JP6329954B2 - 燐光oledおよび燐光oled用正孔輸送材料 - Google Patents
燐光oledおよび燐光oled用正孔輸送材料 Download PDFInfo
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- JP6329954B2 JP6329954B2 JP2015537255A JP2015537255A JP6329954B2 JP 6329954 B2 JP6329954 B2 JP 6329954B2 JP 2015537255 A JP2015537255 A JP 2015537255A JP 2015537255 A JP2015537255 A JP 2015537255A JP 6329954 B2 JP6329954 B2 JP 6329954B2
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- 239000000463 material Substances 0.000 title description 20
- 230000005525 hole transport Effects 0.000 title description 13
- 150000001875 compounds Chemical class 0.000 claims description 51
- -1 C3-C20 cycloalkyl Chemical group 0.000 claims description 30
- 125000006736 (C6-C20) aryl group Chemical group 0.000 claims description 17
- 230000000903 blocking effect Effects 0.000 claims description 17
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 14
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- 229910052739 hydrogen Inorganic materials 0.000 claims description 11
- 239000001257 hydrogen Substances 0.000 claims description 11
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 9
- 125000003860 C1-C20 alkoxy group Chemical group 0.000 claims description 8
- 125000003118 aryl group Chemical group 0.000 claims description 8
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 5
- 125000003545 alkoxy group Chemical group 0.000 claims description 4
- 125000001072 heteroaryl group Chemical group 0.000 claims description 3
- 125000003837 (C1-C20) alkyl group Chemical group 0.000 claims description 2
- 150000002431 hydrogen Chemical class 0.000 claims 2
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 96
- 239000010410 layer Substances 0.000 description 65
- 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 50
- 238000000425 proton nuclear magnetic resonance spectrum Methods 0.000 description 41
- VLKZOEOYAKHREP-UHFFFAOYSA-N n-Hexane Chemical compound CCCCCC VLKZOEOYAKHREP-UHFFFAOYSA-N 0.000 description 27
- UKSZBOKPHAQOMP-SVLSSHOZSA-N (1e,4e)-1,5-diphenylpenta-1,4-dien-3-one;palladium Chemical compound [Pd].C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1.C=1C=CC=CC=1\C=C\C(=O)\C=C\C1=CC=CC=C1 UKSZBOKPHAQOMP-SVLSSHOZSA-N 0.000 description 25
- LPNYRYFBWFDTMA-UHFFFAOYSA-N potassium tert-butoxide Chemical compound [K+].CC(C)(C)[O-] LPNYRYFBWFDTMA-UHFFFAOYSA-N 0.000 description 25
- YMWUJEATGCHHMB-UHFFFAOYSA-N Dichloromethane Chemical compound ClCCl YMWUJEATGCHHMB-UHFFFAOYSA-N 0.000 description 24
- 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 20
- 238000000589 high-performance liquid chromatography-mass spectrometry Methods 0.000 description 17
- 239000000203 mixture Substances 0.000 description 15
- 239000000758 substrate Substances 0.000 description 15
- 239000000243 solution Substances 0.000 description 14
- 125000001424 substituent group Chemical group 0.000 description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 12
- 238000002290 gas chromatography-mass spectrometry Methods 0.000 description 12
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 11
- MZRVEZGGRBJDDB-UHFFFAOYSA-N N-Butyllithium Chemical compound [Li]CCCC MZRVEZGGRBJDDB-UHFFFAOYSA-N 0.000 description 10
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical group C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 10
- KSCGBFWJQRWORE-UHFFFAOYSA-N n-(4-tert-butylphenyl)-4-phenylaniline Chemical compound C1=CC(C(C)(C)C)=CC=C1NC1=CC=C(C=2C=CC=CC=2)C=C1 KSCGBFWJQRWORE-UHFFFAOYSA-N 0.000 description 10
- 239000002245 particle Substances 0.000 description 10
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 9
- 239000011159 matrix material Substances 0.000 description 9
