsubstituted or may have a substituent.
- substituents include the following groups in addition to the deuterium atom, the cyano group and the nitro group.
- a halogen atom such as fluorine atom, chlorine atom, bromine atom, iodine atom etc .
- Alkyl groups having 1 to 6 carbon atoms such as methyl group, ethyl group, n-propyl group, isopropyl group, n-butyl group, isobutyl group, tert-butyl group, n-pentyl group, isopentyl group, neopentyl group, n- Hexyl group etc
- An alkyloxy group having 1 to 6 carbon atoms such as a methyloxy group, an ethyloxy group, a propyloxy group and the like
- An alkenyl group such as a vinyl group, an allyl group and the like
- Aryloxy groups such as phenyloxy, tolyloxy and the like
- Arylalkyloxy group such as benzyloxy group, phenethyloxy group etc .
- substituents may be unsubstituted, they may be further substituted by the substituents exemplified above.
- substituents do not have to be present independently to form a ring, but they may be bonded to each other via a single bond, a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom. May be formed.
- n represents the number of groups L and is an integer of 1 to 3.
- n is 2 or 3
- a plurality of L may be the same or different.
- L represents a divalent group of aromatic hydrocarbon, a divalent group of aromatic heterocyclic ring, or a divalent group of fused polycyclic aromatic group.
- the divalent group of the aromatic hydrocarbon, the divalent group of the aromatic heterocyclic ring or the divalent group of the fused polycyclic aromatic group represented by L is selected from the aromatic hydrocarbon, the aromatic heterocycle or the fused polycyclic aromatic group It can be done by removing two hydrogen atoms.
- aromatic hydrocarbon, aromatic heterocyclic ring or fused polycyclic aromatic ring in this case include benzene, biphenyl, terphenyl, tetrakisphenyl, styrene, naphthalene, anthracene, acenaphthalene, fluorene, phenenethrene, indane, Pyrene, triphenylene, pyridine, pyrimidine, triazine, pyrrole, furan, thiophene, quinoline, isoquinoline, benzofuran, benzothiophene, indoline, carbazole, carboline, benzoxazole, benzothiazole, quinoxaline, benzoimidazole, pyrazole, dibenzofuran, dibenzothiophene, naphthyridine , Phenanthroline, acridinin, etc.
- the aromatic hydrocarbon, the aromatic heterocycle or the fused polycyclic aromatic may be unsubstituted or may have a substituent.
- substituents those similar to the substituents which may be possessed by the aromatic hydrocarbon group, the aromatic heterocyclic group or the fused polycyclic aromatic group represented by Ar 1 to Ar 4 above can be mentioned You can raise it.
- the aspect which a substituent can take is also the same.
- R 1 , R 2 and R 3 may be the same or different, and a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an alkyl group having 1 to 6 carbon atoms, 5 to 10 carbon atoms Cycloalkyl group, alkenyl group having 2 to 6 carbon atoms, alkyloxy group having 1 to 6 carbon atoms, cycloalkyloxy group having 5 to 10 carbon atoms, aromatic hydrocarbon group, aromatic heterocyclic group, fused polycyclic ring Represents an aromatic group or an aryloxy group.
- the alkyl group having 1 to 6 carbons, the alkenyl group having 2 to 6 carbons and the alkyloxy group having 1 to 6 carbons may be linear or branched.
- R 1 to R 3 may be independently present to form no ring, but they may be combined to form a ring via a single bond, a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom It may be done.
- alkyl group having 1 to 6 carbon atoms, the cycloalkyl group having 5 to 10 carbon atoms, or the alkenyl group having 2 to 6 carbon atoms represented by R 1 to R 3 include a methyl group, an ethyl group and n -Propyl, isopropyl, n-butyl, isobutyl, tert-butyl, n-pentyl, isopentyl, neopentyl, n-hexyl, cyclopentyl, cyclohexyl, 1-adamantyl, 2-adamantyl Groups, vinyl groups, allyl groups, isopropenyl groups, 2-butenyl groups and the like.
- the alkyl group having 1 to 6 carbon atoms, the cycloalkyl group having 5 to 10 carbon atoms, or the alkenyl group having 2 to 6 carbon atoms represented by R 1 to R 3 may be unsubstituted but has a substituent. It is also good. Examples of the substituent include the following groups in addition to the deuterium atom, the cyano group and the nitro group.
- a halogen atom such as fluorine atom, chlorine atom, bromine atom, iodine atom etc .
- An alkyloxy group having 1 to 6 carbon atoms such as a methyloxy group, an ethyloxy group, a propyloxy group and the like;
- An alkenyl group such as a vinyl group, an allyl group and the like;
- Aryloxy groups such as phenyloxy, tolyloxy and the like;
- Arylalkyloxy group such as benzyloxy group, phenethyloxy group etc .
- Aromatic hydrocarbon group or fused polycyclic aromatic group such as phenyl group, biphenyl group, terphenylyl group, naphthyl group, anthracenyl group, phenanthrenyl group, fluorenyl group, indenyl group, pyrenyl group, perylenyl group, fluoranthenyl group , Triphenylen
- substituents may be unsubstituted or may be substituted by any of the above exemplified substituents.
- substituents do not have to be present independently to form a ring, but they may be bonded to each other via a single bond, a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom. May be formed.
- alkyloxy group having 1 to 6 carbon atoms or the cycloalkyloxy group having 5 to 10 carbon atoms represented by R 1 to R 3 include methyloxy group, ethyloxy group, n-propyloxy group, isopropyl Oxy group, n-butyloxy group, tert-butyloxy group, n-pentyloxy group, n-hexyloxy group, cyclopentyloxy group, cyclohexyloxy group, cycloheptyloxy group, cyclooctyloxy group, 1-adamantyloxy group, 2 -Adamantyloxy group etc. can be mentioned.
- These groups may be unsubstituted or may have a substituent.
- a substituent which the alkyl group having 1 to 6 carbon atoms, the cycloalkyl group having 5 to 10 carbon atoms or the alkenyl group having 2 to 6 carbon atoms represented by R 1 to R 3 may have. The same thing as what was shown as can be mentioned. The aspect which a substituent can take is also the same.
- the aromatic hydrocarbon group, the aromatic heterocyclic group or the fused polycyclic aromatic group represented by R 1 to R 3 includes the aromatic hydrocarbon group represented by Ar 1 to Ar 4 and the aromatic heterocycle described above Mention may be made of the same ones as described for the groups or fused polycyclic aromatic groups. These groups may be unsubstituted or may have a substituent. As the substituent, those similar to the substituents which may be possessed by the aromatic hydrocarbon group, the aromatic heterocyclic group or the fused polycyclic aromatic group represented by Ar 1 to Ar 4 above can be mentioned You can raise it. The aspect which a substituent can take is also the same.
- aryloxy group represented by R 1 to R 3 include phenyloxy group, biphenylyloxy group, terphenylyloxy group, naphthyloxy group, anthracenyloxy group, phenanthrenyloxy group And fluorenyloxy group, indenyloxy group, pyrenyloxy group, perylenyloxy group and the like. These groups may be unsubstituted or may have substituents. As the substituent, those similar to the substituents which may be possessed by the aromatic hydrocarbon group, the aromatic heterocyclic group or the fused polycyclic aromatic group represented by Ar 1 to Ar 4 above can be mentioned You can raise it. The aspect which a substituent can take is also the same.
- Ar 1 and Ar 2 may be the same or different and are preferably an aromatic hydrocarbon group or a fused polycyclic aromatic group having no hetero atom (eg, nitrogen atom, oxygen atom, sulfur atom, etc.) It is more preferably a phenyl group, a naphthyl group, a phenanthrenyl group or a fluorenyl group, and particularly preferably a phenyl group having a substituent or a fluorenyl group having a substituent.
- a substituent of the phenyl group a phenyl group, a biphenylyl group, a terphenylyl group, a naphthyl group, a phenanthrenyl group or a fluorenyl group is preferable.
- a substituent of the fluorenyl group a methyl group or a phenyl group is preferable.
- Ar 1 or Ar 2 has a substituent
- Ar 1 or Ar 2 have such substituents, L to the benzene ring, and is bonded to such a benzene ring, Ar 3, Ar 4 and It is preferable to have a structure different from that of R 1 to R 3 .
- Ar 3 and Ar 4 which may be the same or different, are preferably an aromatic hydrocarbon group or a fused polycyclic aromatic group having no hetero atom, and do not have an aromatic hydrocarbon group or a hetero atom It is more preferable that it is a condensed polycyclic aromatic group, and such an aromatic hydrocarbon group and a condensed polycyclic aromatic group are unsubstituted.
- Ar 3 and Ar 4 may be the same or different and are preferably a phenyl group, a biphenylyl group, a naphthyl group, a phenanthrenyl group or a fluorenyl group, and an unsubstituted phenyl group, an unsubstituted biphenylyl group, an unsubstituted group It is more preferable that it is a naphthyl group of the following, or a fluorenyl group having a substituent.
- a substituent of a fluorenyl group a methyl group is preferable.
- Ar 3 and Ar 4 are preferably the same group, and more preferably, Ar 3 , Ar 4 and R 2 are the same group.
- the “same group” includes the case where the basic skeletons are the same and have different substituents, or the case where the basic skeleton and the substituents are the same and the substitution positions are different, but the presence or absence of the substituent, the type of the substituent and the substitution It is particularly preferred if the positions of the radicals are all identical.
- L is preferably an aromatic hydrocarbon divalent group or a fused polycyclic aromatic divalent group having no hetero atom, and is obtained by removing two hydrogen atoms from benzene, biphenyl, naphthalene or phenanthrene.
- a group is more preferable, a bivalent group (phenylene group) formed by removing two hydrogen atoms from benzene is particularly preferable, and an unsubstituted phenylene group is most preferable.
- bonding mode of phenylene group bonding at para position is preferable, that is, 1,4-phenylene group is preferable.
- N is preferably 1 from the viewpoint of synthesis.
- R 1 and R 3 may be the same or different, and are preferably a hydrogen atom or a deuterium atom, and from the viewpoint of synthesis, a hydrogen atom is more preferable.
- an aromatic hydrocarbon group or a fused polycyclic aromatic group having no hetero atom is preferable, a phenyl group, a biphenylyl group, a naphthyl group, a phenanthrenyl group or a fluorenyl group is more preferable, and an unsubstituted phenyl group, An unsubstituted biphenylyl group, an unsubstituted naphthyl group or a fluorenyl group having a substituent is more preferable.
- a substituent of the fluorenyl group a methyl group is preferable.
- arylamine compounds of the present invention specific examples of preferred compounds are shown in FIGS. 12 to 22, but the arylamine compounds of the present invention are not limited to these compounds.
- Me in the structural formula represents a methyl group.
- the arylamine compound of the present invention is a novel compound and can be synthesized, for example, as follows. First, using any primary or secondary aromatic amine derivative and an aromatic halide, a known cross coupling reaction such as Ullmann coupling or suzuki coupling is performed to obtain a secondary or tertiary aromatic amine derivative. Synthesize. The obtained secondary or tertiary aromatic amine derivative is halogenated by a known method to obtain a halogeno secondary amine derivative or a halogeno tertiary amine derivative (these are generically called a halide).
