CN116986998A - Spirobiindene derivative and application thereof - Google Patents
Spirobiindene derivative and application thereof Download PDFInfo
- Publication number
- CN116986998A CN116986998A CN202310969701.5A CN202310969701A CN116986998A CN 116986998 A CN116986998 A CN 116986998A CN 202310969701 A CN202310969701 A CN 202310969701A CN 116986998 A CN116986998 A CN 116986998A
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- CN
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- Prior art keywords
- substituted
- unsubstituted
- group
- layer
- spirobiindan
- Prior art date
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- HTJGPQTUUZKORI-UHFFFAOYSA-N 1,1'-spirobi[indene] Chemical class C12=CC=CC=C2C=CC11C2=CC=CC=C2C=C1 HTJGPQTUUZKORI-UHFFFAOYSA-N 0.000 title description 2
- OPELWUSJOIBVJS-UHFFFAOYSA-N 3,3'-spirobi[1,2-dihydroindene] Chemical class C12=CC=CC=C2CCC11C2=CC=CC=C2CC1 OPELWUSJOIBVJS-UHFFFAOYSA-N 0.000 claims abstract description 42
- 150000001875 compounds Chemical class 0.000 claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000010410 layer Substances 0.000 claims description 163
- -1 dibenzofuranyl Chemical group 0.000 claims description 55
- 125000003118 aryl group Chemical group 0.000 claims description 37
- 230000000903 blocking effect Effects 0.000 claims description 34
- 238000002347 injection Methods 0.000 claims description 33
- 239000007924 injection Substances 0.000 claims description 33
- 230000005525 hole transport Effects 0.000 claims description 22
- 125000000217 alkyl group Chemical group 0.000 claims description 13
- 125000005264 aryl amine group Chemical group 0.000 claims description 13
- 125000000623 heterocyclic group Chemical group 0.000 claims description 11
- 239000012044 organic layer Substances 0.000 claims description 11
- YZCKVEUIGOORGS-OUBTZVSYSA-N Deuterium Chemical compound [2H] YZCKVEUIGOORGS-OUBTZVSYSA-N 0.000 claims description 10
- 229910052805 deuterium Inorganic materials 0.000 claims description 10
- 125000001072 heteroaryl group Chemical group 0.000 claims description 10
- 229910052739 hydrogen Inorganic materials 0.000 claims description 10
- 239000001257 hydrogen Substances 0.000 claims description 10
- 238000002360 preparation method Methods 0.000 claims description 10
- 125000001424 substituent group Chemical group 0.000 claims description 10
- 150000002431 hydrogen Chemical class 0.000 claims description 9
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical class C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 claims description 8
- 125000000609 carbazolyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3NC12)* 0.000 claims description 6
- 125000000753 cycloalkyl group Chemical group 0.000 claims description 6
- 125000005843 halogen group Chemical group 0.000 claims description 6
- 125000005561 phenanthryl group Chemical group 0.000 claims description 6
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 claims description 5
- 125000003342 alkenyl group Chemical group 0.000 claims description 5
- 125000003983 fluorenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3CC12)* 0.000 claims description 5
- 125000001624 naphthyl group Chemical group 0.000 claims description 5
- 125000002560 nitrile group Chemical group 0.000 claims description 5
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 5
- 125000006761 (C6-C60) arylene group Chemical group 0.000 claims description 4
- 235000010290 biphenyl Nutrition 0.000 claims description 4
- 239000004305 biphenyl Substances 0.000 claims description 4
- 125000000392 cycloalkenyl group Chemical group 0.000 claims description 4
- 125000000582 cycloheptyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 4
- 125000000113 cyclohexyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])C1([H])[H] 0.000 claims description 4
- 125000001511 cyclopentyl group Chemical group [H]C1([H])C([H])([H])C([H])([H])C([H])(*)C1([H])[H] 0.000 claims description 4
- 125000005509 dibenzothiophenyl group Chemical group 0.000 claims description 4
- 125000005549 heteroarylene group Chemical group 0.000 claims description 4
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 claims description 4
- 125000002178 anthracenyl group Chemical group C1(=CC=CC2=CC3=CC=CC=C3C=C12)* 0.000 claims description 3
- 125000004196 benzothienyl group Chemical group S1C(=CC2=C1C=CC=C2)* 0.000 claims description 3
- 125000001495 ethyl group Chemical group [H]C([H])([H])C([H])([H])* 0.000 claims description 3
- 125000003914 fluoranthenyl group Chemical group C1(=CC=C2C=CC=C3C4=CC=CC=C4C1=C23)* 0.000 claims description 3
- 125000004404 heteroalkyl group Chemical group 0.000 claims description 3
- 125000000959 isobutyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])* 0.000 claims description 3
- 125000001449 isopropyl group Chemical group [H]C([H])([H])C([H])(*)C([H])([H])[H] 0.000 claims description 3
- 125000000999 tert-butyl group Chemical group [H]C([H])([H])C(*)(C([H])([H])[H])C([H])([H])[H] 0.000 claims description 3
- 125000005580 triphenylene group Chemical group 0.000 claims description 3
- 125000003960 triphenylenyl group Chemical group C1(=CC=CC=2C3=CC=CC=C3C3=CC=CC=C3C12)* 0.000 claims description 3
- 125000001054 5 membered carbocyclic group Chemical group 0.000 claims description 2
- 125000004008 6 membered carbocyclic group Chemical group 0.000 claims description 2
- SLGBZMMZGDRARJ-UHFFFAOYSA-N Triphenylene Natural products C1=CC=C2C3=CC=CC=C3C3=CC=CC=C3C2=C1 SLGBZMMZGDRARJ-UHFFFAOYSA-N 0.000 claims description 2
- 125000000499 benzofuranyl group Chemical group O1C(=CC2=C1C=CC=C2)* 0.000 claims description 2
- 125000000484 butyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 125000004051 hexyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001972 isopentyl group Chemical group [H]C([H])([H])C([H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 claims description 2
- 125000001147 pentyl group Chemical group C(CCCC)* 0.000 claims description 2
- 125000001436 propyl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])[H] 0.000 claims description 2
- 150000004982 aromatic amines Chemical class 0.000 claims 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 21
- 125000004432 carbon atom Chemical group C* 0.000 description 18
- 238000000034 method Methods 0.000 description 18
- 239000007787 solid Substances 0.000 description 11
- 238000001704 evaporation Methods 0.000 description 10
- 239000000126 substance Substances 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- 238000001840 matrix-assisted laser desorption--ionisation time-of-flight mass spectrometry Methods 0.000 description 7
- 239000011368 organic material Substances 0.000 description 7
- 239000000758 substrate Substances 0.000 description 7
- 239000000203 mixture Substances 0.000 description 6
- 239000012074 organic phase Substances 0.000 description 6
- 238000012360 testing method Methods 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 125000004435 hydrogen atom Chemical group [H]* 0.000 description 5
- 238000007639 printing Methods 0.000 description 5
- 125000002943 quinolinyl group Chemical group N1=C(C=CC2=CC=CC=C12)* 0.000 description 5
- 238000007740 vapor deposition Methods 0.000 description 5
- HCDMJFOHIXMBOV-UHFFFAOYSA-N 3-(2,6-difluoro-3,5-dimethoxyphenyl)-1-ethyl-8-(morpholin-4-ylmethyl)-4,7-dihydropyrrolo[4,5]pyrido[1,2-d]pyrimidin-2-one Chemical compound C=1C2=C3N(CC)C(=O)N(C=4C(=C(OC)C=C(OC)C=4F)F)CC3=CN=C2NC=1CN1CCOCC1 HCDMJFOHIXMBOV-UHFFFAOYSA-N 0.000 description 4