- 125000004432 carbon atom Chemical group C* 0.000 description 8
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 description 8
- 125000000753 cycloalkyl group Chemical group 0.000 description 8
- 230000006872 improvement Effects 0.000 description 8
- DPKKOVGCHDUSAI-UHFFFAOYSA-N 1,3-dibromo-5-methylbenzene Chemical compound CC1=CC(Br)=CC(Br)=C1 DPKKOVGCHDUSAI-UHFFFAOYSA-N 0.000 description 7
- LKQYEULDFDVLLZ-UHFFFAOYSA-N 3,5-dimethyl-n-(4-phenylphenyl)aniline Chemical compound CC1=CC(C)=CC(NC=2C=CC(=CC=2)C=2C=CC=CC=2)=C1 LKQYEULDFDVLLZ-UHFFFAOYSA-N 0.000 description 7
- MUALRAIOVNYAIW-UHFFFAOYSA-N binap Chemical group C1=CC=CC=C1P(C=1C(=C2C=CC=CC2=CC=1)C=1C2=CC=CC=C2C=CC=1P(C=1C=CC=CC=1)C=1C=CC=CC=1)C1=CC=CC=C1 MUALRAIOVNYAIW-UHFFFAOYSA-N 0.000 description 7
- 238000000655 nuclear magnetic resonance spectrum Methods 0.000 description 7
- 238000004809 thin layer chromatography Methods 0.000 description 7
- YWDUZLFWHVQCHY-UHFFFAOYSA-N 1,3,5-tribromobenzene Chemical compound BrC1=CC(Br)=CC(Br)=C1 YWDUZLFWHVQCHY-UHFFFAOYSA-N 0.000 description 6
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 6
- FJDQFPXHSGXQBY-UHFFFAOYSA-L caesium carbonate Chemical compound [Cs+].[Cs+].[O-]C([O-])=O FJDQFPXHSGXQBY-UHFFFAOYSA-L 0.000 description 6
- 229910000024 caesium carbonate Inorganic materials 0.000 description 6
- 238000002347 injection Methods 0.000 description 6
- 239000007924 injection Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 6
- LXNAVEXFUKBNMK-UHFFFAOYSA-N palladium(II) acetate Substances [Pd].CC(O)=O.CC(O)=O LXNAVEXFUKBNMK-UHFFFAOYSA-N 0.000 description 6
- YJVFFLUZDVXJQI-UHFFFAOYSA-L palladium(ii) acetate Chemical compound [Pd+2].CC([O-])=O.CC([O-])=O YJVFFLUZDVXJQI-UHFFFAOYSA-L 0.000 description 6
- 239000000741 silica gel Substances 0.000 description 6
- 229910002027 silica gel Inorganic materials 0.000 description 6
- RYHBNJHYFVUHQT-UHFFFAOYSA-N 1,4-Dioxane Chemical compound C1COCCO1 RYHBNJHYFVUHQT-UHFFFAOYSA-N 0.000 description 5
- 235000010290 biphenyl Nutrition 0.000 description 5
- 125000000000 cycloalkoxy group Chemical group 0.000 description 5
- 239000002019 doping agent Substances 0.000 description 5
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 5
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- 239000000047 product Substances 0.000 description 5
- HIHYAKDOWUFGBK-UHFFFAOYSA-N 1,3-dibromo-5-phenylbenzene Chemical group BrC1=CC(Br)=CC(C=2C=CC=CC=2)=C1 HIHYAKDOWUFGBK-UHFFFAOYSA-N 0.000 description 4
- PKJBWOWQJHHAHG-UHFFFAOYSA-N 1-bromo-4-phenylbenzene Chemical group C1=CC(Br)=CC=C1C1=CC=CC=C1 PKJBWOWQJHHAHG-UHFFFAOYSA-N 0.000 description 4
- 229910021592 Copper(II) chloride Inorganic materials 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 230000008021 deposition Effects 0.000 description 4
- 238000002451 electron ionisation mass spectrometry Methods 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 125000000027 (C1-C10) alkoxy group Chemical group 0.000 description 3
- CXIUCDYMMHBFFJ-UHFFFAOYSA-N 1,3-dibromo-5-(3,5-dimethylphenyl)benzene Chemical group CC1=CC(C)=CC(C=2C=C(Br)C=C(Br)C=2)=C1 CXIUCDYMMHBFFJ-UHFFFAOYSA-N 0.000 description 3
- JSRLURSZEMLAFO-UHFFFAOYSA-N 1,3-dibromobenzene Chemical compound BrC1=CC=CC(Br)=C1 JSRLURSZEMLAFO-UHFFFAOYSA-N 0.000 description 3
- GRMLGYULZHLWRH-UHFFFAOYSA-N 1-bromo-3-(3-bromo-5-methylphenyl)-5-methylbenzene Chemical group CC1=CC(Br)=CC(C=2C=C(Br)C=C(C)C=2)=C1 GRMLGYULZHLWRH-UHFFFAOYSA-N 0.000 description 3
- MGXWRJYCBAMKOK-UHFFFAOYSA-N 2,4,6-trimethyl-n-(4-phenylphenyl)aniline Chemical compound CC1=CC(C)=CC(C)=C1NC1=CC=C(C=2C=CC=CC=2)C=C1 MGXWRJYCBAMKOK-UHFFFAOYSA-N 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 238000009835 boiling Methods 0.000 description 3