- a boronic acid or a boronic acid ester derivative can be synthesized by reacting the resulting halide with pinacolborane, bis (pinacolato) diboron, trimethyl borate and the like.
- any aromatic hydrocarbon compound (for example, 1,3,5-triphenylbenzene derivative) is halogenated by a known method to obtain a halogenoaromatic hydrocarbon compound.
- a target arylamine compound can be synthesized by performing known cross coupling reaction such as Suzuki coupling using the obtained halogenoaromatic hydrocarbon compound and the above boronic acid or boronic acid ester derivative.
- the above-mentioned production method is an example, and other than that, as in Examples 7 to 10, known cross-coupling reactions and halogenation reactions can be appropriately combined to obtain a target arylamine compound.
- Purification of the obtained compound can be carried out by purification by column chromatography, adsorption purification with silica gel, activated carbon, activated clay or the like, recrystallization with a solvent, crystallization method, sublimation purification method or the like.
- Identification of compounds can be performed by NMR analysis. As a physical property value, measurement of a glass transition point (Tg) and a work function can be performed.
- the glass transition point (Tg) is an indicator of the stability of the thin film state.
- the glass transition point (Tg) can be determined by using a powder and a high sensitivity differential scanning calorimeter (DSC3100S manufactured by Bruker AXS).
- the work function is an index of hole transportability.
- the work function can be measured by preparing a thin film of 100 nm on an ITO substrate and using an ionization potential measuring device (PYS-202 type manufactured by Sumitomo Heavy Industries, Ltd.).
- the arylamine compound of the present invention is suitable as a material of an organic layer in an organic EL device.
- the organic EL device (hereinafter sometimes referred to as the organic EL device of the present invention) formed using the arylamine compound of the present invention is, for example, a glass substrate or a transparent plastic substrate (for example, a polyethylene terephthalate substrate)
- An anode, a hole injection layer, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode are sequentially formed on a substrate.
- the organic EL device of the present invention may further have an electron blocking layer between the hole transport layer and the light emitting layer.
- a hole blocking layer may be provided between the light emitting layer and the electron transporting layer.
- You may have an electron injection layer between an electron carrying layer and a cathode.
- the organic EL device of the present invention it is possible to omit or combine several organic layers, for example, to form a layer which serves as a hole injection layer and a hole transport layer, an electron injection layer and an electron transport A layer that doubles as a layer can also be formed.
- a layer which serves as a hole injection layer and a hole transport layer an electron injection layer and an electron transport A layer that doubles as a layer can also be formed.
- the transparent anode 2, the hole injection layer 3, the hole transport layer 4, the electron blocking layer 5, the light emitting layer 6, the electron transport layer 7, the electron injection layer 8 and the cathode 9 are formed on the glass substrate 1.
- the layer configuration of the organic EL element formed in this order is shown.
- each layer which comprises the organic EL element of this invention is demonstrated.
- an electrode material having a large work function such as ITO or gold is used for the anode 2.
- Hole injection layer 3 In addition to the arylamine compound of the present invention, known compounds such as porphyrin compounds represented by copper phthalocyanine; starburst type triphenylamine derivatives; various triphenylamine tetramers etc. can be used in the hole injection layer 3 Materials: Acceptable heterocyclic compounds such as hexacyanoazatriphenylene; and coated polymeric materials can be used.
- a plurality of materials may be mixed and provided for film formation.
- the partial structure of P-doped trisbromophenylamine hexachloroantimony, radialene derivative (see WO 2014/009310) or the like, or benzidine derivative such as TPD is included in the partial structure thereof.
- a high molecular compound or the like may be used.
- the positive hole injection layer 3 can be obtained.
- a spin coat method and an inkjet method other than a vapor deposition method using these materials, the positive hole injection layer 3 can be obtained.
- Each layer described below can be similarly obtained by forming a thin film by a known method such as a spin coating method or an inkjet method in addition to the vapor deposition method.
- the hole transport layer 4 In addition to the arylamine compound of the present invention, known compounds having hole transportability can be used for the hole transport layer 4. The following can be illustrated as a well-known compound which has hole transportability.
- Benzidine derivatives such as N, N'-diphenyl-N, N'-di (m-tolyl) benzidine (TPD), N, N'-diphenyl-N, N'-di ( ⁇ -naphthyl) benzidine (NPD), N, N, N ', N'- tetrabiphenylyl benzidine etc; 1,1-bis [4- (di-4-tolylamino) phenyl] cyclohexane (TAPC); Various triphenylamine trimers or tetramers; Although these materials may be separately used for film formation, a plurality of materials may be mixed and provided for film formation.
- the hole transport layer 4 may have a single layer structure or a multiple layer structure.
- materials usually used in the layer are further P-doped with trisbromophenylamine hexachloroantimony, radialene derivative (for example, see WO 2014/009310), etc.
- radialene derivative for example, see WO 2014/009310
- a polymer compound having a structure of a benzidine derivative such as TPD in its partial structure can be used.
- a coating type polymer material such as poly (3,4-ethylenedioxythiophene) (PEDOT) / poly (styrene sulfonate) (PSS) is used be able to.
- PEDOT poly (3,4-ethylenedioxythiophene)
- PSS poly (styrene sulfonate)
- Electrode blocking layer 5 For the electron blocking layer 5, in addition to the arylamine compound of the present invention, a compound having a known electron blocking action can be used. The following can be illustrated as a compound which has a well-known electron blocking effect.
- Carbazole derivatives such as 4,4 ′, 4 ′ ′-tri (N-carbazolyl) triphenylamine (TCTA), 9,9-bis [4- (carbazol-9-yl) phenyl] fluorene, 1,3-bis (carbazol-9-yl) benzene (mCP), 2,2-bis (4-carbazol-9-ylphenyl) adamantane (Ad-Cz) and the like;
- a compound having a triphenylsilyl group and a triarylamine structure For example, 9- [4- (carbazol-9-yl) phenyl] -9- [4- (Triphenylsilyl) phenyl] -9H-fluorene and the
- Light emitting layer 6 For the light emitting layer 6, known light emitting materials can be used. As known light emitting materials, metal complexes of quinolinol derivatives including Alq 3 and various metal complexes; anthracene derivatives; bisstyryl benzene derivatives; pyrene derivatives; oxazole derivatives; polyparaphenylene vinylene derivatives; Can.
- known light emitting materials metal complexes of quinolinol derivatives including Alq 3 and various metal complexes; anthracene derivatives; bisstyryl benzene derivatives; pyrene derivatives; oxazole derivatives; polyparaphenylene vinylene derivatives; Can.
- the light emitting layer 6 may be composed of a host material and a dopant material.
- a host material in addition to the arylamine compound of the present invention and the light emitting material, a heterocyclic compound having an indole ring as a partial structure of a fused ring; a heterocyclic compound having a carbazole ring as a partial structure of a fused ring; Derivatives; benzimidazole derivatives; polydialkylfluorene derivatives; anthracene derivatives; and the like can be used.
- an amine derivative having a fluorene ring as a partial structure of a fused ring As a dopant material, an amine derivative having a fluorene ring as a partial structure of a fused ring; quinacridone, coumarin, rubrene, perylene, pyrene and derivatives thereof, benzopyran derivative, indenophenanthrene derivative, rhodamine derivative, aminostyryl derivative, etc. are used be able to.
- the light emitting layer 6 may have a single layer structure or a multiple layer structure.
- a phosphorescence material as a light emitting material.
- a phosphorescence light emitter a phosphorescence light emitter of metal complex such as iridium and platinum can be used.
- green phosphorescent emitters such as Ir (ppy) 3 ; blue phosphorescent emitters such as FIrpic and FIr 6; red phosphorescent emitters such as Btp 2 Ir (acac); and the like can be used. .
- the host material at this time for example, the following hole injecting / transporting host materials can be used.
- Carbazole derivatives such as 4,4'-di (N-carbazolyl) biphenyl (CBP), TCTA, mCP, etc .; Arylamine compounds of the present invention;
- the following electron transporting host materials can be used.
- TPBI p-Bis (triphenylsilyl) benzene
- TPBI 2,2 ', 2''-(1,3,5-phenylene) -tris (1-phenyl-) 1H-benzimidazole)
- the doping of the phosphorescent light emitting material into the host material is preferably carried out by co-evaporation in the range of 1 to 30 weight percent with respect to the entire light emitting layer to avoid concentration quenching.
- PICCB a material that emits delayed fluorescence
- PIC-TRZ a material that emits delayed fluorescence
- CC2TA a material that emits delayed fluorescence
- PXZ-TRZ a material that emits delayed fluorescence
- 4CzIPN a material that emits delayed fluorescence
- a hole blocking layer (not shown) can be provided between the light emitting layer 6 and the electron transporting layer 7.
- a known compound having a hole blocking function can be used for the hole blocking layer.
- Phenanthroline derivatives such as vasocuproin (BCP); Metal complexes of quinolinol derivatives, such as aluminum (III) bis (2-methyl-8-quinolinate) -4- Phenyl phenolate (BAlq) and the like; Various rare earth complexes; Triazole derivatives; Triazine derivatives; Oxadiazole derivatives;
- the hole blocking layer may have a single layer structure or a multiple layer structure.
- Electrode transport layer 7 The following known compounds can be used for the electron transport layer 7.
- Metal complexes of quinolinol derivatives such as Alq 3 , BAlq; Various metal complexes; Triazole derivatives; Triazine derivatives; Oxadiazole derivatives; Pyridine derivatives; A pyrimidine derivative; Benzimidazole derivatives; Thiadiazole derivatives; Anthracene derivatives; Carbodiimide derivatives; Quinoxaline derivatives; Pyridoindole derivatives; Phenanthroline derivatives; Silole derivatives; Although these materials may be separately used for film formation, a plurality of materials may be mixed and provided for film formation.
- the electron transport layer 7 may have a single layer structure or a multiple layer structure.
- the electron injection layer 8 may be made of an alkali metal salt such as lithium fluoride or cesium fluoride; an alkaline earth metal salt such as magnesium fluoride; a metal oxide such as aluminum oxide; This can be omitted in the preferred choice of and.
- an alkali metal salt such as lithium fluoride or cesium fluoride
- an alkaline earth metal salt such as magnesium fluoride
- a metal oxide such as aluminum oxide
- an electrode material having a low work function such as aluminum or an alloy having a lower work function such as a magnesium silver alloy, a magnesium indium alloy, or an aluminum magnesium alloy is used as an electrode material.
- Example 1 Compound 2 Synthesis of N, N-bis (biphenyl-4-yl) -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine; (Step 1) In the nitrogen substituted reaction vessel, 50.7 g of 1,3,5-triphenylbenzene and 500 ml of chloroform After adding Bromine 29.1g was added and stirred at room temperature for 16 hours to adjust the reaction solution. A saturated aqueous sodium sulfite solution was added to the reaction solution and the mixture was stirred, and a liquid separation operation was performed to collect an organic layer. The organic layer was dried over magnesium sulfate and concentrated under reduced pressure to obtain a crude product. The crude product was dispersed and washed with hexane. As a result, 55.0 g (yield 86%) of white powder of 2-bromo-1,3,5-triphenylbenzene was obtained.