- 101000767160 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Intracellular protein transport protein USO1 Proteins 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- WYURNTSHIVDZCO-UHFFFAOYSA-N Tetrahydrofuran Chemical compound C1CCOC1 WYURNTSHIVDZCO-UHFFFAOYSA-N 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 4
- 238000000151 deposition Methods 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 4
- 230000009477 glass transition Effects 0.000 description 4
- 125000005842 heteroatom Chemical group 0.000 description 4
- 125000003454 indenyl group Chemical class C1(C=CC2=CC=CC=C12)* 0.000 description 4
- QPJVMBTYPHYUOC-UHFFFAOYSA-N methyl benzoate Chemical compound COC(=O)C1=CC=CC=C1 QPJVMBTYPHYUOC-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000000741 silica gel Substances 0.000 description 4
- 229910002027 silica gel Inorganic materials 0.000 description 4
- MFRIHAYPQRLWNB-UHFFFAOYSA-N sodium tert-butoxide Chemical compound [Na+].CC(C)(C)[O-] MFRIHAYPQRLWNB-UHFFFAOYSA-N 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Natural products C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 3
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- 101100446506 Mus musculus Fgf3 gene Proteins 0.000 description 3
- 101100348848 Mus musculus Notch4 gene Proteins 0.000 description 3
- 101100317378 Mus musculus Wnt3 gene Proteins 0.000 description 3
- CTQNGGLPUBDAKN-UHFFFAOYSA-N O-Xylene Chemical compound CC1=CC=CC=C1C CTQNGGLPUBDAKN-UHFFFAOYSA-N 0.000 description 3
- 125000005103 alkyl silyl group Chemical group 0.000 description 3
- 125000003277 amino group Chemical group 0.000 description 3
- 125000005605 benzo group Chemical group 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- IVSZLXZYQVIEFR-UHFFFAOYSA-N m-xylene Chemical compound CC1=CC=CC(C)=C1 IVSZLXZYQVIEFR-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 239000002904 solvent Substances 0.000 description 3
- 238000004528 spin coating Methods 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 238000005092 sublimation method Methods 0.000 description 3
- 229910052717 sulfur Inorganic materials 0.000 description 3
- CXWXQJXEFPUFDZ-UHFFFAOYSA-N tetralin Chemical compound C1=CC=C2CCCCC2=C1 CXWXQJXEFPUFDZ-UHFFFAOYSA-N 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- BFIMMTCNYPIMRN-UHFFFAOYSA-N 1,2,3,5-tetramethylbenzene Chemical compound CC1=CC(C)=C(C)C(C)=C1 BFIMMTCNYPIMRN-UHFFFAOYSA-N 0.000 description 2
- CHLICZRVGGXEOD-UHFFFAOYSA-N 1-Methoxy-4-methylbenzene Chemical compound COC1=CC=C(C)C=C1 CHLICZRVGGXEOD-UHFFFAOYSA-N 0.000 description 2
- QPUYECUOLPXSFR-UHFFFAOYSA-N 1-methylnaphthalene Chemical compound C1=CC=C2C(C)=CC=CC2=C1 QPUYECUOLPXSFR-UHFFFAOYSA-N 0.000 description 2
- DXYYSGDWQCSKKO-UHFFFAOYSA-N 2-methylbenzothiazole Chemical compound C1=CC=C2SC(C)=NC2=C1 DXYYSGDWQCSKKO-UHFFFAOYSA-N 0.000 description 2
- KWOLFJPFCHCOCG-UHFFFAOYSA-N Acetophenone Chemical compound CC(=O)C1=CC=CC=C1 KWOLFJPFCHCOCG-UHFFFAOYSA-N 0.000 description 2
- LTEQMZWBSYACLV-UHFFFAOYSA-N Hexylbenzene Chemical compound CCCCCCC1=CC=CC=C1 LTEQMZWBSYACLV-UHFFFAOYSA-N 0.000 description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 2
- URLKBWYHVLBVBO-UHFFFAOYSA-N Para-Xylene Chemical group CC1=CC=C(C)C=C1 URLKBWYHVLBVBO-UHFFFAOYSA-N 0.000 description 2
- PWATWSYOIIXYMA-UHFFFAOYSA-N Pentylbenzene Chemical compound CCCCCC1=CC=CC=C1 PWATWSYOIIXYMA-UHFFFAOYSA-N 0.000 description 2
- DTQVDTLACAAQTR-UHFFFAOYSA-N Trifluoroacetic acid Chemical compound OC(=O)C(F)(F)F DTQVDTLACAAQTR-UHFFFAOYSA-N 0.000 description 2
- 125000001931 aliphatic group Chemical group 0.000 description 2
- 125000000304 alkynyl group Chemical group 0.000 description 2
- RDOXTESZEPMUJZ-UHFFFAOYSA-N anisole Chemical compound COC1=CC=CC=C1 RDOXTESZEPMUJZ-UHFFFAOYSA-N 0.000 description 2
- 239000008346 aqueous phase Substances 0.000 description 2
- 150000004945 aromatic hydrocarbons Chemical class 0.000 description 2
- 125000004104 aryloxy group Chemical group 0.000 description 2
- CUFNKYGDVFVPHO-UHFFFAOYSA-N azulene Chemical compound C1=CC=CC2=CC=CC2=C1 CUFNKYGDVFVPHO-UHFFFAOYSA-N 0.000 description 2
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- IOJUPLGTWVMSFF-UHFFFAOYSA-N benzothiazole Chemical compound C1=CC=C2SC=NC2=C1 IOJUPLGTWVMSFF-UHFFFAOYSA-N 0.000 description 2
- 125000001164 benzothiazolyl group Chemical group S1C(=NC2=C1C=CC=C2)* 0.000 description 2
- 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 2
- XSIFPSYPOVKYCO-UHFFFAOYSA-N butyl benzoate Chemical compound CCCCOC(=O)C1=CC=CC=C1 XSIFPSYPOVKYCO-UHFFFAOYSA-N 0.000 description 2
- 239000012159 carrier gas Substances 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- MVPPADPHJFYWMZ-UHFFFAOYSA-N chlorobenzene Chemical compound ClC1=CC=CC=C1 MVPPADPHJFYWMZ-UHFFFAOYSA-N 0.000 description 2
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- 125000001162 cycloheptenyl group Chemical group C1(=CCCCCC1)* 0.000 description 2
- JHIVVAPYMSGYDF-UHFFFAOYSA-N cyclohexanone Chemical compound O=C1CCCCC1 JHIVVAPYMSGYDF-UHFFFAOYSA-N 0.000 description 2
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- NNBZCPXTIHJBJL-UHFFFAOYSA-N decalin Chemical compound C1CCCC2CCCCC21 NNBZCPXTIHJBJL-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- MHDVGSVTJDSBDK-UHFFFAOYSA-N dibenzyl ether Chemical compound C=1C=CC=CC=1COCC1=CC=CC=C1 MHDVGSVTJDSBDK-UHFFFAOYSA-N 0.000 description 2
- 238000010790 dilution Methods 0.000 description 2
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- SQNZJJAZBFDUTD-UHFFFAOYSA-N durene Chemical compound CC1=CC(C)=C(C)C=C1C SQNZJJAZBFDUTD-UHFFFAOYSA-N 0.000 description 2
- 230000005684 electric field Effects 0.000 description 2
- MTZQAGJQAFMTAQ-UHFFFAOYSA-N ethyl benzoate Chemical compound CCOC(=O)C1=CC=CC=C1 MTZQAGJQAFMTAQ-UHFFFAOYSA-N 0.000 description 2
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- PQNFLJBBNBOBRQ-UHFFFAOYSA-N indane Chemical compound C1=CC=C2CCCC2=C1 PQNFLJBBNBOBRQ-UHFFFAOYSA-N 0.000 description 2
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- 125000006751 (C6-C60) aryloxy group Chemical group 0.000 description 1
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- HYLLZXPMJRMUHH-UHFFFAOYSA-N 1-[2-(2-methoxyethoxy)ethoxy]butane Chemical compound CCCCOCCOCCOC HYLLZXPMJRMUHH-UHFFFAOYSA-N 0.000 description 1
- SNAQINZKMQFYFV-UHFFFAOYSA-N 1-[2-[2-(2-methoxyethoxy)ethoxy]ethoxy]butane Chemical compound CCCCOCCOCCOCCOC SNAQINZKMQFYFV-UHFFFAOYSA-N 0.000 description 1
- RERATEUBWLKDFE-UHFFFAOYSA-N 1-methoxy-2-[2-(2-methoxypropoxy)propoxy]propane Chemical compound COCC(C)OCC(C)OCC(C)OC RERATEUBWLKDFE-UHFFFAOYSA-N 0.000 description 1
- WCOYPFBMFKXWBM-UHFFFAOYSA-N 1-methyl-2-phenoxybenzene Chemical compound CC1=CC=CC=C1OC1=CC=CC=C1 WCOYPFBMFKXWBM-UHFFFAOYSA-N 0.000 description 1
- UDONPJKEOAWFGI-UHFFFAOYSA-N 1-methyl-3-phenoxybenzene Chemical compound CC1=CC=CC(OC=2C=CC=CC=2)=C1 UDONPJKEOAWFGI-UHFFFAOYSA-N 0.000 description 1
- 125000002941 2-furyl group Chemical group O1C([*])=C([H])C([H])=C1[H] 0.000 description 1
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- AUHZEENZYGFFBQ-UHFFFAOYSA-N mesitylene Substances CC1=CC(C)=CC(C)=C1 AUHZEENZYGFFBQ-UHFFFAOYSA-N 0.000 description 1
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- 125000001280 n-hexyl group Chemical group C(CCCCC)* 0.000 description 1