- 238000004440 column chromatography Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 239000012043 crude product Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000002330 electrospray ionisation mass spectrometry Methods 0.000 description 3
- 239000012044 organic layer Substances 0.000 description 3
- 239000012074 organic phase Substances 0.000 description 3
- RZXMPPFPUUCRFN-UHFFFAOYSA-N p-toluidine Chemical compound CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 3
- 150000003335 secondary amines Chemical class 0.000 description 3
- 239000007858 starting material Substances 0.000 description 3
- 150000003512 tertiary amines Chemical class 0.000 description 3
- 125000000008 (C1-C10) alkyl group Chemical group 0.000 description 2
- OQZAQBGJENJMHT-UHFFFAOYSA-N 1,3-dibromo-5-methoxybenzene Chemical compound COC1=CC(Br)=CC(Br)=C1 OQZAQBGJENJMHT-UHFFFAOYSA-N 0.000 description 2
- WZCQRUWWHSTZEM-UHFFFAOYSA-N 1,3-phenylenediamine Chemical compound NC1=CC=CC(N)=C1 WZCQRUWWHSTZEM-UHFFFAOYSA-N 0.000 description 2
- LPLLWKZDMKTEMV-UHFFFAOYSA-N 1-bromo-3-(3-bromophenyl)benzene Chemical group BrC1=CC=CC(C=2C=C(Br)C=CC=2)=C1 LPLLWKZDMKTEMV-UHFFFAOYSA-N 0.000 description 2
- MKARNSWMMBGSHX-UHFFFAOYSA-N 3,5-dimethylaniline Chemical compound CC1=CC(C)=CC(N)=C1 MKARNSWMMBGSHX-UHFFFAOYSA-N 0.000 description 2
- BDOOZZQGKBKQCH-UHFFFAOYSA-N 3-(3,5-dibromophenyl)pyridine Chemical compound BrC1=CC(Br)=CC(C=2C=NC=CC=2)=C1 BDOOZZQGKBKQCH-UHFFFAOYSA-N 0.000 description 2
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 2
- VEKXISZRUSEDKO-UHFFFAOYSA-N C1(=CC=CC2=CC=CC=C12)C1=C(C=CC=C1NC1=CC=CC=C1)NC1=CC=CC=C1 Chemical compound C1(=CC=CC2=CC=CC=C12)C1=C(C=CC=C1NC1=CC=CC=C1)NC1=CC=CC=C1 VEKXISZRUSEDKO-UHFFFAOYSA-N 0.000 description 2
- UXRFTROKAZFRCJ-UHFFFAOYSA-N C1=C(C=CC2=CC=CC=C12)C1=C(C=CC=C1NC1=CC=C(C=C1)C)NC1=CC=C(C=C1)C Chemical compound C1=C(C=CC2=CC=CC=C12)C1=C(C=CC=C1NC1=CC=C(C=C1)C)NC1=CC=C(C=C1)C UXRFTROKAZFRCJ-UHFFFAOYSA-N 0.000 description 2
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical compound C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 125000004122 cyclic group Chemical group 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003480 eluent Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 125000005842 heteroatom Chemical group 0.000 description 2
- 125000000623 heterocyclic group Chemical group 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 125000000956 methoxy group Chemical group [H]C([H])([H])O* 0.000 description 2
- 125000002950 monocyclic group Chemical group 0.000 description 2
- IBJHDUPUTZQCLL-UHFFFAOYSA-N n-(4-methylphenyl)naphthalen-2-amine Chemical compound C1=CC(C)=CC=C1NC1=CC=C(C=CC=C2)C2=C1 IBJHDUPUTZQCLL-UHFFFAOYSA-N 0.000 description 2
- 125000004433 nitrogen atom Chemical group N* 0.000 description 2
- 239000011368 organic material Substances 0.000 description 2
- 229910052760 oxygen Inorganic materials 0.000 description 2
- HXITXNWTGFUOAU-UHFFFAOYSA-N phenylboronic acid Chemical compound OB(O)C1=CC=CC=C1 HXITXNWTGFUOAU-UHFFFAOYSA-N 0.000 description 2
- 125000003367 polycyclic group Chemical group 0.000 description 2
- 230000006798 recombination Effects 0.000 description 2
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- 239000007787 solid Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 238000002207 thermal evaporation Methods 0.000 description 2
- DJGHSJBYKIQHIK-UHFFFAOYSA-N (3,5-dimethylphenyl)boronic acid Chemical compound CC1=CC(C)=CC(B(O)O)=C1 DJGHSJBYKIQHIK-UHFFFAOYSA-N 0.000 description 1
- XPEIJWZLPWNNOK-UHFFFAOYSA-N (4-phenylphenyl)boronic acid Chemical compound C1=CC(B(O)O)=CC=C1C1=CC=CC=C1 XPEIJWZLPWNNOK-UHFFFAOYSA-N 0.000 description 1