- Step 2 In the nitrogen substituted reaction vessel, 5.0 g of the obtained 2-bromo-1,3,5-triphenylbenzene, 6.9 g of 4- ⁇ N, N-bis (biphenyl-4-yl) amino ⁇ phenyl boronic acid, 8.3 g of tripotassium phosphate, 90 ml of 1,4-dioxane and 10 ml of water was added and nitrogen gas was bubbled for 30 minutes to obtain a mixture. In such a mixture, 0.087 g of palladium (II) acetate and 0.25 g of tricyclohexylphosphine was added and heated, and stirred at 85 ° C. for 6 hours to obtain a reaction solution.
- N- (biphenyl-4-yl) -N-phenyl-N- (1,1) obtained in a nitrogen substituted reaction vessel 17.0 g of 1 ': 4', 1 ''-terphenyl-4-yl) amine and 340 ml of dimethylformamide After adding N-bromosuccinimide 7.0 g And stirred for 13 hours at room temperature to obtain a mixture. To the mixture was added methanol, and the precipitated solid was collected by filtration.
- Example 3 Compound 41 N- (biphenyl-4-yl) -N- (9,9-dimethyl-9H-fluoren-2-yl) -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine Synthetic; In the nitrogen substituted reaction vessel, N- (biphenyl-4-yl) -N- (4-bromophenyl)- 71.9 g of N- (9,9-dimethyl-9H-fluoren-2-yl) amine and 360 ml of tetrahydrofuran was added and cooled to -78.degree. C. to obtain a mixture.
- Example 4 Compound 42 Synthesis of N, N-bis (9,9-dimethyl-9H-fluoren-2-yl) -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine; In Example 1, Instead of 4- ⁇ N, N-bis (biphenyl-4-yl) amino ⁇ phenylboronic acid N, N-bis (9,9-dimethyl-9H-fluoren-2-yl)- The reaction was carried out using N- ⁇ 4- (4,4,5,5-tetramethyl- [1,3,2] dioxaborane-2-yl) phenyl ⁇ amine under the same conditions. As a result, 11.0 g (yield 91%) of white powder of compound 42 was obtained. (Compound 42)
- Example 5 Compound 57 N- (biphenyl-4-yl) -N- ⁇ p- (9,9-dimethyl-9H-fluoren-2-yl) phenyl ⁇ -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ Phenyl] amine synthesis;
- the mixture was heated with 1.4 g of tetrakistriphenylphosphine palladium added thereto, and stirred at 85 ° C. for 4 hours to obtain a reaction solution.
- the reaction solution was cooled to room temperature, and toluene was added to carry out a liquid separation operation to collect an organic layer.
- the organic layer was dried over magnesium sulfate and concentrated under reduced pressure to give a crude product. Hexane was added to the obtained crude product to carry out crystallization purification, and the precipitated solid was collected by filtration.
- Example 6 Compound 62 N- (biphenyl-4-yl) -N- (9,9-diphenyl-9H-fluoren-2-yl) -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine Synthetic; In the nitrogen substituted reaction vessel, 10.0 g of 2-amino-9,9-biphenyl-9H-fluorene, 7.3 g of 4-bromobiphenyl, Sodium tert-butoxide 4.3 g and toluene 100 ml was added and nitrogen gas was bubbled for 40 minutes to obtain a mixture.
- N- (biphenyl-4-yl) -N- (4-bromophenyl) -N- (9,9-diphenyl-9H-fluoren-2-yl) amine obtained in a nitrogen-substituted reaction vessel 12.9 g
- 100 ml of tetrahydrofuran was cooled to -68.degree. C. to obtain a mixture.
- 15 ml of a hexane solution (1.6 M) of n-butyllithium was added dropwise to the mixture over 20 minutes, the mixture was stirred for 40 minutes.
- 3 ml of trimethyl borate was added dropwise over 15 minutes, and the mixture was stirred at -68 ° C. for 1 hour.
- Example 7 Compound 91 N- ⁇ p- (phenanthrenyl-9-yl) phenyl ⁇ -N- (1,1 ': 4', 1 ''-terphenyl-4-yl) -N- [4- ⁇ (2,4,6 Synthesis of -triphenyl) phenyl ⁇ phenyl] amine;
- 100.0 g of 4-bromodiphenylamine, 123.0 g of bis (pinacolato) diboron, 98.9 g of potassium acetate and 1000 ml of 1,4-dioxane was added and nitrogen gas was bubbled for 30 minutes to obtain a mixture.
- the mixed solution was added with 6.6 g of ⁇ 1,1′-bis (diphenylphosphino) ferrocene ⁇ palladium, heated, and stirred at 100 ° C. for 6 hours to obtain a reaction solution.
- the reaction solution was cooled to room temperature, then toluene and water were added thereto to carry out a liquid separation operation, and the organic layer was collected.
- the organic layer was dried over magnesium sulfate and concentrated under reduced pressure. Hexane was added to the concentrated solution, the mixture was cooled in a freezer, and the precipitated solid was collected by filtration.
- Example 8 Compound 92 N- (biphenyl-4-yl) -N- (9,9-dimethyl-9H-fluoren-2-yl) -N- [4 '- ⁇ (2,4,6-triphenyl) -1,1' The synthesis of -biphenyl-4-yl ⁇ phenyl] amine; In the nitrogen substituted reaction vessel, 4- ⁇ N- (biphenyl-4-yl) -N- obtained in Example 3 20.0 g of (9,9-dimethyl-9H-fluoren-2-yl) amino ⁇ phenylboronic acid, 12.9 g of 1-bromo-4-iodobenzene, 11.5 g of potassium carbonate, 160 ml of toluene, 40 ml ethanol and 40 ml water was added and nitrogen gas was bubbled for 45 minutes to obtain a mixture.
- the mixed solution was added with 1.0 g of tetrakistriphenylphosphine palladium, heated, and stirred at 74 ° C. for 8 hours to obtain a reaction solution. After cooling the reaction solution to room temperature, water was added and liquid separation operation was performed to collect an organic layer. The organic layer was dried over magnesium sulfate and concentrated under reduced pressure. Toluene was dissolved in the concentrate and dropped into methanol. The precipitated solid was collected by filtration.
- reaction solution was cooled to room temperature, toluene and water were added, and a liquid separation operation was performed to collect an organic layer.
- the organic layer was dried over magnesium sulfate and concentrated under reduced pressure to give a crude product. Crystallization purification was performed by adding methanol to the crude product. The precipitated solid was collected by filtration.
- N- (biphenyl-4-yl) -N- (9,9-dimethyl-9H-fluoren-2-yl) -N- ⁇ p- (4,4,5,5-tetramethyl-1, 7.3 g (yield 68%) of a white solid of 3,2-dioxaborane-2-yl) biphenyl ⁇ amine were obtained.
- Example 9 Compound 70 Synthesis of N- (biphenyl-4-yl) -N- (9-phenyl-9H-carbazol-3-yl) -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine; (Step 1) In the nitrogen substituted reaction vessel, 50.0 g of N- (4-bromobiphenyl) -4-biphenylamine, 47.0 g of bis (pinacolato) diboron, 37.8 g of potassium acetate and 500 ml of 1,4-dioxane was added and nitrogen gas was bubbled for 50 minutes to obtain a mixture.
- Step 2 N- (biphenyl-4-yl) -N- ⁇ 4- (4,4,5,5) obtained in a nitrogen substituted reaction vessel 51.2 g of 5-tetramethyl-1,3,2-dioxaborane-2-yl) phenyl ⁇ amine, 20.0 g of 2-bromo-1,3,5-triphenylbenzene, 22.1 g of tripotassium phosphate, 200 ml of 1,4-dioxane and 60 ml of water was added and nitrogen gas was bubbled for 35 minutes to obtain a mixture. 0.6 g of tetrakistriphenylphosphine palladium was added to the mixture and heated, and the mixture was stirred at 86 ° C.
- Step 3 N- (biphenyl-4-yl) -N- ⁇ 4- (2,4,6-) obtained in a nitrogen substituted reaction vessel 6.0 g of triphenylphenyl) phenyl ⁇ amine, 3.9 g of 3-bromo-9-phenyl-9H-carbazole, 1.6 g of sodium tert-butoxide and 60 ml of toluene was added and nitrogen gas was bubbled for 45 minutes to obtain a mixture. In the mixture, 0.1 g of palladium acetate and 0.2 g of tri-tert-butylphosphine was added and heated, and stirred at 104 ° C. for 3 hours to obtain a reaction solution.
- Example 10 Compound 94 Synthesis of N- (biphenyl-4-yl) -N- ⁇ 4- (dibenzofuran-4-yl) phenyl ⁇ -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine;
- N- (biphenyl-4-yl) -N- ⁇ 4- (dibenzofuran-4-yl) phenyl ⁇ -N- [4- ⁇ (2,4,6-triphenyl) phenyl ⁇ phenyl] amine In the nitrogen substituted reaction vessel, 10.0 g of 1-bromo-4-iodobenzene, 7.9 g of 4-dibenzofuranyl boronic acid, 9.8 g of potassium carbonate, 80 ml of toluene, 20 ml ethanol and 40 ml water was added and nitrogen gas was bubbled for 40 minutes to obtain a mixture.
- the glass transition temperature of the arylamine compound of the present invention was determined using a high sensitivity differential scanning calorimeter (DSC3100S, manufactured by Bruker AXS). Glass transition point (° C) Compound of Example 1 (Compound 2) 110 Compound of Example 2 (Compound 10) 121 Compound of Example 3 (Compound 41) 121 Compound of Example 4 (Compound 42) 135 Compound of Example 5 (Compound 57) 128 Compound of Example 6 (Compound 62) 145 Compound of Example 7 (Compound 91) 143 Compound of Example 8 (Compound 92) 144 Compound of Example 9 (Compound 70) 134 Compound of Example 10 (Compound 94) 123
- the arylamine compound of the present invention had a glass transition temperature of 100 ° C. or more, and the thin film state was stable.
- a vapor deposited film having a film thickness of 100 nm was produced on an ITO substrate, and the work function was measured by an ionization potential measuring device (PYS-202 type manufactured by Sumitomo Heavy Industries, Ltd.).
- the compound of the present invention exhibited a suitable energy level and had a good hole transport ability, as compared with the work function 5.4 eV of common hole transport materials such as NPD and TPD. .
- Element Example 1 A hole injection layer 3, a hole transport layer 4, an electron blocking layer 5, a light emitting layer 6, an electron transport layer 7, an electron injection layer 8, and an ITO electrode previously formed as a transparent anode 2 on a glass substrate 1.
- the cathode (aluminum electrode) 9 was vapor-deposited in this order to prepare an organic EL device as shown in FIG.