- UNJZLNFHHINVOB-UHFFFAOYSA-N n-naphthalen-1-ylnaphthalen-2-amine Chemical group C1=CC=C2C(NC=3C=C4C=CC=CC4=CC=3)=CC=CC2=C1 UNJZLNFHHINVOB-UHFFFAOYSA-N 0.000 description 1
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- 125000005244 neohexyl group Chemical group [H]C([H])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])C([H])([H])* 0.000 description 1
- 125000001971 neopentyl group Chemical group [H]C([*])([H])C(C([H])([H])[H])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- YCWSUKQGVSGXJO-NTUHNPAUSA-N nifuroxazide Chemical group C1=CC(O)=CC=C1C(=O)N\N=C\C1=CC=C([N+]([O-])=O)O1 YCWSUKQGVSGXJO-NTUHNPAUSA-N 0.000 description 1
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- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 125000002743 phosphorus functional group Chemical group 0.000 description 1
- LFGREXWGYUGZLY-UHFFFAOYSA-N phosphoryl Chemical group [P]=O LFGREXWGYUGZLY-UHFFFAOYSA-N 0.000 description 1
- 238000001126 phototherapy Methods 0.000 description 1
- 125000004193 piperazinyl group Chemical group 0.000 description 1
- 125000003367 polycyclic group Chemical group 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 125000002568 propynyl group Chemical group [*]C#CC([H])([H])[H] 0.000 description 1
- 125000003373 pyrazinyl group Chemical group 0.000 description 1
- 125000003226 pyrazolyl group Chemical group 0.000 description 1
- 125000000246 pyrimidin-2-yl group Chemical group [H]C1=NC(*)=NC([H])=C1[H] 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 125000000168 pyrrolyl group Chemical group 0.000 description 1
- 125000002294 quinazolinyl group Chemical group N1=C(N=CC2=CC=CC=C12)* 0.000 description 1
- 125000001567 quinoxalinyl group Chemical group N1=C(C=NC2=CC=CC=C12)* 0.000 description 1
- 150000003254 radicals Chemical class 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- 238000007650 screen-printing Methods 0.000 description 1
- 125000002914 sec-butyl group Chemical group [H]C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 125000003548 sec-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])(*)C([H])([H])[H] 0.000 description 1
- 230000011664 signaling Effects 0.000 description 1
- 229910000104 sodium hydride Inorganic materials 0.000 description 1
- 239000012312 sodium hydride Substances 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- BDHFUVZGWQCTTF-UHFFFAOYSA-M sulfonate Chemical compound [O-]S(=O)=O BDHFUVZGWQCTTF-UHFFFAOYSA-M 0.000 description 1
- 125000000542 sulfonic acid group Chemical group 0.000 description 1
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- 238000001308 synthesis method Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000010189 synthetic method Methods 0.000 description 1
- 125000001935 tetracenyl group Chemical group C1(=CC=CC2=CC3=CC4=CC=CC=C4C=C3C=C12)* 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 125000003718 tetrahydrofuranyl group Chemical group 0.000 description 1
- 125000005958 tetrahydrothienyl group Chemical group 0.000 description 1
- 125000003831 tetrazolyl group Chemical group 0.000 description 1
- 238000001931 thermography Methods 0.000 description 1
- 125000001544 thienyl group Chemical group 0.000 description 1
- 125000000101 thioether group Chemical group 0.000 description 1
- BZHGXQBPJUHVFW-UHFFFAOYSA-N toluene;tritert-butylphosphane Chemical compound CC1=CC=CC=C1.CC(C)(C)P(C(C)(C)C)C(C)(C)C BZHGXQBPJUHVFW-UHFFFAOYSA-N 0.000 description 1
- 125000004306 triazinyl group Chemical group 0.000 description 1
- YFNKIDBQEZZDLK-UHFFFAOYSA-N triglyme Chemical compound COCCOCCOCCOC YFNKIDBQEZZDLK-UHFFFAOYSA-N 0.000 description 1
- GBXQPDCOMJJCMJ-UHFFFAOYSA-M trimethyl-[6-(trimethylazaniumyl)hexyl]azanium;bromide Chemical compound [Br-].C[N+](C)(C)CCCCCC[N+](C)(C)C GBXQPDCOMJJCMJ-UHFFFAOYSA-M 0.000 description 1
- 125000000026 trimethylsilyl group Chemical group [H]C([H])([H])[Si]([*])(C([H])([H])[H])C([H])([H])[H] 0.000 description 1
- 239000003981 vehicle Substances 0.000 description 1
- PXXNTAGJWPJAGM-UHFFFAOYSA-N vertaline Natural products C1C2C=3C=C(OC)C(OC)=CC=3OC(C=C3)=CC=C3CCC(=O)OC1CC1N2CCCC1 PXXNTAGJWPJAGM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- 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
-
- 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
- C07D209/86—Carbazoles; Hydrogenated carbazoles with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to carbon atoms of the ring system
-
- 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
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
- C07D333/50—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom condensed with carbocyclic rings or ring systems
- C07D333/76—Dibenzothiophenes
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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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/14—Carrier transporting layers
- H10K50/15—Hole transporting layers
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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
- H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
- H10K50/18—Carrier blocking layers
- H10K50/181—Electron blocking layers
-
- 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
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
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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
- H10K85/615—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene
- H10K85/623—Polycyclic condensed aromatic hydrocarbons, e.g. anthracene containing five rings, e.g. pentacene
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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
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6572—Polycyclic condensed heteroaromatic hydrocarbons comprising only nitrogen in the heteroaromatic polycondensed ring system, e.g. phenanthroline or carbazole
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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
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6574—Polycyclic condensed heteroaromatic hydrocarbons comprising only oxygen in the heteroaromatic polycondensed ring system, e.g. cumarine dyes
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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
- H10K85/649—Aromatic compounds comprising a hetero atom
- H10K85/657—Polycyclic condensed heteroaromatic hydrocarbons
- H10K85/6576—Polycyclic condensed heteroaromatic hydrocarbons comprising only sulfur in the heteroaromatic polycondensed ring system, e.g. benzothiophene
-
- 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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- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C2603/00—Systems containing at least three condensed rings
- C07C2603/93—Spiro compounds
- C07C2603/94—Spiro compounds containing "free" spiro atoms
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Abstract
The invention relates to the technical field of organic electroluminescent materials, in particular to a spirobiindan derivative and application thereof in electronic elements and electronic devices. The structural formula of the spirobiindan derivative is shown as a formula (I); the compound shown in the formula (I) provided by the invention has a spirobiindan mother nucleus structure. The compound is applied to an organic electroluminescent element, and can obviously reduce the driving voltage, improve the luminous efficiency and prolong the service life.