- 125000004178 (C1-C4) alkyl group Chemical group 0.000 description 1
- 125000000229 (C1-C4)alkoxy group Chemical group 0.000 description 1
- 125000006755 (C2-C20) alkyl group Chemical group 0.000 description 1
- BLWZWNFGLGRLLJ-UHFFFAOYSA-N 1,3-dibromo-5-[3-(trifluoromethyl)phenyl]benzene Chemical group FC(F)(F)C1=CC=CC(C=2C=C(Br)C=C(Br)C=2)=C1 BLWZWNFGLGRLLJ-UHFFFAOYSA-N 0.000 description 1
- XJKSTNDFUHDPQJ-UHFFFAOYSA-N 1,4-diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=C(C=2C=CC=CC=2)C=C1 XJKSTNDFUHDPQJ-UHFFFAOYSA-N 0.000 description 1
- FXUNKKHKRBPXAE-UHFFFAOYSA-N 1-bromo-3-(3-bromo-5-methoxyphenyl)-5-methoxybenzene Chemical group COC1=CC(Br)=CC(C=2C=C(OC)C=C(Br)C=2)=C1 FXUNKKHKRBPXAE-UHFFFAOYSA-N 0.000 description 1
- KWVPRPSXBZNOHS-UHFFFAOYSA-N 2,4,6-Trimethylaniline Chemical compound CC1=CC(C)=C(N)C(C)=C1 KWVPRPSXBZNOHS-UHFFFAOYSA-N 0.000 description 1
- APSMUYYLXZULMS-UHFFFAOYSA-N 2-bromonaphthalene Chemical compound C1=CC=CC2=CC(Br)=CC=C21 APSMUYYLXZULMS-UHFFFAOYSA-N 0.000 description 1
- JHUUPUMBZGWODW-UHFFFAOYSA-N 3,6-dihydro-1,2-dioxine Chemical compound C1OOCC=C1 JHUUPUMBZGWODW-UHFFFAOYSA-N 0.000 description 1
- XEMDFESAXKSEGI-UHFFFAOYSA-N 3-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)pyridine Chemical compound O1C(C)(C)C(C)(C)OB1C1=CC=CN=C1 XEMDFESAXKSEGI-UHFFFAOYSA-N 0.000 description 1
- CWVPIIWMONJVGG-UHFFFAOYSA-N 3-methyl-n-(3-methylphenyl)aniline Chemical compound CC1=CC=CC(NC=2C=C(C)C=CC=2)=C1 CWVPIIWMONJVGG-UHFFFAOYSA-N 0.000 description 1
- 125000003349 3-pyridyl group Chemical group N1=C([H])C([*])=C([H])C([H])=C1[H] 0.000 description 1
- AWXGSYPUMWKTBR-UHFFFAOYSA-N 4-carbazol-9-yl-n,n-bis(4-carbazol-9-ylphenyl)aniline Chemical compound C12=CC=CC=C2C2=CC=CC=C2N1C1=CC=C(N(C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=2C=CC(=CC=2)N2C3=CC=CC=C3C3=CC=CC=C32)C=C1 AWXGSYPUMWKTBR-UHFFFAOYSA-N 0.000 description 1
- VVXMPSBPRUKVKF-UHFFFAOYSA-N 4-methyl-n-(4-phenylphenyl)aniline Chemical compound C1=CC(C)=CC=C1NC1=CC=C(C=2C=CC=CC=2)C=C1 VVXMPSBPRUKVKF-UHFFFAOYSA-N 0.000 description 1
- WRDWWAVNELMWAM-UHFFFAOYSA-N 4-tert-butylaniline Chemical compound CC(C)(C)C1=CC=C(N)C=C1 WRDWWAVNELMWAM-UHFFFAOYSA-N 0.000 description 1
- 0 Bc1cc(OC)cc(-c2cc(Br)cc(*)c2)c1 Chemical compound Bc1cc(OC)cc(-c2cc(Br)cc(*)c2)c1 0.000 description 1
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- 101000837344 Homo sapiens T-cell leukemia translocation-altered gene protein Proteins 0.000 description 1
- PUGLQYLNHVYWST-NNTIMSFMSA-N N#C/C(/c(c(F)c(c(C#N)c1F)F)c1F)=C(/C1=C(/c(c(F)c(c(C#N)c2F)F)c2F)\C#N)\C1=C(/c(c(F)c(c(C#N)c1F)F)c1F)\C#N Chemical compound N#C/C(/c(c(F)c(c(C#N)c1F)F)c1F)=C(/C1=C(/c(c(F)c(c(C#N)c2F)F)c2F)\C#N)\C1=C(/c(c(F)c(c(C#N)c1F)F)c1F)\C#N PUGLQYLNHVYWST-NNTIMSFMSA-N 0.000 description 1
- AFBPFSWMIHJQDM-UHFFFAOYSA-N N-methyl-N-phenylamine Natural products CNC1=CC=CC=C1 AFBPFSWMIHJQDM-UHFFFAOYSA-N 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- 102100028692 T-cell leukemia translocation-altered gene protein Human genes 0.000 description 1
- WOAORAPRPVIATR-UHFFFAOYSA-N [3-(trifluoromethyl)phenyl]boronic acid Chemical compound OB(O)C1=CC=CC(C(F)(F)F)=C1 WOAORAPRPVIATR-UHFFFAOYSA-N 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 150000004982 aromatic amines Chemical class 0.000 description 1
- 125000003710 aryl alkyl group Chemical group 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
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- ZADPBFCGQRWHPN-UHFFFAOYSA-N boronic acid Chemical compound OBO ZADPBFCGQRWHPN-UHFFFAOYSA-N 0.000 description 1
- 239000012267 brine Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 125000001316 cycloalkyl alkyl group Chemical group 0.000 description 1