- the ITO surface was washed by UV / ozone treatment. Thereafter, the ITO electrode-attached glass substrate was mounted in a vacuum evaporator, and the pressure was reduced to 0.001 Pa or less.
- the hole injection layer 3 was formed. Specifically, a compound HIM-1 of the following structural formula was vapor-deposited so as to cover the transparent anode 2 to form a layer having a thickness of 5 nm.
- the hole transport layer 4 was formed. Specifically, a compound HTM-1 of the following structural formula was vapor-deposited on the hole injection layer 3 to form a layer having a thickness of 60 nm.
- the electron blocking layer 5 was formed. Specifically, the compound (compound 2) of Example 1 was vapor-deposited on the hole transport layer 4 to form a layer having a thickness of 5 nm. (Compound 2)
- the electron transport layer 7 was formed.
- the electron injection layer 8 was formed. Specifically, lithium fluoride was vapor-deposited on the electron transport layer 7 to form a layer having a thickness of 1 nm.
- the glass substrate on which the organic film and aluminum were formed was moved into a glove box substituted with dry nitrogen, and a glass substrate for sealing was bonded using a UV curing resin to obtain an organic EL element.
- Element Example 2 An organic EL device was produced under the same conditions as that of Device Example 1 except that the compound (Compound 10) of Example 2 was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer 5 did. (Compound 10)
- Element Example 3 An organic EL device was produced under the same conditions as that of Device Example 1, except that the compound (Compound 41) of Example 3 was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer 5 did. (Compound 41)
- Element Example 4 An organic EL device was produced under the same conditions as that of Device Example 1 except that the compound (Compound 42) of Example 4 was used instead of the compound (Compound 2) of Example 1 as the material of electron blocking layer 5 did. (Compound 42)
- Example 5 An organic EL device was manufactured under the same conditions as Example 1 except that the compound (Compound 57) of Example 5 was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer did. (Compound 57)
- Element Example 6 An organic EL device was produced under the same conditions as that of Device Example 1 except that the compound (Compound 62) of Example 6 was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer 5 did. (Compound 62)
- Element Example 7 An organic EL device was produced under the same conditions, except that the compound of Example 7 (Compound 91) was used instead of the compound of Example 1 (Compound 2) as the material of the electron blocking layer 5 in Element Example 1. did. (Compound 91)
- Element Example 8 An organic EL device was produced under the same conditions as that of Device Example 1 except that the compound (Compound 92) of Example 8 was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer 5 did. (Compound 92)
- Element Example 9 An organic EL device was produced under the same conditions as that of Device Example 1, except that the compound (Compound 70) of Example 9 was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer 5 did. (Compound 70)
- Element Example 10 An organic EL device was produced under the same conditions, except that the compound of Example 10 (Compound 94) was used instead of the compound of Example 1 (Compound 2) as the material of the electron blocking layer 5 in Element Example 1. did. (Compound 94)
- Element Comparative Example 1 An organic EL device was produced under the same conditions as that in the device example 1, except that the compound HTM-A of the following structural formula was used instead of the compound (compound 2) of the example 1 as the material of the electron blocking layer 5 .
- Element Comparative Example 2 An organic EL device was produced under the same conditions as that of Device Example 1, except that the compound HTM-B of the following structural formula was used instead of the compound (Compound 2) of Example 1 as the material of the electron blocking layer 5 did.
- the element lifetimes of the organic EL elements produced in element examples 1 to 10 and element comparative examples 1 and 2 were measured. The results are shown in Table 1.
- the device life is equivalent to 95% of the emission luminance of 1900 cd / m 2 (when the initial luminance is 100%) when constant current driving is performed with the emission luminance (initial luminance) of 2000 cd / m 2 at the start of light emission: The time to decay to 95%) was measured.
- the driving voltage is 4.15 to 4.18 V in the element comparative examples 1 to 2 while it is 3.65 to 3.87 V in the element embodiments 1 to 10, and all can be driven at low voltage.
- Met. Regarding the luminous efficiency it was 4.42 to 5.76 cd / A in the element comparative example 1 to 2, but high in efficiency to 8.04 to 9.23 cd / A in the element example 1 to 10
- the power efficiency was 3.41 to 4.43 lm / W in the element comparative examples 1 to 2, while the efficiency was 6.78 to 7.51 lm / W in the element examples 1 to 10, which is high.
- the element life was 74 to 81 hours in the element comparative examples 1 and 2, but the element life was greatly extended to 183 to 250 hours in the element examples 1 to 10.
- the organic EL device using the arylamine compound of the present invention has a low driving voltage, high luminous efficiency, and a long lifetime as compared with the conventional organic EL device.
- the arylamine compound of the present invention is excellent as a compound for an organic EL device because it has a high hole transportability, an excellent electron blocking ability, and a stable thin film state.