Description
Technical Field
The invention relates to the technical field of organic electroluminescent materials, in particular to a spirobiindan derivative and application thereof in organic light-emitting elements and electronic devices.
Background
Most of the materials used in the organic electroluminescent element are pure organic materials or organometallic complexes of organic materials and metals, and they are classified into hole injection materials, hole transport materials, light emitting materials, electron transport materials, electron injection materials, and the like, depending on the application. Here, an organic substance having a relatively small ionization energy is mainly used as the hole injection substance or the hole transport substance, and an organic substance having a relatively large electronegativity is mainly used as the electron injection substance or the electron transport substance.
Further, the substance used as the light-emitting auxiliary layer preferably satisfies the following characteristics:
first, the materials used in the organic electroluminescent element need to have good thermal stability because joule heat is generated by charge transfer inside the organic electroluminescent element, and conventionally, the glass transition temperature of the materials generally used as hole transport layers is low, and thus, a phenomenon occurs in which light emission efficiency is lowered due to crystallization occurring at the time of driving at low temperature. Second, in order to reduce the driving voltage, it is necessary that the organic material adjacent to the cathode and anode is designed to have a small charge injection barrier and a high charge mobility. Third, there is always an energy barrier at the interface of the electrode and the organic layer, and at the interface of the organic layer and the organic layer, and some charges are inevitably accumulated, so that it is necessary to use a substance excellent in electrochemical stability.
The organic electroluminescent device generally includes an anode, a hole injection layer, a hole transport layer, an electroluminescent layer as an energy conversion layer, an electron transport layer, and a cathode, which are sequentially stacked. When voltage is applied to the cathode and the anode, the two electrodes generate an electric field, electrons at the cathode side move to the electroluminescent layer under the action of the electric field, holes at the anode side also move to the luminescent layer, the electrons and the holes are combined in the electroluminescent layer to form excitons, and the excitons are in an excited state to release energy outwards, so that the electroluminescent layer emits light, and therefore, the luminous efficiency of the luminous device depends on the utilization rate and the light extraction efficiency of the excitons. The low light extraction efficiency is one of the common problems of the organic light emitting device, and particularly, attenuation due to reflection caused by the difference in refractive index of the organic material between layers becomes a main cause of the reduction in device efficiency. In order to reduce this influence, it is necessary to form an organic layer formed of a material having a low refractive index on the light-emitting side. However, the organic material has a higher refractive index from the compound of unsaturated bond with high carrier transport property and thermal stability.
For the above reasons, the present invention has been made.
Disclosure of Invention
The invention aims to provide a spirobiindan derivative, which introduces spirobiindan with an orthogonal structure into triarylamine to improve the proportion of saturated groups in an organic material, wherein the spirobiindan derivative can reduce the refractive index, improve the thermal stability of the material and the capability of transporting carriers, and an organic electroluminescent element prepared by using the spirobiindan derivative can obviously reduce the driving voltage, improve the luminous efficiency and prolong the service life; it is a further object of the present invention to provide the use of the compounds.
Specifically, the invention provides the following technical scheme:
the invention provides a spirobiindan derivative, which has a structural formula shown in a formula (I):
wherein ring a represents a 5-membered carbocycle, a 5-membered heterocycle, a 6-membered carbocycle, a 6-membered heterocycle, or no ring a;
R 1 ～R 8 each independently selected from the group consisting of hydrogen, deuterium, substituted or unsubstituted C 1 -C 40 Alkyl, substituted or unsubstituted C 2 -C 40 Alkenyl, substituted or unsubstituted C 1 -C 40 Heteroalkyl groupSubstituted or unsubstituted C 3 -C 40 Cycloalkyl, substituted or unsubstituted C 3 -C 40 Cycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Arylamine group, substituted or unsubstituted C 2 -C 60 Heteroaryl group, R 1 And R is 2 、R 3 And R is 4 、R 5 And R is 6 、R 7 And R is 8 Optionally joined to form a substituted or unsubstituted ring;
R a 、R b each independently represents one or more to saturated substituents, each independently selected from the group consisting of hydrogen, deuterium, a halogen atom, a nitrile group, a substituted or unsubstituted C 1 -C 40 Alkyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 10 -C 60 Condensed ring aryl, substituted or unsubstituted C 6 -C 60 Arylamine group, substituted or unsubstituted C 2 -C 60 A heterocyclic aryl group, or a group of groups of formula (II), two or more adjacent R a 、R b Optionally joined or fused to form a substituted or unsubstituted ring; and at R a 、R b At least one of them is a group represented by the formula (II);
L 1 selected from single bonds, substituted or unsubstituted C 6 -C 60 Arylene, or substituted or unsubstituted C 2 -C 60 A group consisting of heteroarylenes;
m is an integer of 0 to 5;
y is an integer of 1 to 5;
Ar 1 、Ar 2 each independently selected from the group consisting of substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 10 -C 60 Condensed ring aryl, substituted or unsubstituted C 6 -C 60 Arylamine groups, or substituted or unsubstituted C 2 -C 60 A group consisting of heteroaryl groups;
* -representing the position of the bond.
In the substituted or unsubstituted ring formed by joining or ring closure as described in the present invention, "ring" means a substituted or unsubstituted hydrocarbon ring, or a substituted or unsubstituted heterocyclic ring. The condensed ring means a condensed aliphatic ring, a condensed aromatic ring, a condensed aliphatic heterocyclic ring, a condensed aromatic heterocyclic ring, or a combination thereof.