- 125000005112 cycloalkylalkoxy group Chemical group 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 230000005283 ground state Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- SKEDXQSRJSUMRP-UHFFFAOYSA-N lithium;quinolin-8-ol Chemical compound [Li].C1=CN=C2C(O)=CC=CC2=C1 SKEDXQSRJSUMRP-UHFFFAOYSA-N 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- 230000009467 reduction Effects 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- SNOOUWRIMMFWNE-UHFFFAOYSA-M sodium;6-[(3,4,5-trimethoxybenzoyl)amino]hexanoate Chemical compound [Na+].COC1=CC(C(=O)NCCCCCC([O-])=O)=CC(OC)=C1OC SNOOUWRIMMFWNE-UHFFFAOYSA-M 0.000 description 1
- HPALAKNZSZLMCH-UHFFFAOYSA-M sodium;chloride;hydrate Chemical compound O.[Na+].[Cl-] HPALAKNZSZLMCH-UHFFFAOYSA-M 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000010972 statistical evaluation Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- 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
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Description
1.基板
2.基板電極(正孔注入(陽極)、通常透明)
3.正孔注入層
4.正孔輸送層(HTL)
5.発光層(EL)
6.電子輸送層(ETL)
7.電子注入層
8.被覆電極(通常、低仕事関数を有する金属、電子注入(陰極))
9.封止材(周囲の影響を遮断するためのもの)。
i)R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つが、C6〜C20のアリールまたはC2〜C20のヘテロアリールであるか、
ii)R2およびR1、同様にR12およびR11が、芳香環を形成するか、
iii)R3およびR2、同様にR13およびR12が、芳香環を形成し、
R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つが、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択され、
xは、0および1から選択される整数であり、x=0の場合、R22は、R1〜R20と同じ意味を有し、x=1の場合、R21およびR22は、水素、C1〜C10のアルキル、C3〜C10のシクロアルキル、C1〜C10のアルコキシ、およびC3〜C10のシクロアルキロキシから独立して選択される。アルキル置換基またはアルコキシ置換基は、飽和または不飽和であり得、直鎖または分枝であり得る。シクロアルキル置換基またはシクロアルコキシ置換基は、飽和または不飽和であり得、単環式または多環式であり得る。置換基における炭素原子の全体数には、当該置換基内の任意のアルキル置換、分枝、および/または環式構造の発生が包含されている。炭素環、またはO、NおよびSから独立して選択される3つ以下のヘテロ原子を含んでいる5員複素環を介して、ヘテロアリール置換基が結合していると好都合である。化合物(I)中の炭素原子の全体数は、150以下であることが好ましい。R1〜R5、R6〜R10、R11〜R15およびR16〜R20から選択される置換基(すなわち、構造(I)において窒素原子に結合しているフェニル環の1つに結合している全ての置換基を意味する)の任意の基の炭素原子の全体数は、20以下であることがより好ましい。R1〜R5、R6〜R10、R11〜R15およびR16〜R20から選択される置換基の任意の基の炭素原子の全体数は、12以下であることが最も好ましい。
i)R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つが、C6〜C20のアリールまたはC2〜C20のヘテロアリールであるか、
ii)R2およびR1、同様にR12およびR11が、芳香環を形成するか、
iii)R3およびR2、同様にR13およびR12が、芳香環を形成し、
R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つが、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択され、
xは、0および1から選択される整数であり、x=0の場合、R22は、R1〜R20と同じ意味を有し、x=1の場合、R21およびR22は、水素、C1〜C10のアルキル、C3〜C10のシクロアルキル、C1〜C10のアルコキシ、およびC3〜C10のシクロアルキロキシから独立して選択される。
i)R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つが、C6〜C20のアリールまたはC2〜C20のヘテロアリールであるか、
ii)R2およびR1、同様にR12およびR11が、芳香環を形成するか、
iii)R3およびR2、同様にR13およびR12が、芳香環を形成し、
R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つは、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択され、その他のR6〜R10、およびその他のR16〜R20は、Hである。
R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つが、C6〜C20のアリールまたはC2〜C20のヘテロアリールであるか、
R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、
R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つが、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択され、
その他のR1〜R5、R6〜R10、R11〜R15、およびR16〜R20は、Hである。
R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つが、フェニルであるか、
R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、
R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つが、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択され、
その他のR1〜R5、R6〜R10、R11〜R15、およびR16〜R20は、Hである。
より優れたOLEDを得るための新たな方法を発見しようとする研究においては、驚くべきことに、以下のような長年知られてきた特定の正孔輸送材料が、
本発明の燐光発光素子における本発明の正孔輸送層および/または電子ブロッキング層以外の部分は、科学文献および特許文献に開示されている種々の材料を用いて種々の構成に製造されてもよい。
p型ドーパントとして、
図1:実験用ボトムエミッション型燐光OLEDの模式図である。
<3,5−ジブロモフェニレンの一般的な処理>