- an organic EL element is manufactured using the compound, high light emission efficiency and power efficiency can be obtained, the practical driving voltage can be lowered, and durability can be improved. For example, it has become possible to expand to home appliances and lighting applications.
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Abstract
Description
Ar1~Ar4は、同一でも異なってもよく、芳香族炭化水素基、芳香
族複素環基または縮合多環芳香族基を表し、
nは1~3の整数を表し、
Lは、芳香族炭化水素の2価基、芳香族複素環の2価基、縮合多環芳
香族の2価基を表し、
R1~R3は、同一でも異なってもよく、水素原子、重水素原子、フッ
素原子、塩素原子、シアノ基、ニトロ基、炭素数1~6のアルキル基、
炭素数5~10のシクロアルキル基、炭素数2~6のアルケニル基、炭
素数1~6のアルキルオキシ基、炭素数5~10のシクロアルキルオキ
シ基、芳香族炭化水素基、芳香族複素環基、縮合多環芳香族基またはア
リールオキシ基を表す。
2)Ar3およびAr4は、同一でも異なってもよく、芳香族炭化水素基またはヘテロ原子を有さない縮合多環芳香族基であること、
3)Ar3およびAr4は、同一でも異なってもよく、芳香族炭化水素基またはヘテロ原子を有さない縮合多環芳香族基であり、該芳香族炭化水素基または該縮合多環芳香族基は置換基を有していないこと、
4)Ar3およびAr4は、同一でも異なってもよく、フェニル基、ビフェニリル基、ナフチル基、フェナントレニル基またはフルオレニル基であるこ
と、
5)R1およびR3は、同一でも異なってもよく、水素原子または重水素原子であること、
6)Lがフェニレン基であること、
7)Lが1,4-フェニレン基であること、
が好ましい。
Ar1、Ar2、Ar3およびAr4は、同一でも異なってもよく、芳香族炭化水素基、芳香族複素環基または縮合多環芳香族基を表す。Ar1~Ar4で表される芳香族炭化水素基、芳香族複素環基または縮合多環芳香族基としては、具体的に、フェニル基、ビフェニリル基、ターフェニリル基、ナフチル基、アントラセニル基、フェナントレニル基、フルオレニル基、インデニル基、ピレニル基、ペリレニル基、フルオランテニル基、トリフェニレニル基、ピリジル基、ピリミジニル基、トリアジニル基、フリル基、ピロリル基、チエニル基、キノリル基、イソキノリル基、ベンゾフラニル基、ベンゾチエニル基、インドリル基、カルバゾリル基、ベンゾオキサゾリル基、ベンゾチアゾリル基、キノキサリニル基、ベンゾイミダゾリル基、ピラゾリル基、ジベンゾフラニル基、ジベンゾチエニル基、ナフチリジニル基、フェナントロリニル基、アクリジニル基、カルボリニル基などをあげることができる。
ハロゲン原子、例えばフッ素原子、塩素原子、臭素原子、ヨウ素原子
等;
炭素数1~6のアルキル基、例えばメチル基、エチル基、n-プロピル
基、イソプロピル基、n-ブチル基、イソブチル基、tert-ブチル
基、n-ペンチル基、イソペンチル基、ネオペンチル基、n-ヘキシル基
等;
炭素数1~6のアルキルオキシ基、例えばメチルオキシ基、エチルオキ
シ基、プロピルオキシ基等;
アルケニル基、例えばビニル基、アリル基等;
アリールオキシ基、例えばフェニルオキシ基、トリルオキシ基等;
アリールアルキルオキシ基、例えばベンジルオキシ基、フェネチルオキ
シ基等;
芳香族炭化水素基または縮合多環芳香族基、例えばフェニル基、ビフェ
ニリル基、ターフェニリル基、ナフチル基、アントラセニル基、フェナン
トレニル基、フルオレニル基、インデニル基、ピレニル基、ペリレニル
基、フルオランテニル基、トリフェニレニル基等;
芳香族複素環基、例えばピリジル基、ピリミジニル基、トリアジニル
基、チエニル基、フリル基、ピロリル基、キノリル基、イソキノリル基、
ベンゾフラニル基、ベンゾチエニル基、インドリル基、カルバゾリル基、
ベンゾオキサゾリル基、ベンゾチアゾリル基、キノキサリニル基、ベンゾ
イミダゾリル基、ピラゾリル基、ジベンゾフラニル基、ジベンゾチエニル
基、カルボリニル基等;
アリールビニル基、例えばスチリル基、ナフチルビニル基等;
アシル基、例えばアセチル基、ベンゾイル基等;
尚、炭素数1~6のアルキル基、アルケニル基、炭素数1~6のアルキルオキシ基は、直鎖状でも分枝状でもよい。これらの置換基は無置換でもよいが、さらに前記例示した置換基で置換されていても良い。また、これらの置換基同士は、独立して存在して環を形成していなくてもよいが、単結合、置換もしくは無置換のメチレン基、酸素原子または硫黄原子を介して互いに結合して環を形成していてもよい。
nは、基Lの数を表し、1~3の整数である。nが2または3の場合、複数存在するLは同一でも異なっていてもよい。
R1、R2およびR3は、同一でも異なってもよく、水素原子、重水素原子、フッ素原子、塩素原子、シアノ基、ニトロ基、炭素数1~6のアルキル基、炭素数5~10のシクロアルキル基、炭素数2~6のアルケニル基、炭素数1~6のアルキルオキシ基、炭素数5~10のシクロアルキルオキシ基、芳香族炭化水素基、芳香族複素環基、縮合多環芳香族基またはアリールオキシ基を表す。炭素数1~6のアルキル基、炭素数2~6のアルケニル基および炭素数1~6のアルキルオキシ基は、直鎖状でも分枝状でもよい。
ハロゲン原子、例えばフッ素原子、塩素原子、臭素原子、ヨウ素原子
等;
炭素数1~6のアルキルオキシ基、例えばメチルオキシ基、エチルオキ
シ基、プロピルオキシ基等;
アルケニル基、例えばビニル基、アリル基等;
アリールオキシ基、例えばフェニルオキシ基、トリルオキシ基等;
アリールアルキルオキシ基、例えばベンジルオキシ基、フェネチルオキ
シ基等;
芳香族炭化水素基または縮合多環芳香族基、例えばフェニル基、ビフェ
ニリル基、ターフェニリル基、ナフチル基、アントラセニル基、フェナン
トレニル基、フルオレニル基、インデニル基、ピレニル基、ペリレニル
基、フルオランテニル基、トリフェニレニル基等;
芳香族複素環基、例えばピリジル基、ピリミジニル基、トリアジニル
基、チエニル基、フリル基、ピロリル基、キノリル基、イソキノリル基、
ベンゾフラニル基、ベンゾチエニル基、インドリル基、カルバゾリル基、
ベンゾオキサゾリル基、ベンゾチアゾリル基、キノキサリニル基、ベンゾ
イミダゾリル基、ピラゾリル基、ジベンゾフラニル基、ジベンゾチエニル
基、カルボリニル基等;
尚、炭素数1~6のアルキルオキシ基、アルケニル基は、直鎖状でも分枝状でもよい。これらの置換基は、無置換でもよいが、さらに、前記例示した置換基が置換していても良い。また、これらの置換基同士は、独立して存在して環を形成していなくてもよいが、単結合、置換もしくは無置換のメチレン基、酸素原子または硫黄原子を介して互いに結合して環を形成していてもよい。
Ar1およびAr2は、同一でも異なってもよく、芳香族炭化水素基、またはヘテロ原子(例えば窒素原子、酸素原子、硫黄原子など)を有さない縮合多環芳香族基であることが好ましく、フェニル基、ナフチル基、フェナントレニル基またはフルオレニル基であることがより好ましく、置換基を有するフェニル基または置換基を有するフルオレニル基であることが特に好ましい。ここで、フェニル基の置換基としては、フェニル基、ビフェニリル基、ターフェニリル基、ナフチル基、フェナントレニル基またはフルオレニル基が好ましい。フルオレニル基の置換基としては、メチル基またはフェニル基が好ましい。
本発明のアリールアミン化合物は、新規な化合物であり、例えば以下のように合成できる。
まず、任意の1級または2級芳香族アミン誘導体と芳香族ハロゲン化物とを用いて、ウルマンカップリングやsuzukiカップリングなど既知のクロスカップリング反応を行い、2級または3級芳香族アミン誘導体を合成する。
得られた2級または3級芳香族アミン誘導体を既知の方法によりハロゲン化して、ハロゲノ2級アミン誘導体またはハロゲノ3級アミン誘導体(これらを総称してハロゲン化物と呼ぶ。)を得る。
得られたハロゲン化物とピナコールボラン、ビス(ピナコラート)ジボロン、ホウ酸トリメチル等との反応を行うことによって、ボロン酸またはボロン酸エステル誘導体を合成できる。
一方、任意の芳香族炭化水素化合物(例えば、1,3,5-トリフェニルベンゼン誘導体)を既知の方法でハロゲン化して、ハロゲノ芳香族炭化水素化合物を得る。
得られたハロゲノ芳香族炭化水素化合物と上記ボロン酸またはボロン酸エステル誘導体とを用いてSuzukiカップリングなど、既知のクロスカップリング反応を行うことによって目的のアリールアミン化合物を合成することができる。
本発明のアリールアミン化合物は、有機EL素子中の有機層の材料として好適である。本発明のアリールアミン化合物を使用して形成される有機EL素子(以下、本発明の有機EL素子と呼ぶことがある。)は、例えば、ガラス基板や透明プラスチック基板(例えばポリエチレンテレフタレート基板)などの基板上に順次、陽極、正孔注入層、正孔輸送層、発光層、電子輸送層および陰極が形成された構成を有する。
本発明の有機EL素子において、陽極2には、ITOや金のような仕事関数の大きな電極材料が用いられる。
正孔注入層3には、本発明のアリールアミン化合物のほか、公知の化合物、例えば銅フタロシアニンに代表されるポルフィリン化合物;スターバースト型のトリフェニルアミン誘導体;種々のトリフェニルアミン4量体などの材料;ヘキサシアノアザトリフェニレンのようなアクセプター性の複素環化合物;や塗布型の高分子材料;を用いることができる。
正孔輸送層4には、本発明のアリールアミン化合物のほか、正孔輸送性を有する公知の化合物を使用することができる。正孔輸送性を有する公知の化合物としては、以下を例示することができる。
ベンジジン誘導体、例えば
N,N’-ジフェニル-N,N’-ジ(m-トリル)ベンジジン
(TPD)、
N,N’-ジフェニル-N,N’-ジ(α-ナフチル)ベンジジン
(NPD)、
N,N,N’,N’-テトラビフェニリルベンジジン等;
1,1-ビス[4-(ジ-4-トリルアミノ)フェニル]シクロヘキサン
(TAPC);
種々のトリフェニルアミン3量体または4量体;
これらの材料は、単独で成膜に供してもよいが、複数の材料を混合して成膜に供してもよい。また、正孔輸送層4は、単層構造でも複数層の構造でもよい。
電子阻止層5には、本発明のアリールアミン化合物のほか、公知の電子阻止作用を有する化合物を用いることができる。公知の電子阻止作用を有する化合物としては、以下を例示することができる。
カルバゾール誘導体、例えば
4,4’,4’’-トリ(N-カルバゾリル)トリフェニルアミン
(TCTA)、
9,9-ビス[4-(カルバゾール-9-イル)フェニル]フルオレ
ン、
1,3-ビス(カルバゾール-9-イル)ベンゼン(mCP)、
2,2-ビス(4-カルバゾール-9-イルフェニル)アダマンタン
(Ad-Cz)など;
トリフェニルシリル基とトリアリールアミン構造を有する化合物、
例えば
9-[4-(カルバゾール-9-イル)フェニル]-9-[4-
(トリフェニルシリル)フェニル]-9H-フルオレンなど;
これらの材料は、単独で成膜に供してもよいが、複数の材料を混合して成膜に供してもよい。また、電子阻止層5は、単層構造でも複数層の構造でもよい。
発光層6には、公知の発光材料を使用することができる。公知の発光材料としては、Alq3をはじめとするキノリノール誘導体の金属錯体の他、各種の金属錯体;アントラセン誘導体;ビススチリルベンゼン誘導体;ピレン誘導体;オキサゾール誘導体;ポリパラフェニレンビニレン誘導体;などを用いることができる。
カルバゾール誘導体、例えば4,4’-ジ(N-カルバゾリル)ビフェ
ニル(CBP)、TCTA、mCPなど;
本発明のアリールアミン化合物;
あるいは、以下の電子輸送性のホスト材料を使用することができる。
p-ビス(トリフェニルシリル)ベンゼン(UGH2);
2,2’,2’’-(1,3,5-フェニレン)-トリス(1-フェニル-
1H-ベンズイミダゾール)(TPBI);
このようなホスト材料を用いると、高性能の有機EL素子を作製することができる。
発光層6と電子輸送層7との間には、正孔阻止層(図示せず)を設けることができる。正孔阻止層には、公知の正孔阻止作用を有する化合物を用いることができる。公知の正孔阻止作用を有する化合物としては、
フェナントロリン誘導体、例えばバソクプロイン(BCP);
キノリノール誘導体の金属錯体、例えば
アルミニウム(III)ビス(2-メチル-8-キノリナート)-4-
フェニルフェノレート(BAlq)など;
各種の希土類錯体;
トリアゾール誘導体;
トリアジン誘導体;
オキサジアゾール誘導体;
電子輸送層7には、以下の公知の化合物を使用することができる。
Alq3、BAlqをはじめとするキノリノール誘導体の金属錯体;