The spirobiindane derivative according to the invention is represented by the above-mentioned chemical formula (I), and comprises a basic skeleton formed by the combination of the formula (I) and at least one group of the formula (II). The compound represented by the formula (I) of the present invention is electrochemically stable, has excellent hole mobility and electron blocking ability, has a high glass transition temperature, and has excellent thermal stability, as compared with the conventionally known B-1 to B-3 structures.
Thus, the spirobiindane derivative of the invention is excellent in hole transporting ability and electron blocking ability, and thus can be used as a material for any one of a hole injection layer, a hole transport auxiliary layer, and an electron blocking layer of an organic electroluminescent element. The material that can be used as any one of the hole transport auxiliary layer and the electron blocking layer is preferable, and the material that can be used as the electron blocking layer is more preferable.
Specifically, the compound represented by the formula (I) of the present invention has a smaller refractive index, a stronger hole transporting ability and electron blocking ability, and can exhibit a relatively high luminous efficiency and a high glass transition temperature, as compared with the known indene derivatives B-1, B-2 and B-3, by a plurality of substituted or unsubstituted spirobiindan derivatives. Thus, when the spirobiindane derivative represented by the formula (I) of the present invention is used for an organic electroluminescent element, not only excellent thermal stability and carrier transport ability, particularly electron blocking ability and light emitting ability, but also reduction in driving voltage of the element, improvement in efficiency and lifetime, etc., can be expected, and an excellent efficiency increase due to a triplet-triplet fusion effect can be exhibited due to a high triplet energy level as a latest electron blocking layer material.
Further, the spirobiindan derivative represented by the formula (I) of the present invention is prepared by reacting a spirobiindan derivative represented by the formula (I) of the present invention with a compound represented by the formula (I) containing a substituent R 1 ～R 8 And R is a 、R b By adjusting the HOMO and LUMO levels according to the types of substituents, the organic electroluminescent element using such a compound can have a wider electrochemical energy level difference Eg, and hole transport properties and electron blocking properties can be improved.
In addition, the spirobiindan derivative represented by the formula (I) of the present invention has higher thermal stability than conventional luminescent materials by significantly increasing the molecular weight of the compound by introducing various substituted or unsubstituted groups of the formula (II) into the basic skeleton, thereby increasing the glass transition temperature. Therefore, the performance and lifetime characteristics of the organic electroluminescent element comprising the compound according to the present invention can be greatly improved. The organic electroluminescent element thus improved in performance and lifetime characteristics can eventually maximize the performance of the full-color organic light-emitting panel.
Aryl groups in the sense of the present invention contain 6 to 60 carbon atoms, heteroaryl groups contain 2 to 60 carbon atoms and at least one heteroatom, provided that the sum of carbon atoms and heteroatoms is at least 5; the heteroatom is preferably selected from N, O or S. In this case, two or more rings of the heteroaryl group may be attached to each other simply or in a condensed form, or may further include a condensed form with the aryl group. As non-limiting examples of such heteroaryl groups, six-membered monocyclic rings such as pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, triazinyl, and the like can be cited; polycyclic rings such as phenoxazolyl, indolizinyl, indolyl, purinyl, quinolinyl, benzothiazolyl, carbazolyl, and the like; 2-furyl, N-imidazolyl, 2-isoxazolyl, 2-pyridyl, 2-pyrimidinyl, and the like.
Alkyl radicals in the sense of the present invention contain 1 to 40 carbon atoms and in which the individual hydrogen atoms or-CH 2 -linear alkyl groups or alkyl groups with branches, the groups of which may also be substituted; alkenyl or alkynyl radicals containing at least two carbon atoms asBy way of non-limiting example, alkyl, alkenyl or alkynyl is preferably considered to mean the following groups: methyl, ethyl, n-propyl, isopropyl, n-butyl, isobutyl, sec-butyl, tert-butyl, 2-methylbutyl, n-pentyl, sec-pentyl, neopentyl, cyclopentyl, n-hexyl, neohexyl, cyclohexyl, n-heptyl, cycloheptyl, n-octyl, cyclooctyl, 2-ethylhexyl, cyclohexenyl, heptenyl, cycloheptenyl, octenyl, cyclooctenyl, ethynyl, propynyl, butynyl, pentynyl, hexynyl, heptynyl or octynyl.
Alkoxy is preferably an alkoxy group having 1 to 40 carbon atoms, which is taken to mean methoxy, trifluoromethoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, sec-butoxy, tert-butoxy, n-pentoxy, sec-pentoxy, 2-methylbutoxy, n-hexoxy, cyclohexyloxy, n-heptoxy, cycloheptyloxy, n-octoxy, cyclooctyloxy, 2-ethylhexyloxy, pentafluoroethoxy and 2, 2-trifluoroethoxy.
Heteroalkyl is preferably an alkyl radical having from 1 to 40 carbon atoms, meaning in which the hydrogen atom or-CH is alone 2 Groups substituted with oxygen, sulfur, halogen atoms, as non-limiting examples, alkoxy, alkylthio, fluoroalkoxy, fluoroalkylthio, in particular methoxy, ethoxy, n-propoxy, isopropoxy, n-butoxy, isobutoxy, sec-butoxy, tert-butoxy, methylthio, ethylthio, n-propylthio, isopropylthio, n-butylthio, isobutylthio, sec-butylthio, tert-butylthio, trifluoromethylthio, trifluoromethoxy, pentafluoroethoxy, pentafluoroethylthio, 2-trifluoroethoxy, 2-trifluoroethylthio, ethyleneoxy, ethylenethio, propyleneoxy, propylenethio, butylenethio, butyleneoxy, pentenyloxy, pentenylthio, cyclopentenyloxy, cyclopentenylthio, hexenyloxy, hexenylthio, cyclohexene thio, acetylenyloxy, acetylenylthio, propynyloxy, butynylthio, pentynyloxy, pentynylthio, hexyloxy, hexylynylthio.
In general, cycloalkyl groups, cycloalkenyl groups according to the invention may be cyclopropaneA radical, cyclobutyl, cyclopentyl, cyclohexyl, cyclobutenyl, cyclopentenyl, cyclohexenyl, cycloheptyl, cycloheptenyl, one or more of which-CH 2 The groups may be replaced by the groups described above; in addition, one or more hydrogen atoms may be replaced by deuterium atoms, halogen atoms, or nitrile groups.
The heterocycloalkyl group used in the present invention means a monovalent functional group obtained by removing one hydrogen atom from a non-aromatic hydrocarbon having a atomic number of 3 to 40. At this time, one or more carbons, preferably 1 to 3 carbons, in the ring are substituted with a heteroatom such as N, O or S. As non-limiting examples thereof, there are tetrahydrofuranyl, tetrahydrothienyl, morpholinyl, piperazinyl, and the like.
The condensed ring aryl group used in the present invention means a monovalent functional group obtained by removing one hydrogen atom from an aromatic hydrocarbon having 10 to 60 carbon atoms, which is a combination of two or more rings. In this case, two or more rings may be attached to each other singly or in a condensed form. As non-limiting examples thereof, there may be mentioned phenanthryl, anthracyl, fluoranthracyl, pyrenyl, triphenylenyl, perylenyl,A base, etc.