1,3,5−トリブロモベンゼン、ボロン酸およびPd(PPh3)4をトルエンとエタノールとの混合物中に溶解して、脱気された2MのNa2CO3水溶液を加えた。この混合物を18時間還流し、室温まで冷却した後、水相から有機相を分離した。当該水相をトルエンで3回抽出した。混合した有機相を蒸発乾固させ、残渣は溶離液としてジクロロメタン(DCM)を使用してシリカゲルパッドを介して濾過した。溶媒を蒸発させた後、溶離液としてヘキサン:DCM混合物を使用してシリカゲルによるカラムクロマトグラフィによって粗生成物を精製した。薄層クロマトグラフィ(TLC)においては、上部のメインスポットが所望の生成物と特定され、下部のスポットが副生成物である3,5−ジ置換ブロモベンゼンと特定された。
フェニルボロン酸:3.30g(1.0eq,27.1mmol)
Pd(PPh3)4:625mg(2mol%,0.54mmol)
トルエン:160mL
エタノール:54mL
2MのNa2CO3:27mL
収率:5.53g(65%)
GC−MS:m/z=310/312/314。
3,5−ジメチルフェニルボロン酸:5.16g(1.0eq,34.4mmol)
Pd(PPh3)4:795mg(2mol%,0.69mmol)
トルエン:160mL
エタノール:68mL
2MのNa2CO3:34mL
収率:7.13g(61%)
GC−MS:m/z=338/340/342。
4−ビフェニルボロン酸:5.24g(1.0eq,26.47mmol)
Pd(PPh3)4:612mg(2mol%,0.53mmol)
トルエン:160mL
エタノール:52mL
2MのNa2CO3:26mL
収率:4.95g(48%)
GC−MS:m/z=386/388/390。
3−(トリフルオロメチル)フェニルボロン酸:5.03g(1.0eq,26.47mmol)
Pd(PPh3)4:611mg(2mol%,0.53mmol)
トルエン:160mL
エタノール:52mL
2MのNa2CO3:26mL
収率:5.57g(56%)
GC−MS:m/z=378/380/382。
3−(4,4,5,5−テトラメチル−1,3,2−ジオキサボロラン−2−イル)ピリジン:5.43g(1.0eq,26.47mmol)
Pd(PPh3)4:612mg(2mol%,0.53mmol)
トルエン:160mL
エタノール:52mL
2MのNa2CO3:26mL
収率:4.00g(48%)
GC−MS:m/z=311/313/315。
ジブロモ化合物をエーテル中に溶解し、アルミニウム箔によってフラスコを光から遮断した。溶液を−80℃まで冷却し、30分以内にブチルリチウムを加えた。ブチルリチウムの添加後、溶液を−80℃で90分間保持した。激しく撹拌しながら塩化銅(II)を一度に加えた。溶液を室温まで温め、一晩中撹拌した。TLCは、出発材料が消失し、そして混合物中の唯一の成分として新たな生成物が形成されたことを示した。混合物を10%のNH4OH水で3回、塩水で1回、水で1回洗浄した。有機相をMgSO4で乾燥させて、DCM/ヘキサンを1:1の割合で使用してシリカゲルパッドを介して濾過した。溶液を蒸発させた後、沸騰したメタノールで粗組成物を15分間洗浄し、その後濾過して乾燥させた。
n−ブチルリチウム(ヘキサン中に2.5M):100mL(1.0eq,250mmol)
塩化銅(II):36.97g(1.1eq,275mmol)
ジエチルエーテル:800mL
収率:22.06g(56%)
GC−MS:m/z=310/312/314。
n−ブチルリチウム(ヘキサン中に2.5M):100mL(1.0eq,250mmol)
塩化銅(II):36.97g(1.1eq,275mmol)
ジエチルエーテル:800mL
収率:22.1g(52%)
GC−MS:m/z=338/340/342。
n−ブチルリチウム(ヘキサン中に2.5M):27mL(1.0eq,67.8mmol)
塩化銅(II):9.12g(1.1eq,67.8mmol)
ジエチルエーテル:200mL
収率:9.7g(85%)
GC−MS:m/z=370/372/374。
不活性雰囲気下において、ブロモアリール成分、酢酸パラジウム(II)、炭酸セシウムおよび2,2’−ビス(ジフェニルホスフィノ)−1,1’−ビナフチル(BINAP)をフラスコ内にて混合し、1,4−ジオキサン中に溶解した。第1級アリールアミン成分を加えた後、混合物を加熱して還流させ、18〜48時間撹拌した。TLCは、反応が完了したことを示した。当該混合物を室温まで冷却し、シリカゲルパッドを介して濾過した。DCMを用いて洗浄し、溶液を蒸発させた後、粗生成物をカラムクロマトグラフィ(SiO2、ヘキサン:DCM混合物)によって精製した。混合した分画は蒸発乾固され、得られた固体は所望の生成物を得るためにヘキサンから再結晶化された。
p−トルイジン:11.6g(1.5eq,108.6mmol)
酢酸パラジウム(II):488mg(3.0mol%,2.17mmol)
BINAP:2.0g(4.5mol%,3.26mmol)
炭酸セシウム:47.20g(2.0eq,144.9mmol)
ジオキサン:150mL
収率:11.4g(67%)
GC−MS:m/z=233。
4−トルイジン:9.65g(1.05eq,90.1mmol)
酢酸パラジウム(II):578mg(3.0mol%,2.6mmol)
BINAP:2.40g(4.5mol%,3.9mmol)
炭酸セシウム:39.14g(1.4eq,120.1mmol)
ジオキサン:200mL
収率:19.20g(86%)
EI−MS:m/z=259。
4−(tert−ブチル)アニリン:15.36g(1.2eq,102.9mmol)
酢酸パラジウム(II):578mg(3.0mol%,2.57mmol)
BINAP:2.4g(4.5mol%,3.86mmol)
炭酸セシウム:55.90g(2.0eq,171.6mmol)
ジオキサン:220mL
収率:13.9g(54%)
GC−MS:m/z=301。
3,5−ジメチルアニリン:16.38g(1.05eq,135.10mmol)
酢酸パラジウム(II):867mg(3.0mol%,3.86mmol)
BINAP:3.60g(4.5mol%,5.79mmol)
炭酸セシウム:58.70g(1.4eq,180.00mmol)
ジオキサン:300mL
収率:21.34g(60%)
GC−MS:m/z=273。
メシチルアミン:12.18g(1.05eq,90.1mmol)
酢酸パラジウム(II):578mg(3.0mol%,2.57mmol)
BINAP:2.40g(4.5mol%,3.86mmol)
炭酸セシウム:39.13g(1.4eq,120.1mmol)
ジオキサン:200mL
収率:12.53g(51%)
GC−MS:m/z=287。
不活性雰囲気下において、第2級アミン、ジブロモ化合物、ビス(ジベンジリデンアセトン)パラジウム、トリ−tert−ブチルホスフィンおよびカリウム−tert−ブトキシドをフラスコ内にて混合し、トルエン中に溶解した。この混合物を80℃で80分間撹拌し、その後室温まで冷却した。TLCは、出発材料が完全に消失したことを示した。混合物を、シリカゲルパッドを介して濾過し、DCM/ヘキサンが1:2の割合である混合物で洗浄し、蒸発乾固した。沸騰したメタノール中にて粗生成物を撹拌した。室温まで冷却した後、混合物を濾過して生成物を生成した。TLCが、不純物が残っていることを示した場合にはカラムクロマトグラフィを利用した。最後に、全ての第3級アミンは、高真空状態(10−6mbar)下において、勾配昇華によって精製された。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:7.1g(2.1eq,23.6mmol)
ビス(ジベンジリデンアセトン)パラジウム:129mg(2mol%,0.22mmol)
トリ−tert−ブチルホスフィン:68mg(3mol%,0.34mmol)
カリウム−tert−ブトキシド:3.77g(3.0eq,33.6mmol)
トルエン:220mL
収率:7.03g(91%)
HPLC−MS:m/z=691[M+H+]。
N−(p−トリル)ナフタレン−2−アミン:3.92g(2.1eq,16.8mmol)
ビス(ジベンジリデンアセトン)パラジウム:92mg(2.0mol%,0.16mmol)
トリ−tert−ブチルホスフィン:49mg(3mol%,0.24mmol)
カリウム−tert−ブトキシド:2.69g(3.0eq,24mmol)