各種金属錯体;
トリアゾール誘導体;
トリアジン誘導体;
オキサジアゾール誘導体;
ピリジン誘導体;
ピリミジン誘導体;
ベンズイミダゾール誘導体;
チアジアゾール誘導体;
アントラセン誘導体;
カルボジイミド誘導体;
キノキサリン誘導体;
ピリドインドール誘導体;
フェナントロリン誘導体;
シロール誘導体;
これらの材料は、単独で成膜に供してもよいが、複数の材料を混合して成膜に供してもよい。また、電子輸送層7は、単層構造でも複数層の構造でもよい。
電子注入層8には、フッ化リチウム、フッ化セシウムなどのアルカリ金属塩;フッ化マグネシウムなどのアルカリ土類金属塩;酸化アルミニウムなどの金属酸化物;などを用いることができるが、電子輸送層と陰極の好ましい選択においては、これを省略することができる。
陰極9では、アルミニウムのような仕事関数の低い電極材料や、マグネシウム銀合金、マグネシウムインジウム合金、アルミニウムマグネシウム合金のような、より仕事関数の低い合金が電極材料として用いられる。
N,N-ビス(ビフェニル-4-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
(手順1)
窒素置換した反応容器に、
1,3,5-トリフェニルベンゼン 50.7gおよび
クロロホルム 500ml
を加えた後、
臭素 29.1g
を加え、室温で16時間攪拌し、反応液を調整した。かかる反応液に、飽和亜硫酸ナトリウム水溶液を加え攪拌した後、分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧濃縮することで粗製物を得た。粗製物にヘキサンを加えて分散洗浄を行った。その結果、2-ブロモ-1,3,5-トリフェニルベンゼンの白色粉体55.0g(収率86%)を得た。
窒素置換した反応容器に、
得られた2-ブロモ-1,3,5-トリフェニルベンゼン
5.0g、
4-{N,N-ビス(ビフェニル-4-イル)アミノ}フェニル
ボロン酸 6.9g、
リン酸三カリウム 8.3g、
1,4-ジオキサン 90mlおよび
水 10ml
を加え、30分間窒素ガスを通気し、混合液を得た。かかる混合液に、
酢酸パラジウム(II) 0.087gおよび
トリシクロヘキシルホスフィン 0.25g
を加えて加熱し、85℃で6時間撹拌し、反応液を得た。かかる反応液に水50mlを加え、析出する固体をろ過によって採取し、粗製物を得た。得られた粗製物にトルエンを加えて加熱溶解し、シリカゲルを加えて撹拌した後、熱時ろ過を行った。ろ液を室温まで冷却し、析出する固体をろ過によって採取した。トルエンを用いた再結晶を行った。その結果、化合物2の白色粉体7.7g(収率84%)を得た。
δ(ppm)=7.92(2H)
7.87(2H)
7.75(4H)
7.67(4H)
7.60(2H)
7.54(4H)
7.49(1H)
7.40(12H)
7.21(4H)
6.96(4H)
N-(ビフェニル-4-イル)-N-(1,1’:4’,1’’-ターフェニル-4-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
N-(4-ブロモフェニル)-4-ビフェニルアミン
38.0g、
4-ビフェニルボロン酸 25.5g、
炭酸カリウム 32.4g、
トルエン 3000ml、
エタノール 76mlおよび
水 113ml
を加え、30分間窒素ガスを通気し、混合液を得た。混合液に、
テトラキストリフェニルホスフィンパラジウム 2.7g
を加えて加熱し、73℃で5時間撹拌し、反応液を得た。反応液に水100mlを加え、析出する固体をろ過によって採取した。得られた固体にo-ジクロロベンゼンを加えて加熱溶解し、更に、シリカゲルを加えて撹拌した後、熱時ろ過を行った。ろ液を減圧下で濃縮し、析出する固体をろ過によって採取した。その結果、N-(ビフェニル-4-イル)-N-(1,1’:4’,1’’-ターフェニル-4-イル)アミンの黄色粉体20.1g(収率43%)を得た。
得られたN-(ビフェニル-4-イル)-N-(1,1’:4’,
1’’-ターフェニル-4-イル)アミン 20.0g、
ヨードベンゼン 15.4g、
銅粉 0.3g、
炭酸カリウム 13.9g、
3,5-ジ-tert-ブチルサリチル酸 1.2g、
重亜硫酸ナトリウム 1.5gおよび
ドデシルベンゼン 20ml
を加えて加熱し、180℃で16時間撹拌し、反応液を得た。反応液を100℃まで冷却した後、トルエンを加え、析出する固体をろ過によって採取した。採取した固体を水洗し、その後メタノールを用いて洗浄した。洗浄した固体をo-ジクロロベンゼンに溶解させ、シリカゲルを用いた吸着精製を行った。その結果、N-(ビフェニル-4-イル)-N-フェニル-N-(1,1’:4’,1’’-ターフェニル-4-イル)アミンの白色粉体17.1g(収率72%)を得た。
得られたN-(ビフェニル-4-イル)-N-フェニル-N-(1,
1’:4’,1’’-ターフェニル-4-イル)アミン
17.0gおよび
ジメチルホルムアミド 340ml
を加えた後、
N-ブロモスクシンイミド 7.0g
を加え、室温で13時間撹拌して混合液を得た。混合液にメタノールを加え、析出する固体をろ過によって採取した。その結果、N-(ビフェニル-4-イル)-N-(4-ブロモフェニル)-N-(1,1’:4’,1’’-ターフェニル-4-イル)アミンの白色粉体17.2g(収率87%)を得た。
得られたN-(ビフェニル-4-イル)-N-(4-ブロモフェニ
ル)-N-(1,1’:4’,1’’-ターフェニル-4-イル)
アミン 5.0g、
ビス(ピナコレート)ジボロン 2.8g、
酢酸カリウム 2.2gおよび
1,4-ジオキサン 100ml
を加え、30分間窒素ガスを通気して混合液を得た。混合液に、{1,1’-ビス(ジフェニルホスフィノ)フェロセン}パラジウム(II)ジクロリドのジクロロメタン付加物0.2gを加えて加熱し、97℃で5時間撹拌し、反応液を得た。得られた反応液を室温まで冷却し、水とトルエンを加えての分液操作を行って有機層を採取した。有機層を無水硫酸マグネシウムで脱水した後、減圧下で濃縮して粗製物を得た。粗製物をトルエンに溶解し、シリカゲルを用いた吸着精製を行った。ろ過後、ろ液を減圧下で濃縮し、析出する固体をろ過によって採取した。その結果、N-(ビフェニル-4-イル)-N-{4-(4,4,5,5-テトラメチル-[1,3,2]ジオキサボラン-2-イル)フェニル}-N-(1,1’:4’,1’’-ターフェニル-4-イル)アミンの灰色粉体4.4g(収率81%)を得た。
4-{N,N-ビス(ビフェニル-4-イル)アミノ}フェニルボロ
ン酸
に代えて
N-(ビフェニル-4-イル)-N-{4-(4,4,5,5-テト
ラメチル-[1,3,2]ジオキサボラン-2-イル)フェニル}-N
-(1,1’:4’,1’’-ターフェニル-4-イル)アミン
を用い、同様の条件で反応を行った。その結果、化合物10の白色粉体3.8g(収率75%)を得た。
δ(ppm)=7.92(2H)
7.87(2H)
7.85(4H)
7.83(2H)
7.74(4H)
7.68(2H)
7.57(6H)
7.49(2H)
7.40(11H)
7.22(4H)
6.97(4H)
N-(ビフェニル-4-イル)-N-(9,9-ジメチル-9H-フルオレン-2-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
窒素置換した反応容器に、
N-(ビフェニル-4-イル)-N-(4-ブロモフェニル)-
N-(9,9-ジメチル-9H-フルオレン-2-イル)アミン
71.9gおよび
テトラヒドロフラン 360ml
を加え、-78℃まで冷却して混合液を得た。混合液に、n-ブチルリチウムのヘキサン溶液(1.6M)100mlをゆっくり滴下し、同温で1時間撹拌した。続いて、ホウ酸トリメチル19mlをゆっくり滴下し、同温で1時間撹拌した。続いて、室温まで昇温した後、さらに1時間攪拌した。続いて、1N塩酸水溶液を加えて、1時間撹拌した。分液操作を行うことによって有機層を採取した。次いで、有機層を無水硫酸マグネシウムで脱水した後、減圧下で濃縮し、粗製物を得た。得られた粗製物に酢酸エチル/n-ヘキサンの混合溶液を用いた晶析精製を行った。その結果、4-{N-(ビフェニル-4-イル)-N-(9,9-ジメチル-9H-フルオレン-2-イル)アミノ}フェニルボロン酸の灰色粉体44.6g(収率67%)を得た。
4-{N,N-ビス(ビフェニル-4-イル)アミノ}フェニルボロ
ン酸
に代えて
4-{N-(ビフェニル-4-イル)-N-(9,9-ジメチル-9
H-フルオレン-2-イル)アミノ}フェニルボロン酸
を用い、同様の条件で反応を行った。その結果、化合物41の白色粉体4.9g(収率85%)を得た。
δ(ppm)=7.92(2H)
7.87(2H)
7.81(1H)
7.76(3H)
7.65(2H)
7.60(2H)
7.57-7.52(3H)
7.50(1H)
7.40(13H)
7.29(1H)
7.19(2H)
7.13(1H)
6.95(4H)
1.55(6H)
N,N-ビス(9,9-ジメチル-9H-フルオレン-2-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
実施例1において、
4-{N,N-ビス(ビフェニル-4-イル)アミノ}フェニルボロ
ン酸
に代えて
N,N-ビス(9,9-ジメチル-9H-フルオレン-2-イル)-
N-{4-(4,4,5,5-テトラメチル-[1,3,2]ジオキサ
ボラン-2-イル)フェニル}アミン
を用い、同様の条件で反応を行った。その結果、化合物42の白色粉体11.0g(収率91%)を得た。
δ(ppm)=7.92(2H)
7.87(2H)
7.80(2H)
7.74(2H)
7.60(2H)
7.56(2H)
7.50(1H)
7.40(14H)
7.29(2H)
7.10(2H)
6.97(2H)
6.93(2H)
1.55(12H)
N-(ビフェニル-4-イル)-N-{p-(9,9-ジメチル-9H-フルオレン-2-イル)フェニル}-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
窒素置換した反応容器に、
N-(4-ブロモフェニル)-N-(4-ビフェニル)アミン
20.0g、
2-(9,9-ジメチル-9H-フルオレン-2-イル)-4,
4,5,5-テトラメチル-1,3,2-ジオキサボラン
21.7g、
リン酸三カリウム 26.2g、
1,4-ジオキサン 200mlおよび
水 70ml
を加え、40分間窒素ガスを通気して混合液を得た。混合液に、テトラキストリフェニルホスフィンパラジウム1.4gを加えて加熱し、85℃で4時間撹拌して反応液を得た。反応液を室温まで冷却した後、トルエンを加えての分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで乾燥した後、減圧下で濃縮することによって粗製物を得た。得られた粗製物にヘキサンを加えて晶析精製を行い、析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-[p-(9,9-ジメチル-9H-フルオレン-2-イル)フェニル]アミンの白色固体20.7g(収率77%)を得た。
得られたN-(ビフェニル-4-イル)-N-[p-(9,9-
ジメチル-9H-フルオレン-2-イル)フェニル]アミン
20.0g、
1-ブロモ-4-ヨードベンゼン 15.5g、
ナトリウム-tert-ブトキシド 6.6gおよび
キシレン 400ml
を加え、1時間窒素ガスを通気して混合液を得た。混合液に
酢酸パラジウム 0.2gおよび
キサントホス 1.1g
を加えて加熱し、105℃で2時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水を加えてろ過し、有機層を採取した。有機層を硫酸マグネシウムで乾燥した後、減圧下で濃縮し、濃縮液を得た。濃縮液に対し、メタノールを用いた晶析精製を行い、析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-(4-ブロモフェニル)-N-[p-(9,9-ジメチル-9H-フルオレン-2-イル)フェニル]アミンの白色固体19.0g(収率70%)を得た。
得られたN-(ビフェニル-4-イル)-N-(4-ブロモフェニ
ル)-N-[p-(9,9-ジメチル-9H-フルオレン-2-イル)
フェニル]アミン 18.0gおよび
テトラヒドロフラン 20ml
を加え、-68℃まで冷却し、混合液を得た。混合液に、n-ブチルリチウムのヘキサン溶液(1.6M)22mlを45分かけて滴下し、その後45分間撹拌した。次いで、ホウ酸トリメチル4mlを15分かけて滴下し、その後-68℃のまま1時間撹拌した。さらに室温で2時間撹拌し、1N塩酸60mlを加えて2時間撹拌した。有機層を硫酸マグネシウムで乾燥した後、減圧下で濃縮した。濃縮液に対し、ヘキサンを用いた晶析精製を行い、析出した固体をろ過により採取した。その結果、4-[N-(ビフェニル-4-イル)-N-{p-(9,9-ジメチル-9H-フルオレン-2-イル)フェニル}アミノ]フェニルボロン酸の白色固体12.5g(収率74%)を得た。