As the arylamine group used in the present invention, an arylamine group refers to an amine substituted with an aryl group having 6 to 60 carbon atoms, and as non-limiting examples of the arylamine group, there are a diphenylamino group, an N-phenyl-1-naphthylamine group, an N- (1-naphthyl) -2-naphthylamine group and the like. The heteroarylamino group means an amine substituted with an aryl group having 6 to 60 carbon atoms and a heteroaryl group having 2 to 60 carbon atoms, and as non-limiting examples of the heteroarylamino group, there are N-phenylpyridine-3-amino, N- ([ 1,1 '-biphenyl ] -4-yl) dibenzo [ b, d ] furan-2-amino, N- ([ 1,1' -biphenyl ] -4-yl) -9, 9-dimethyl-9H-fluorene-2-amino, and the like.
Aryloxy as used herein refers to R' O - The monovalent functional group represented by R' is an aryl group having 6 to 60 carbon atoms. As non-limiting examples of such aryloxy groups, there are phenoxy, naphthoxy, biphenyloxy, and the like.
The alkylsilyl group used in the present invention means a silyl group substituted with an alkyl group having 1 to 40 carbon atoms, and the number of carbon atoms constituting the alkylsilyl group is at least 3, and as non-limiting examples of the alkylsilyl group, there are trimethylsilyl group, triethylsilyl group and the like. Arylsilyl refers to silyl groups substituted with aryl groups having from 6 to 60 carbon atoms.
The arylphosphorus group used in the present invention means a diarylphosphorus group substituted with an aryl group having 6 to 60 carbon atoms, and as non-limiting examples of the arylphosphorus group, there are diphenylphosphorus group, bis (4-trimethylsilylbenzene) phosphorus group and the like. The phosphorus atom of the aryl phosphorus oxide group is the diaryl phosphorus group is oxidized to the highest valence state.
The arylboron group used in the present invention means a diarylboroyl group substituted with an aryl group having 6 to 60 carbon atoms, and as non-limiting examples of the arylboron group, there are diphenyl boron group, bis (2, 4, 6-trimethylbenzene) boron group and the like. The alkylboryl group means a dialkylboryl group substituted with an alkyl group having 1 to 40 carbon atoms, and as non-limiting examples of the alkylboryl group, there are di-t-butylboryl group, diisobutylboryl group and the like.
Preferably, the aryl, heteroaryl or heteroaryl group is preferably selected from the group consisting of phenyl, naphthyl, anthracenyl, benzanthracenyl, phenanthryl, pyrenyl,a group, perylene group, fluoranthenyl group, naphthacene group, pentacene group, benzopyrene group, biphenyl group, terphenyl group, tripolyphenyl group, tetrabiphenyl group, fluorenyl group, spirobifluorenyl group, dihydrophenanthrene group, triphenylene group, dihydropyrenyl group, tetrahydropyrenyl group, cis-or trans-indenofluorenyl group, cis-or trans-indenocarbazolyl group, indolocarbazolyl group, benzofuranocarbazolyl group, benzothiophenocarbazolyl group, benzocarbazolyl group, dibenzocarbazolyl group, azadibenzo [ g, iD]Naphtho [2,1,8-cde]Azulene, triindenyl, heterotrimeric indenyl, spirotrimeric indenyl, spiroheterotrimeric indenyl, furyl, benzofuryl, isobenzofuryl, dibenzofuryl, thienyl, benzothienyl, isobenzothienyl, dibenzothienyl, pyrrolyl, indolyl, isoindolyl, carbazolyl, pyridyl, quinolinyl, isoquinolinyl, acridinyl, phenanthridinyl, benzo [5,6 ]]Quinolinyl, benzo [6,7]Quinolinyl, benzo [7,8]Quinolinyl, phenonesThiazinyl, phenoxazinyl, pyrazolyl, indazolyl, imidazolyl, benzimidazolyl, naphthaimidazolyl, phenanthroimidazolyl, pyridoimidazolyl, pyrazinoimidazolyl, quinoxalinoimidazolyl, oxazolyl, benzoxazolyl, naphthazolyl, anthracnose oxazolyl, phenanthrooxazolyl, isoxazolyl, 1, 2-thiazolyl, 1, 3-thiazolyl, benzothiazolyl, pyridazinyl, hexaazabenzophenanthryl, benzopyridazinyl, pyrimidinyl, benzopyrimidinyl, quinoxalinyl, 1, 5-diazaanthryl, 2, 7-diazapyrenyl, 2, 3-diazapyrenyl, 1, 6-diazapyrenyl, 1, 8-diazapyrenyl, 4,5,9, 10-tetrazole perylenyl, pyrazinyl phenazinyl, phenoxazinyl, phenothiazinyl, fluororubenyl, naphthyridinyl, azacarbazolyl, benzocarboline, carboline, phenanthroline, 1,2, 3-triazolyl, 1,2, 4-triazolyl, benzotriazole, 1,2, 3-oxadiazolyl, 1,2, 4-oxadiazolyl, 1,2, 5-oxadiazolyl, 1,3, 4-oxadiazolyl, 1,2, 3-thiadiazolyl, 1,2, 4-thiadiazolyl, 1,2, 5-thiadiazolyl, 1,3, 4-thiadiazolyl, 1,3, 5-triazinyl, 1,2, 4-triazinyl, 1,2, 3-triazinyl, tetrazolyl, 1,2,4, 5-tetrazinyl, 1,2,3, 4-tetrazinyl, 1,2,3, 5-tetrazinyl, purinyl, naphthyridinyl, quinazolinyl, and benzothiadiazolyl or combinations thereof.
Preferably, the spirobiindane derivative represented by the formula (I) of the present invention is selected from the group consisting of the following structures:
wherein R is a 、R b 、R 1 ～R 8 、L 1 、m、Ar 1 、Ar 2 The meaning of (a) is as defined for formula (I);
L 2 selected from single bonds, substituted or unsubstituted C 6 -C 60 Arylene, or substituted or unsubstituted C 2 -C 60 A group consisting of heteroarylenes;
n is an integer of 0 to 5;
Ar 3 、Ar 4 each independently selected from the group consisting of substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Condensed ring aryl, substituted or unsubstituted C 6 -C 60 Arylamine groups, or substituted or unsubstituted C 2 -C 60 A heterocyclic aryl group.
Further, the R 1 ～R 8 Each independently selected from the group consisting of hydrogen, deuterium, substituted or unsubstituted C 1 -C 40 Alkyl, substituted or unsubstituted C 3 -C 40 Cycloalkyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 An arylamine group.
Further, m is 0, 1 or 2.
Further, n is 0, 1 or 2.
Preferably, said R 1 ～R 8 Each independently selected from the group consisting of hydrogen, deuterium, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, cyclopentyl, isopentyl, hexyl, cyclohexyl, cycloheptyl, substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted triphenylene, substituted or unsubstituted carbazolyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted dibenzofuranyl, and substituted or unsubstituted dibenzothiophenyl.
According to an embodiment of the invention, the R 1 ～R 8 Each independently selected from hydrogen or methyl.
Further, the Ar 1 、Ar 2 、Ar 3 、Ar 4 Each independently selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted tetrabenzoyl, substituted or unsubstituted naphthyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted triphenylenyl, substituted or unsubstituted carbazolyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted anthracenyl, substituted or unsubstituted fluoranthenyl, substituted or unsubstituted benzofuranyl, substituted or unsubstituted benzothienyl, substituted or unsubstituted dibenzofuranyl, or substituted or unsubstituted dibenzothiophenyl.