トルエン:130mL
収率:3.95g(70%)
HPLC−MS:m/z=555[M+H+]。
N−フェニルナフタレン−1−アミン:9.21g(2.1eq,42.0mmol)
ビス(ジベンジリデンアセトン)パラジウム:230mg(2mol%,0.40mmol)
トリ−tert−ブチルホスフィン:121mg(3mol%,0.60mmol)
カリウム−tert−ブトキシド:6.73g(3.0eq,60.0mmol)
トルエン:150mL
収率:9.31g(88%)
HPLC−MS:m/z=527[M+H+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:4.76g(2.1eq,15.8mmol)
ビス(ジベンジリデンアセトン)パラジウム:86mg(2.0mol%,0.15mmol)
トリ−tert−ブチルホスフィン:46mg(3mol%,0.23mmol)
カリウム−tert−ブトキシド:2.52g(3.0eq,22.5mmol)
トルエン:130mL
収率:5.08g(96%)
HPLC−MS:m/z=707[M+H+]。
N−(3,5−ジメチルフェニル)−[1,1’−ビフェニル]−4−アミン:3.5g(2.1eq,12.8mmol)
ビス(ジベンジリデンアセトン)パラジウム:70mg(2mol%,0.12mmol)
トリ−tert−ブチルホスフィン:37mg(3mol%,0.18mmol)
カリウム−tert−ブトキシド:2.05g(3.0eq,18.3mmol)
トルエン:150mL
収率:2.94g(69%)
HPLC−MS:m/z=719[M+Na+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.65g(2.1eq,12.1mmol)
ビス(ジベンジリデンアセトン)パラジウム:66mg(2mol%,0.12mmol)
トリ−tert−ブチルホスフィン:35mg(3mol%,0.17mmol)
カリウム−tert−ブトキシド:1.94g(3.0eq,17.3mmol)
トルエン:150mL
収率:4.17g(96%)
HPLC−MS:m/z=775[M+Na+]。
N−(3,5−ジメチルフェニル)−[1,1’−ビフェニル]−4−アミン:3.50g(2.1eq,12.8mmol)
ビス(ジベンジリデンアセトン)パラジウム:70mg(2mol%,0.12mmol)
トリ−tert−ブチルホスフィン:37mg(3mol%,0.18mmol)
カリウム−tert−ブトキシド:2.05g(3.0eq,18.3mmol)
トルエン:150mL
収率:3.42g(78%)
HPLC−MS:m/z=657[M+Na+]。
N,N−(3,5−ジメチルフェニル)−[1,1’−ビフェニル]−4−アミン:3.38g(2.1eq,12.4mmol)
ビス(ジベンジリデンアセトン)パラジウム:68mg(2mol%,0.12mmol)
トリ−tert−ブチルホスフィン:36mg(3mol%,0.18mmol)
カリウム−tert−ブトキシド:1.98g(3.0eq,17.6mmol)
トルエン:120mL
収率:4.02g(94%)
HPLC−MS:m/z=747[M+Na+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.72g(2.1eq,12.4mmol)
ビス(ジベンジリデンアセトン)パラジウム:68mg(2mol%,0.12mmol)
トリ−tert−ブチルホスフィン:36mg(3mol%,0.18mmol)
カリウム−tert−ブトキシド:1.98g(3.0eq,17.6mmol)
トルエン:120mL
収率:4.43g(97%)
HPLC−MS:m/z=803[M+Na+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.0g(2.1eq,10.1mmol)
ビス(ジベンジリデンアセトン)パラジウム:55mg(2mol%,0.10mmol)
トリ−tert−ブチルホスフィン:29mg(3mol%,0.14mmol)
カリウム−tert−ブトキシド:1.62g(3.0eq,14.4mmol)
トルエン:120mL
収率:2.40g(66%)
HPLC−MS:m/z=754[M+H+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.0g(2.1eq,10.1mmol)
ビス(ジベンジリデンアセトン)パラジウム:55mg(2mol%,0.10mmol)
トリ−tert−ブチルホスフィン:29mg(3mol%,0.14mmol)
カリウム−tert−ブトキシド:1.62g(3.0eq,14.4mmol)
トルエン:120mL
収率:3.29g(84%)
HPLC−MS:m/z=843[M+Na+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.03g(2.1eq,10.1mmol)
ビス(ジベンジリデンアセトン)パラジウム:55mg(2mol%,0.10mmol)
トリ−tert−ブチルホスフィン:29mg(3mol%,0.14mmol)
カリウム−tert−ブトキシド:1.62g(3.0eq,14.4mmol)
トルエン:120mL
収率:3.20g(80%)
HPLC−MS:m/z=851[M+Na+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:6.70g(2.1eq,22.26mmol)
ビス(ジベンジリデンアセトン)パラジウム:121mg(2mol%,0.21mmol)
トリ−tert−ブチルホスフィン:64mg(3mol%,0.32mmol)
カリウム−tert−ブトキシド:3.57g(3.0eq,31.8mmol)
トルエン:180mL
収率:6.70g(94%)
ESI−MS:m/z=677[M+H+]。
N−(3,5−ジメチルフェニル)−[1,1’−ビフェニル]−4−アミン:6.08g(2.1eq,22.26mmol)
ビス(ジベンジリデンアセトン)パラジウム:122mg(2mol%,0.21mmol)
トリ−tert−ブチルホスフィン:64mg(3mol%,0.32mmol)
カリウム−tert−ブトキシド:3.57g(3.0eq,31.8mmol)
トルエン:180mL
収率:5.42g(82%)
ESI−MS:m/z=621[M+H+]。
N−(4−(メチル)フェニル)−[1,1’−ビフェニル]−4−アミン:5.45g(2.1eq,21.00mmol)
ビス(ジベンジリデンアセトン)パラジウム:115mg(2mol%,0.20mmol)
トリ−tert−ブチルホスフィン:61mg(3mol%,0.30mmol)
カリウム−tert−ブトキシド:3.37g(3.0eq,30.0mmol)
トルエン:180mL
収率:4.95g(81%)
ESI−MS:m/z=607[M+H+]。
N−メシチル−[1,1’−ビフェニル]−4−アミン:40.1g(2.1eq,139.5mmol)
ビス(ジベンジリデンアセトン)パラジウム:764mg(2mol%,1.3mmol)
トリ−tert−ブチルホスフィン:404mg(3mol%,2.00mmol)
カリウム−tert−ブトキシド:22.36g(3.0eq,199.3mmol)
トルエン:400mL
収率:22.3g(51%)
HPLC−MS:m/z=663[M+H+]。
ブロモ化合物、第2級アミン、ビス(ジベンジリデンアセトン)パラジウム、トリ−tert−ブチルホスフィンおよびカリウム−tert−ブトキシドをフラスコ内にて混合し、トルエン中に溶解した。TLCが、出発材料が完全に消失したことを示すまで、混合物を80℃で撹拌した。混合物を、シリカゲルパッドを介して濾過し、DCMで洗浄し、蒸発乾固した。沸騰したメタノールで粗製固体を洗浄し、その後濾過した。最終的に所望の生成物を得るために、この手順を熱ヘキサンおよび熱アセトンを用いて繰り返した。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.90g(2.1eq,12.9mmol)
ビス(ジベンジリデンアセトン)パラジウム:68mg(2.0mol%,0.12mmol)
トリ−tert−ブチルホスフィン:36mg(3.0mol%,0.18mmol)
カリウム−tert−ブトキシド:1.98g(3.0eq,17.6mmol)