4-{N,N-ビス(ビフェニル-4-イル)アミノ}フェニルボロ
ン酸
に代えて
4-[N-(ビフェニル-4-イル)-N-{p-(9,9-ジメチ
ル-9H-フルオレン-2-イル)フェニル}アミノ]フェニルボロン
酸
を用い、同様の条件で反応を行った。その結果、化合物57の白色固体5.5g(収率43%)を得た。
δ(ppm)=7.97-7.92(4H)、
7.90(3H)
7.77(5H)
7.70(2H)
7.63(3H)
7.57(2H)
7.52(1H)
7.44(13H)
7.25(4H)
6.99(4H)
1.71(6H)
N-(ビフェニル-4-イル)-N-(9,9-ジフェニル-9H-フルオレン-2-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
窒素置換した反応容器に、
2-アミノ-9,9-ビフェニル-9H-フルオレン
10.0g、
4-ブロモビフェニル 7.3g、
ナトリウム-tert-ブトキシド 4.3gおよび
トルエン 100ml
を加え、40分間窒素ガスを通気し、混合液を得た。混合液に、
酢酸パラジウム 0.1gおよび
トリ-tert-ブチルホスフィンのトルエン溶液(50wt%)
0.7g
を加えて加熱し、80℃で5時間撹拌し、反応液を得た。反応液を室温まで冷却した後、減圧下で濃縮した。濃縮液にトルエンを加えて加熱溶解し、シリカゲルを加えて撹拌し、熱時ろ過を行った。ろ液を減圧下で濃縮し、析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-(9,9-ジフェニル-9H-フルオレン-2-イル)アミンの白色固体12.0g(収率82%)を得た。
得られたN-(ビフェニル-4-イル)-N-(9,9-ジフェニル
-9H-フルオレン-2-イル)アミン 11.9g、
1-ブロモ-4-ヨードベンゼン 8.3g、
ナトリウム-tert-ブトキシド 3.5gおよび
キシレン 240ml
を加え、1時間窒素ガスを通気し、混合液を得た。混合液に
酢酸パラジウム 0.1gおよび
キサントホス 0.6g
を加えて加熱し、120℃で4時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水を加えてろ過し、有機層を採取した。有機層を硫酸マグネシウムで乾燥した後、減圧下で濃縮した。濃縮液に対し、シリカゲルを用いた吸着精製を行った。その結果、N-(ビフェニル-4-イル)-N-(4-ブロモフェニル)-N-(9,9-ジフェニル-9H-フルオレン-2-イル)アミンの白色固体13.2g(収率84%)を得た。
得られたN-(ビフェニル-4-イル)-N-(4-ブロモフェニ
ル)-N-(9,9-ジフェニル-9H-フルオレン-2-イル)ア
ミン 12.9gおよび
テトラヒドロフラン 100ml
を加え、-68℃まで冷却し、混合液を得た。混合液にn-ブチルリチウムのヘキサン溶液(1.6M)15mlを20分かけて滴下後、40分間撹拌した。次いで、ホウ酸トリメチル3mlを15分かけて滴下後、-68℃のまま1時間撹拌した。さらに室温で2時間撹拌し、1N塩酸を60ml加えて2時間撹拌した。有機層を硫酸マグネシウムで乾燥した後、減圧下で濃縮した。濃縮液に対し、ヘキサンを用いた晶析精製を行い、析出した固体をろ過により採取した。その結果、4-{N-(ビフェニル-4-イル)-N-(9,9-ジフェニル-9H-フルオレン-2-イル)アミノ}フェニルボロン酸の緑白色固体7.3g(収率60%)を得た。
4-{N,N-ビス(ビフェニル-4-イル)アミノ}フェニルボロ
ン酸
に代えて
4-{N-(ビフェニル-4-イル)-N-(9,9-ジフェニル-
9H-フルオレン-2-イル)アミノ}フェニルボロン酸
を用い、同様の条件で反応を行った。その結果、化合物62の黄白色固体7.5g(収率81%)を得た。
δ(ppm)=7.93(2H)
7.90(1H)
7.88(2H)
7.83(1H)
7.75(2H)
7.64-7.61(4H)
7.55(3H)
7.53-7.48(2H)
7.43(1H)
7.36(11H)
7.31(11H)
7.17(2H)
7.14(1H)
6.94(4H)
N-{p-(フェナントレニル-9-イル)フェニル}-N-(1,1’:4’,1’’-ターフェニル-4-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
窒素置換した反応容器に、
4-ブロモジフェニルアミン 100.0g、
ビス(ピナコラト)ジボロン 123.0g、
酢酸カリウム 98.9gおよび
1,4-ジオキサン 1000ml
を加え、30分間窒素ガスを通気し、混合液を得た。混合液に、{1,1’-ビス(ジフェニルホスフィノ)フェロセン}パラジウム6.6gを加えて加熱し、100℃で6時間撹拌し、反応液を得た。反応液を室温まで冷却した後、トルエン、水を加えて分液操作を行い、有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮した。濃縮液にヘキサンを加えて冷凍庫で冷却し、析出した固体をろ過により採取した。その結果、N-フェニル{p-(4,4,5,5-テトラメチル-1,3,2-ジオキサボラン-2-イル)フェニル}アミンの白色固体56.1g(収率47%)を得た。
得られたN-フェニル{p-(4,4,5,5-テトラメチル-1,
3,2-ジオキサボラン-2-イル)フェニル}アミン
54.8g、
2-ブロモ-1,3,5-トリフェニルベンゼン
65.0g、
リン酸三カリウム 71.7g、
1,4-ジオキサン 650mlおよび
水 180ml
を加え、45分間窒素ガスを通気し、混合液を得た。混合液にテトラキストリフェニルホスフィンパラジウム3.9gを加えて加熱し、90℃で11時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水を加えて分液操作を行い、有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮して粗製物を得た。粗製物にメタノールを加えて分散洗浄を行った。その結果、N-フェニル-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの白色固体71.6g(収率90%)を得た。
得られたN-フェニル-N-[4-{(2,4,6-トリフェニル)
フェニル}フェニル]アミン 30.0g、
4-ブロモ-1,1’:4’,1’ ’-ターフェニル
20.6g、
ナトリウム-tert-ブトキシド 9.1gおよび
トルエン 300ml
を加え、35分間窒素ガスを通気し、混合液を得た。混合液に
酢酸パラジウム 0.3gおよび
トリ-tert-ブチルホスフィンのトルエン溶液(50wt%)
1.5g
を加えて加熱し、80℃で3時間撹拌し、反応液を得た。反応液を室温まで冷却した後、減圧下で濃縮した。濃縮液に対し、メタノールを用いた晶析精製を行い、析出した固体をろ過により採取した。その結果、N-フェニル-N-(1,1’:4’,1’’-ターフェニル-4-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの黄緑色固体37.9g(収率85%)を得た。
得られたN-フェニル-N-(1,1’:4’,1’’-ターフェニ
ル-4-イル)-N-[4-{(2,4,6-トリフェニル)フェニ
ル}フェニル]アミン 36.9g、
N-ブロモスクシンイミド 9.1gおよび
クロロホルム 370ml
を加え、室温で3時間撹拌し、混合液を得た。混合液を減圧下で濃縮し、メタノールを加え、析出した固体をろ過により採取した。その結果、N-(4-ブロモフェニル)-N-(1,1’:4’,1’’-ターフェニル-4-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの黄白色固体31.4g(収率76%)を得た。
得られたN-(4-ブロモフェニル)-N-(1,1’:4’,
1’’-ターフェニル-4-イル)-N-[4-{(2,4,6-
トリフェニル)フェニル}フェニル]アミン 6.2g、
9-フェナントレンボロン酸 2.1g、
炭酸カリウム 2.2g、
1,4-ジオキサン 60mlおよび
水 20ml
を加え、35分間窒素ガスを通気し、混合液を得た。混合液にテトラキストリフェニルホスフィンパラジウム0.3gを加えて加熱し、85℃で14時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水50mlを加えろ過した。析出した固体をろ過により採取した。得られた粗製物にトルエンを加えて加熱溶解させた。溶液にシリカゲルを加えて撹拌した後、熱時ろ過を行った。ろ液を減圧下で濃縮した。濃縮液に対し、シリカゲルを用いた吸着精製を行った。その結果、化合物91の白色固体2.7g(収率39%)を得た。
δ(ppm)=9.04(1H)
8.97(1H)
8.20(1H)
8.10(1H)
7.95(2H)
7.90(7H)
7.85(3H)
7.84-7.82(1H)
7.79(3H)
7.74(1H)
7.61(6H)
7.50(2H)
7.44(8H)
7.39(2H)
7.33(4H)
7.08(2H)
7.03(2H)
N-(ビフェニル-4-イル)-N-(9,9-ジメチル-9H-フルオレン-2-イル)-N-[4’-{(2,4,6-トリフェニル)-1,1’-ビフェニル-4-イル}フェニル]アミンの合成;
窒素置換した反応容器に、
実施例3で得られた4-{N-(ビフェニル-4-イル)-N-
(9,9-ジメチル-9H-フルオレン-2-イル)アミノ}フェ
ニルボロン酸 20.0g、
1-ブロモ-4-ヨードベンゼン 12.9g、
炭酸カリウム 11.5g、
トルエン 160ml、
エタノール 40mlおよび
水 40ml
を加え、45分間窒素ガスを通気し、混合液を得た。混合液にテトラキストリフェニルホスフィンパラジウム1.0gを加えて加熱し、74℃で8時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水を加えて分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮した。濃縮液にトルエンを溶解させ、メタノール中に滴下した。析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-(4-ブロモ-4-ビフェニル)-N-(9,9-ジメチル-9H-フルオレン-2-イル)アミンの黄緑色固体19.8g(収率80%)を得た。
得られたN-(ビフェニル-4-イル)-N-(4-ブロモ-4-ビ
フェニル)-N-(9,9-ジメチル-9H-フルオレン-2-イル)
アミン 10.0g、
ビス(ピナコラト)ジボロン 5.1g、
酢酸カリウム 3.3gおよび
1,4-ジオキサン 100ml
を加え、30分間窒素ガスを通気し、混合液を得た。混合液に{1,1-ビス(ジフェニルホスフィノ)フェロセン}パラジウム(II)ジクロリド0.3gを加えて加熱し、80℃で19時間撹拌し、反応液を得た。反応液を室温まで冷却した後、トルエンおよび水を加えて分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮して粗製物を得た。粗製物にメタノールを加えて晶析精製を行った。析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-(9,9-ジメチル-9H-フルオレン-2-イル)-N-{p-(4,4,5,5-テトラメチル-1,3,2-ジオキサボラン-2-イル)ビフェニル}アミンの白色固体7.3g(収率68%)を得た。
得られたN-(ビフェニル-4-イル)-N-(9,9-ジメチル-
9H-フルオレン-2-イル)-N-{p-(4,4,5,5-テトラ
メチル-1,3,2-ジオキサボラン-2-イル)ビフェニル}アミン
7.2g、
2-ブロモ-1,3,5-トリフェニルベンゼン 3.6g、
炭酸カリウム 5.2g、
1,4-ジオキサン 80mlおよび
水 20ml
を加え、45分間窒素ガスを通気し、混合液を得た。混合液にテトラキストリフェニルホスフィンパラジウム0.3gを加えて加熱し、85℃で9時間撹拌し、反応液を得た。反応液を室温まで冷却した後、トルエンおよび水を加えて分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮して粗製物を得た。粗製物にトルエンおよびヘキサンを加えてシリカゲルを用いた吸着精製を行った。その結果、化合物92の黄白色固体6.7g(収率88%)を得た。
δ(ppm)=7.94(2H)
7.89(2H)
7.84(2H)
7.79(2H)
7.73(2H)
7.69(2H)
7.62(2H)
7.59-7.55(3H)
7.53-7.49(4H)
7.46-7.43(2H)
7.40(1H)
7.33(14H)
7.24(1H)
7.10(2H)
1.59(6H)
N-(ビフェニル-4-イル)-N-(9-フェニル-9H-カルバゾール-3-イル)-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