Preferably, the L 1 、L 2 Each independently selected from a single bond or from the group consisting of groups III-1 to III-23:
wherein the dotted line represents the linking site of the group, and the binding site of the groups represented by the above formulas III-1 to III-23 is not limited, and may be any of ortho-, meta-, and para-ones. L as described above 1 、L 2 Can be independently selected from deuterium, halogen atom, nitrile group, C 1 -C 40 Alkyl, C 6 -C 60 Aryl and C 2 -C 60 When the substituent is plural, it is preferable that the plural substituents are the same or different from each other.
In the present invention, the term "substituted or unsubstituted" means that the compound is selected from hydrogen, deuterium, halogen atom, hydroxyl group, nitrile group, nitro group, amino group, amidino group, hydrazine group, hydrazone group, carboxyl group or carboxylate thereof, sulfonic acid group or sulfonate thereof, phosphoric acid group or phosphate thereof, and C 1 -C 40 Alkyl, C 2 -C 40 Alkenyl, C 2 -C 40 Alkynyl, C 1 -C 40 Alkoxy, C 3 -C 40 Cycloalkyl, C 3 -C 40 Cycloalkenyl, C 6 -C 60 Aryl, C 6 -C 60 Aryloxy, C 6 -C 60 Aryl sulfide group and C 2 -C 60 More than 1 substituent in the heterocyclic aryl group is substituted or unsubstituted, or a substituent which is formed by connecting more than 2 substituents in the above exemplified substituents is substituted or unsubstituted.
Preferably, the spirobiindan derivative is selected from compounds represented by the following formulas D100-D225:
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wherein, -X, -T, -are each independently selected from, -O, -S, -or one of the structures shown below:
* -and- (x) represents a bond.
The invention also provides an organic electroluminescent material with low refractive index, which comprises the spirobiindan derivative; the organic electroluminescent material comprising the spirobiindan derivative of the invention has carrier transport capability and electron blocking capability.
The invention also provides application of the spirobiindan derivative in preparation of an organic electroluminescent element.
The present invention also provides an organic electroluminescent element comprising: a first electrode, a second electrode, a capping layer, and one or more organic layers disposed between the first electrode and the second electrode; the material of at least one of the organic layer or the capping layer includes the spirobiindan derivative described above.
The organic electroluminescent element comprises a cathode, an anode and at least one light emitting layer. In addition to these layers, it may also comprise further layers, for example in each case one or more hole-injection layers, hole-transport layers, hole-blocking layers, electron-transport layers, electron-injection layers, exciton-blocking layers, electron-blocking layers and/or charge-generating layers. An intermediate layer having, for example, an exciton blocking function can likewise be introduced between the two light-emitting layers. It should be noted, however, that not every one of these layers need be present. The organic electroluminescent device described herein may comprise one light emitting layer, or it may comprise a plurality of light emitting layers. That is, a plurality of light-emitting compounds capable of emitting light are used in the light-emitting layer. Particularly preferred is a system with three light-emitting layers, wherein the three layers can display blue, green and red light emission. If more than one light-emitting layer is present, at least one of these layers comprises a spirobiindan derivative of the invention according to the invention.
Further, the organic electroluminescent element according to the present invention does not comprise a separate hole injection layer and/or hole transport layer and/or hole blocking layer and/or electron transport layer, i.e. the light emitting layer is directly adjacent to the electron blocking layer or hole transport layer or anode and/or the light emitting layer is directly adjacent to the electron transport layer or electron injection layer or cathode.
In the other layers of the organic electroluminescent element according to the invention, in particular in the hole injection and hole transport layers and in the electron injection and electron transport layers, all materials can be used in the manner generally used according to the prior art. A person of ordinary skill in the art will thus be able to use all materials known in relation to organic electroluminescent elements in combination with the light-emitting layer according to the invention without inventive effort.
Furthermore, preference is given to organic electroluminescent elements in which one or more layers are applied by means of a sublimation process, wherein the sublimation process is carried out in a vacuum at a temperature of less than 10 -5 Pa, preferably below 10 -6 The material is applied by vapor deposition at an initial pressure of Pa. However, the initial pressure may also be even lower, for example below 10 -7 Pa。
Preference is likewise given to organic electroluminescent elements in which one or more layers are applied by means of an organic vapor deposition method or by means of carrier gas sublimation, where at 10 -5 The material is applied at a pressure between Pa and 1 Pa. A particular example of this method is an organic vapor jet printing method, wherein the material is applied directly through a nozzle and is thus structured.
Furthermore, organic electroluminescent elements are preferred, from which one or more layers are produced, for example by spin coating, or by means of any desired printing method, for example screen printing, flexography, lithography, photoinitiated thermal imaging, thermal transfer, inkjet printing or nozzle printing. Soluble compounds, for example, are obtained by appropriate substitution. These methods are also particularly suitable for oligomers, dendrimers and polymers. Furthermore, a hybrid method is possible, in which one or more layers are applied, for example from a solution, and one or more further layers are applied by vapor deposition.
These methods are generally known to those of ordinary skill in the art and they can be applied to the organic electroluminescent element comprising the compound according to the present invention without inventive effort.
The invention therefore also relates to a method for manufacturing an organic electroluminescent element according to the invention, at least one layer being applied by means of a sublimation method, and/or characterized in that at least one layer is applied by means of an organic vapour deposition method or by means of carrier gas sublimation, and/or in that at least one layer is applied from solution by spin coating or by means of a printing method.
Furthermore, the present invention relates to spirobiindan derivatives comprising at least one of the above-indicated invention. The same preferable cases as indicated above with respect to the organic electroluminescent element apply to the compound of the present invention. In particular, it may be preferable to include other compounds in addition to the spirobiindane derivative. Treatment of the spirobiindane derivatives of the invention from the liquid phase, e.g., by spin coating or by printing methods, requires treatment of the formulations of the compounds of the invention. These formulations may be, for example, solutions, dispersions or emulsions. For this purpose, it may be preferable to use a mixture of two or more solvents. Suitable and preferred solvents are, for example, toluene, anisole, o-, m-or p-xylene, methyl benzoate, mesitylene, tetralin, o-dimethoxybenzene, tetrahydrofuran, methyltetrahydrofuran, tetrahydropyran, chlorobenzene, dioxane, phenoxytoluene, in particular 3-phenoxytoluene, (-) -fenchyl ketone, 1,2,3, 5-tetramethylbenzene, 1,2,4, 5-tetramethylbenzene, 1-methylnaphthalene, 2-methylbenzothiazole, 2-phenoxyethanol, 2-pyrrolidone, 3-methylanisole, 4-methylanisole, 3, 4-dimethylbenzene, 3, 5-dimethylbenzene, acetophenone, alpha-terpineol, benzothiazole, butyl benzoate, cumene, cyclohexanol, cyclohexanone, cyclohexylbenzene, decalin, dodecylbenzene, ethyl benzoate, indane, methyl benzoate, 1-methylpyrrolidone, p-cymene, phenetole, 1, 4-diisopropylbenzene, dibenzyl ether, diethylene glycol butyl methyl ether, triethylene glycol butyl methyl ether, diethylene glycol dibutyl ether, triethylene glycol dimethyl ether, diethylene glycol monobutyl ether, tripropylene glycol dimethyl ether, tetraethylene glycol dimethyl ether, 2-isopropylnaphthalene, pentylbenzene, hexylbenzene, heptylbenzene, octylbenzene, 1-bis (3, 4-dimethylphenyl) ethane, or mixtures of these solvents.