トルエン:150mL
収率:2.27g(49%)
HPLC−MS:m/z=781[M+H+]。
N−(4−(tert−ブチル)フェニル)−[1,1’−ビフェニル]−4−アミン:3.56g(2.2eq,11.8mmol)
ビス(ジベンジリデンアセトン)パラジウム:62mg(2.0mol%,0.11mmol)
トリ−tert−ブチルホスフィン:33mg(3.0mol%,0.16mmol)
カリウム−tert−ブトキシド:1.81g(3.0eq,16.1mmol)
トルエン:130mL
収率:3.33g(76%)
HPLC−MS:m/z=835[M+Na+]。
N−(3,5−ジメチルフェニル)−[1,1’−ビフェニル]−4−アミン:9.61g(2.1eq,33.51mmol)
ビス(ジベンジリデンアセトン)パラジウム:184mg(2.0mol%,0.32mmol)
トリ−tert−ブチルホスフィン:202mg(3.0mol%,0.48mmol)
カリウム−tert−ブトキシド:5.37g(3.0eq,47.88mmol)
トルエン:250mL
収率:10.56g(91%)
HPLC−MS:m/z=747[M+Na+]。
N−(3,5−ジメチルフェニル)−[1,1’−ビフェニル]−4−アミン:5.60g(2.1eq,22.84mmol)
ビス(ジベンジリデンアセトン)パラジウム:125mg(2.0mol%,0.22mmol)
トリ−tert−ブチルホスフィン:66mg(3.0mol%,0.33mmol)
カリウム−tert−ブトキシド:3.66g(3.0eq,32.6mmol)
トルエン:190mL
収率:6.8g(97%)
EI−MS:m/z=640。
3,3’−ジメチルジフェニルアミン:3.05g(2.1eq,15.44mmol)
ビス(ジベンジリデンアセトン)パラジウム:85mg(2.0mol%,0.15mmol)
トリ−tert−ブチルホスフィン:45mg(3.0mol%,0.22mmol)
カリウム−tert−ブトキシド:2.50g(3.0eq,22.05mmol)
トルエン:180mL
収率:2.8g(66%)
EI−MS:m/z=572。
N−メシチル−[1,1’−ビフェニル]−4−アミン:35.50g(2.1eq,123.5mmol)
ビス(ジベンジリデンアセトン)パラジウム:676mg(2mol%,1.20mmol)
トリ−tert−ブチルホスフィン:364mg(3mol%,1.80mmol)
カリウム−tert−ブトキシド:19.80g(3.0eq,176.4mmol)
トルエン:700mL
収率:27.1g(61%)
HPLC−MS:m/z=753[M+H+]。
N−メシチル−[1,1’−ビフェニル]−4−アミン:10.00g(2.1eq,34.79mmol)
ビス(ジベンジリデンアセトン)パラジウム:190mg(2mol%,0.33mmol)
トリ−tert−ブチルホスフィン:100mg(3mol%,0.50mmol)
カリウム−tert−ブトキシド:5.58g(3.0eq,49.77mmol)
トルエン:230mL
収率:8.7g(72%)
EI−MS:m/z=724。
新規な材料の性能実験をボトムエミッション型燐光有機発光ダイオード(OLED)にて行った。ダイオードを、有機材料(活性層)および金属(電極)の熱蒸着を用いて真空で処理した。複数の素子(活性マトリクスおよび電極)を構成するためにシャドーマスク技術を利用した。6.70mm2の活性領域をそれぞれが有している4つのOLEDを1つの基板上に製造した。16個の同じ酸化インジウムスズ(ITO)基板を、垂直軸の周りを回転可能なテーブル上に4×4の配列で設置して同時に処理した。16個の基板の各々は、シャッタを用いて異なる一組の有機層で覆うことが可能である。ITO基板は清浄にされた後、4×4の配列で熱蒸着ユニットに設置された。参照用p型ドープ層(例えば、D1でドープされたH−1;モル比(97:3))を、最終的なフィルムの厚さが30nmになるように、基板の半分に蒸着した。基板の残りの半分には、研究された本発明の材料と、上記と同じp型ドーパント(同じモル比(97:3)かつ同じ厚さ)とを共蒸着した。基板を90°回転させた後、第2(電子ブロッキング)層を第1層上に蒸着した。ここで、基板の半分は、10nmの参照用化合物(TCTA等)に覆われており、残りの半分は、第1層において用いられた材料と同じ本発明の材料に覆われている(図1参照)。したがって、参照用素子(図1の領域D)は、本発明の材料を含んでいる素子と常に一緒に処理された。この処理によって、日々生じ得る蒸着率、真空の品質またはその他の器具の性能パラメータにおける変化と関係なく、新規な材料の性能を参照例と比較して評価することが可能となる。各領域は、同様に製造されたOLEDを16個含み、当該16個のOLEDのそれぞれについて性能パラメータが評価されたため、得られた実験結果の統計的評価は、表1で示されている測定平均値の統計的有意性を明白に示した。
Claims (7)
- アノードとカソードとの間に、燐光発光体を含んでいる少なくとも1つの発光層と、一般式(I)によって示される化合物を含んでいる少なくとも1つの正孔輸送層および/または電子ブロッキング層とを含んでおり、
i)R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つが、C6〜C20のアリールまたはC2〜C20のヘテロアリールであるか、
ii)R2およびR1、同様にR12およびR11が、芳香環を形成するか、
iii)R3およびR2、同様にR13およびR12が、芳香環を形成し、
R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つが、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択され、
xは、0であり、R 22は、R1〜R20と同じ意味を有することを特徴とする有機発光素子。 - R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つは、C6〜C20のアリールまたはC2〜C20のヘテロアリールであり、その他のR1〜R5、およびその他のR11〜R15は、水素であることを特徴とする請求項1に記載の素子。
- R1〜R5の少なくとも1つ、およびR11〜R15の少なくとも1つは、フェニルであり、その他のR1〜R5、およびその他のR11〜R15は、水素であることを特徴とする請求項1または2に記載の素子。
- R6〜R10の少なくとも2つ、およびR16〜R20の少なくとも2つが、メチルであるか、R6〜R10の少なくとも1つ、およびR16〜R20の少なくとも1つが、C2〜C20のアルキル、C3〜C20のシクロアルキル、C1〜C20のアルコキシ、C3〜C20のシクロアルキロキシ、C7〜C20のアリールアルキル、C6〜C20のアリール、およびC2〜C20のヘテロアリールから選択されることを特徴とする請求項1〜3のいずれか1項に記載の素子。
- 式(I)の化合物を含んでいる少なくとも1つの層が電気的にドープされていることを特徴とする請求項1〜4のいずれか1項に記載の素子。
- 式(I)の化合物を含んでいる上記層は、少なくとも1つのドープされた部分と、当該ドープされた部分よりも少なくドープされているか、ドープされていない少なくとも1つの部分とを有していることを特徴とする請求項5に記載の素子。
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TW201422568A (zh) | 2014-06-16 |
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CN104838517A (zh) | 2015-08-12 |
US20150287930A1 (en) | 2015-10-08 |
WO2014060526A1 (en) | 2014-04-24 |
KR102163089B1 (ko) | 2020-10-07 |
US10868254B2 (en) | 2020-12-15 |
KR20150066585A (ko) | 2015-06-16 |
JP2016502749A (ja) | 2016-01-28 |
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