(手順1)
窒素置換した反応容器に、
N-(4-ブロモビフェニル)-4-ビフェニルアミン
50.0g、
ビス(ピナコラト)ジボロン 47.0g、
酢酸カリウム 37.8gおよび
1,4-ジオキサン 500ml
を加え、50分間窒素ガスを通気し、混合液を得た。混合液に{1,1-ビス(ジフェニルホスフィノ)フェロセン}パラジウム(II)ジクロリド2.5gを加えて加熱し、180℃で5時間撹拌し、反応液を得た。反応液を90℃まで冷却した後、トルエンおよび飽和食塩水を加えて分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮した。濃縮液にメタノールを加えて晶析精製を行い、析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-{4-(4,4,5,5-テトラメチル-1,3,2-ジオキサボラン-2-イル)フェニル}アミンの黄色固体38.9g(収率68%)を得た。
窒素置換した反応容器に
得られたN-(ビフェニル-4-イル)-N-{4-(4,4,5,
5-テトラメチル-1,3,2-ジオキサボラン-2-イル)フェニ
ル}アミン 21.2g、
2-ブロモ-1,3,5-トリフェニルベンゼン
20.0g、
リン酸三カリウム 22.1g、
1,4-ジオキサン 200mlおよび
水 60ml
を加え、35分間窒素ガスを通気し、混合液を得た。混合液にテトラキストリフェニルホスフィンパラジウム0.6gを加えて加熱し、86℃で8時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水を加えた。析出した固体をろ過によって採取した。得られた固体にトルエンを加えて加熱溶解した後、シリカゲルを加えて撹拌し、熱時ろ過を行った。ろ液を減圧下で濃縮し、メタノールを加えて晶析精製を行った。析出した固体をろ過により採取した。その結果、N-(ビフェニル-4-イル)-N-{4-(2,4,6-トリフェニルフェニル)フェニル}アミンの白色固体28.3g(収率99%)を得た。
窒素置換した反応容器に
得られたN-(ビフェニル-4-イル)-N-{4-(2,4,6-
トリフェニルフェニル)フェニル}アミン 6.0g、
3-ブロモ-9-フェニル-9H-カルバゾール 3.9g、
ナトリウム-tert-ブトキシド 1.6gおよび
トルエン 60ml
を加え、45分間窒素ガスを通気し、混合液を得た。混合液に、
酢酸パラジウム 0.1gおよび
トリ-tert-ブチルホスフィン 0.2g
を加えて加熱し、104℃で3時間撹拌し、反応液を得た。反応液を室温まで冷却した後、メタノールを加えた。析出した固体をろ過によって採取した。得られた固体にトルエンを加えて加熱溶解した後、シリカゲルを加えて撹拌し、ろ過を行った。ろ液を減圧下で濃縮した。析出した固体にメタノールを加えて分散洗浄を行った。その結果、化合物70の白色固体6.7g(収率88%)を得た。
δ(ppm)=8.23(1H)
8.04(1H)
7.93(2H)
7.88(2H)
7.84-7.79(4H)
7.75(2H)
7.64(5H)
7.55-7.50(6H)
7.41(12H)
7.33(1H)
7.20(2H)
6.98(2H)
6.92(2H)
N-(ビフェニル-4-イル)-N-{4-(ジベンゾフラン-4-イル)フェニル}-N-[4-{(2,4,6-トリフェニル)フェニル}フェニル]アミンの合成;
窒素置換した反応容器に、
1-ブロモ-4-ヨードベンゼン 10.0g、
4-ジベンゾフラニルボロン酸 7.9g、
炭酸カリウム 9.8g、
トルエン 80ml、
エタノール 20mlおよび
水 40ml
を加え、40分間窒素ガスを通気し、混合液を得た。混合液にテトラキストリフェニルホスフィンパラジウム0.8gを加えて加熱し、74℃で6時間撹拌し、反応液を得た。反応液を室温まで冷却した後、水を加えて分液操作を行って有機層を採取した。有機層を硫酸マグネシウムで脱水した後、減圧下で濃縮した。析出した固体をろ過により採取した。その結果、4-(4-ブロモフェニル)ジベンゾフランの黄色固体5.6g(収率49%)を得た。
得られた4-(4-ブロモフェニル)ジベンゾフラン
3.9g、
実施例9の手順2で得られたN-(ビフェニル-4-イル)-N
-{4-(2,4,6-トリフェニルフェニル)フェニル}アミン
6.0g、
ナトリウム-tert-ブトキシド 1.6gおよび
トルエン 60ml
を加え、1時間窒素ガスを通気し、混合液を得た。混合液に
酢酸パラジウム 0.1gおよび
トリ-tert-ブチルホスフィン 0.2g
を加えて加熱し、103℃で3時間撹拌し、反応液を得た。反応液を室温まで冷却した。析出した固体をろ過により採取した。固体にモノクロロベンゼンを加えて加熱溶解した後、シリカゲルを加えて撹拌し、熱時ろ過を行った。ろ液を減圧下で濃縮した。析出した固体にメタノールを加えて分散洗浄を行った。その結果、化合物94の白色固体7.5g(収率87%)を得た。
δ(ppm)=8.24(1H)
8.15(1H)
8.03(2H)
7.95(2H)
7.90(2H)
7.83(2H)
7.79(2H)
7.73(2H)
7.67-7.51(8H)
7.43(11H)
7.30(4H)
7.02(4H)
本発明のアリールアミン化合物について、高感度示差走査熱量計(ブルカー・エイエックスエス製、DSC3100S)を用いてガラス転移点を求めた。
ガラス転移点(℃)
実施例1の化合物(化合物2) 110
実施例2の化合物(化合物10) 121
実施例3の化合物(化合物41) 121
実施例4の化合物(化合物42) 135
実施例5の化合物(化合物57) 128
実施例6の化合物(化合物62) 145
実施例7の化合物(化合物91) 143
実施例8の化合物(化合物92) 144
実施例9の化合物(化合物70) 134
実施例10の化合物(化合物94) 123
本発明の化合物を用いて、ITO基板の上に膜厚100nmの蒸着膜を作製して、イオン化ポテンシャル測定装置(住友重機械工業株式会社製、PYS-202型)で仕事関数を測定した。
仕事関数(eV)
実施例1の化合物(化合物2) 5.71
実施例2の化合物(化合物10) 5.67
実施例3の化合物(化合物41) 5.63
実施例4の化合物(化合物42) 5.55
実施例5の化合物(化合物57) 5.66
実施例6の化合物(化合物62) 5.67
実施例7の化合物(化合物91) 5.70
実施例8の化合物(化合物92) 5.63
実施例9の化合物(化合物70) 5.50
実施例10の化合物(化合物94) 5.70
ガラス基板1上に透明陽極2としてITO電極をあらかじめ形成したものの上に、正孔注入層3、正孔輸送層4、電子阻止層5、発光層6、電子輸送層7、電子注入層8および陰極(アルミニウム電極)9を、この順に蒸着し、図11に示すような有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例2の化合物(化合物10)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例3の化合物(化合物41)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例4の化合物(化合物42)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例5の化合物(化合物57)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例6の化合物(化合物62)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例7の化合物(化合物91)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例8の化合物(化合物92)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例9の化合物(化合物70)を用いた点以外は、同様の条件で有機EL素子を作製した。
素子実施例1において、電子阻止層5の材料として実施例1の化合物(化合物2)に代えて実施例10の化合物(化合物94)を用いた点以外は、同様の条件で有機EL素子を作製した。
発光効率について、素子比較例1~2で4.42~5.76cd/Aであったのに対し、素子実施例1~10では8.04~9.23cd/Aといずれも高効率であった。
電力効率について、素子比較例1~2で3.41~4.43lm/Wであったのに対し、素子実施例1~10では6.78~7.51lm/Wといずれも高効率であった。
素子寿命について、素子比較例1~2で74~81時間であったのに対し、素子実施例1~10では183~250時間と大きく長寿命化していた。
2 透明陽極
3 正孔注入層
4 正孔輸送層
5 電子阻止層
6 発光層
7 電子輸送層
8 電子注入層
9 陰極
Claims (12)
- 下記一般式(1)で表される、アリールアミン化合物。
Ar1、Ar2、Ar3およびAr4は、同一でも異なってもよ
く、芳香族炭化水素基、芳香族複素環基または縮合多環芳香族基
を表し、
Lは、芳香族炭化水素の2価基、芳香族複素環の2価基、縮合
多環芳香族の2価基を表し、
R1、R2およびR3は、同一でも異なってもよく、水素原子、
重水素原子、フッ素原子、塩素原子、シアノ基、ニトロ基、炭素
数1~6のアルキル基、炭素数5~10のシクロアルキル基、炭
素数2~6のアルケニル基、炭素数1~6のアルキルオキシ基、
炭素数5~10のシクロアル基またはアリールオキシ基を表し、
nは1~3の整数を表す。 - Ar3およびAr4は、同一でも異なってもよく、芳香族炭化水素基またはヘテロ原子を有さない縮合多環芳香族基である、請求項1記載のアリールアミン化合物。
- Ar3およびAr4は、同一でも異なってもよく、芳香族炭化水素基またはヘテロ原子を有さない縮合多環芳香族基であり、該芳香族炭化水素基または該縮合多環芳香族基は置換基を有していない、請求項1記載のアリールアミン化合物。
- Ar3およびAr4は、同一でも異なってもよく、フェニル基、ビフェニリル基、ナフチル基、フェナントレニル基、またはフルオレニル基である、請求項1記載のアリールアミン化合物。
- R1およびR3は、同一でも異なってもよく、水素原子または重水素原子である、請求項1記載のアリールアミン化合物。
- Lがフェニレン基である、請求項1記載のアリールアミン化合物。
- Lが1,4-フェニレン基である、請求項1記載のアリールアミン化合物。
- 一対の電極とその間に挟まれた少なくとも一層の有機層を有する有機エレクトロルミネッセンス素子において、
前記有機層に、請求項1に記載のアリールアミン化合物が用いられていることを特徴とする有機エレクトロルミネッセンス素子。 - 前記有機層が正孔輸送層である請求項8記載の有機エレクトロルミネッセンス素子。
- 前記有機層が電子阻止層である請求項8記載の有機エレクトロルミネッセンス素子。
- 前記有機層が正孔注入層である請求項8記載の有機エレクトロルミネッセンス素子。
- 前記有機層が発光層である請求項8記載の有機エレクトロルミネッセンス素子。
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- 2016-06-07 KR KR1020187000816A patent/KR102628064B1/ko active IP Right Grant
- 2016-06-07 EP EP16807450.8A patent/EP3309141B1/en active Active
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Also Published As
Publication number | Publication date |
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JPWO2016199743A1 (ja) | 2018-04-12 |
US20180175301A1 (en) | 2018-06-21 |
EP3309141A4 (en) | 2019-01-16 |
KR102628064B1 (ko) | 2024-01-22 |
JP6735743B2 (ja) | 2020-08-05 |
EP3309141B1 (en) | 2021-09-01 |
KR20180017130A (ko) | 2018-02-20 |
EP3309141A1 (en) | 2018-04-18 |
TW201708183A (zh) | 2017-03-01 |
CN107709285B (zh) | 2021-02-26 |
CN107709285A (zh) | 2018-02-16 |
TWI721990B (zh) | 2021-03-21 |
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