Preferably, the organic layer includes a hole injection layer, a hole transport layer, a hole blocking layer, a light emitting layer, an electron transport layer, an electron injection layer, or an electron blocking layer.
Further, the hole transporting layer, hole transporting layer or electron blocking layer comprises the spirobiindan derivative of the invention.
Still further, the electron blocking layer comprises the spirobiindan derivative of the invention.
The invention also provides a consumer electronic device comprising the organic electroluminescent element, wherein the consumer electronic device can be one of the following devices: flat panel displays, computer monitors, medical monitors, televisions, billboards, lights for interior or exterior illumination and/or signaling, heads-up displays, fully or partially transparent displays, flexible displays, laser printers, telephones, cellular telephones, tablet computers, tablet handsets, personal Digital Assistants (PDAs), wearable devices, laptop computers, digital cameras, video cameras, viewfinders, micro-displays with a diagonal of less than 2 inches, 3-D displays, virtual reality or augmented reality displays, vehicles, video walls comprising a plurality of displays tiled together, theatre or gym screens, phototherapy devices, and billboards. .
In addition, unless otherwise specified, all raw materials used in the present invention are commercially available, and any ranges recited in the present invention include any numerical value between the end values and any sub-range constituted by any numerical value between the end values or any numerical value between the end values.
The beneficial effects obtained by the invention are as follows:
the spirobiindan derivative shown in the formula (I) provided by the invention introduces spirobiindan with an orthogonal structure into triarylamine to improve the proportion of saturated groups in an organic material, reduce the refractive index of molecules, and improve the hole mobility and electron blocking performance of the material, so that the spirobiindan derivative can be applied to an organic layer of an organic electroluminescent element due to the hole mobility, electron blocking performance, good thermal stability and low refractive index. In particular, when the spirobiindan derivative represented by the formula (I) of the present invention is applied to an electron blocking layer or a hole transporting layer, an organic electroluminescent element having a lower driving voltage, higher efficiency and longer lifetime than conventional electron blocking materials can be produced, and further, a full-color display panel having improved performance and lifetime can be produced.
Drawings
Fig. 1 shows a schematic diagram of an organic light emitting device 100. The illustrations are not necessarily drawn to scale. The device 100 may include a substrate 101, an anode 102, a hole injection layer 103, a hole transport layer 104, an electron blocking layer 105, a light emitting layer 106, a hole blocking layer 107, an electron transport layer 108, an electron injection layer 109, a cathode 110, and a capping layer (CPL) 111. The device 100 may be fabricated by sequentially depositing the layers described.
Fig. 2 shows a schematic diagram of an organic light emitting device 200 with two light emitting layers. The device includes a substrate 201, an anode 202, a hole injection layer 203, a hole transport layer 204, a first emissive layer 205, an electron transport layer 206, a charge generation layer 207, a hole injection layer 208, a hole transport layer 209, a second emissive layer 210, an electron transport layer 211, an electron injection layer 212, and a cathode 213. The device 200 may be prepared by sequentially depositing the layers described. Because the most common OLED device has one light emitting layer, and device 200 has a first light emitting layer and a second light emitting layer, the light emitting peaks of the first and second light emitting layers may be overlapping or cross-overlapping or non-overlapping. In the corresponding layers of device 200, materials similar to those described with respect to device 100 may be used. Fig. 2 provides one example of how some layers may be added from the structure of device 100.
Detailed Description
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of description and to simplify the description, and are not indicative or implying that the apparatus or elements in question must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the present invention.
The experimental methods used in the following examples are conventional methods unless otherwise specified. The experimental materials and related equipment used in the examples below, unless otherwise specified, are all commercially available, and the percentages, such as the percentages without otherwise specified, are all mass percentages.
The following examples are examples of the test apparatus and method for testing the performance of OLED materials and devices as follows:
OLED element performance detection conditions:
luminance and chromaticity coordinates: photoresearch PR-715 was tested using a spectrum scanner;
current density and driving voltage: testing using a digital source table Keithley 2420;
power efficiency: NEWPORT 1931-C test was used.
Example 1
A process for the preparation of compound D116 comprising the steps of:
the first step: preparation of intermediate Int-1
Under the protection of nitrogen, 20.0mmol of sub-1, 22.0mmol of sub-2 and 80mL of dry THF are stirred and dissolved, the temperature is reduced to 0 ℃, 43.0mmol of 60% sodium hydride is added in portions, the mixture is stirred and reacted for 2 hours, the temperature is raised to reflux and reacted for 2 hours, the mixture is cooled to room temperature, 20mL of ice water is added dropwise, the organic phase is separated, the aqueous phase is extracted by ethyl acetate, the organic phase is collected, dried, filtered, the filtrate is concentrated to dryness under reduced pressure, and the compound Int-1 is obtained by separating and purifying by a silica gel column, and is a white solid with the yield of 92%.
And a second step of: preparation of intermediate Int-2
Under the protection of nitrogen, 20.0mmol of Int-1 is dissolved in 100mL of toluene, 20.0mL of trifluoroacetic acid is added, 70.0mmol of triethylsilane is slowly added dropwise, stirring reaction is carried out for 12 hours, 50mL of ice water is added, an organic phase is separated, the aqueous phase is extracted by toluene, the organic phase is collected, dried, filtered, and the filtrate is concentrated under reduced pressure to dryness, and is separated and purified by a silica gel column to obtain a compound Int-2, white solid, and the yield is 89%.
And a third step of: preparation of Compound D116
24.0mmol of intermediate Int-2, 20.0mmol of sub-3, 30.0mmol of sodium tert-butoxide and 0.02mmol of Pd under the protection of nitrogen 2 (dba) 3 The method comprises the steps of (1) reacting a catalyst, 0.04mmol Xantphos and 80mL of toluene under stirring at a temperature of 100 ℃ for 15 hours, cooling to room temperature, adding 50mL of water for dilution, extracting with toluene, collecting an organic phase, drying, filtering, concentrating the filtrate under reduced pressure, and separating and purifying with a silica gel column to obtain a compound D116;
X＝C(Me) 2 yellow solid, yield: 87%, MS (MALDI-TOF): m/z=580.2942 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：8.25(1H,s)；7.90～7.88(1H,d)；7.72～7.69(2H,m)；7.67～7.62(2H,m)；7.52～7.48(1H,m)；7.39～7.28(5H,m)；7.17～7.04(6H,m)；7.01～6.94(2H,m)；6.85～6.78(3H,m)；2.93～2.90(2H,m)；2.87～2.83(2H,m)；2.63～2.59(4H,m)；1.68(6H,s)。
X=ad, yellow solid, yield: 85%, MS (MALDI-TOF): m/z=672.3564 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：8.25(1H,s)；7.90～7.88(1H,d)；7.72～7.69(2H,m)；7.67～7.62(2H,m)；7.52～7.48(1H,m)；7.39～7.28(5H,m)；7.17～7.04(6H,m)；7.01～6.94(2H,m)；6.85～6.78(3H,m)；2.93～2.90(2H,m)；2.87～2.83(2H,m)；2.63～2.59(4H,m)；1.70～1.61(5H,m)；1.39～1.28(4H,m)；1.05～0.89(5H,m)。
X=fr, yellow solid, yield: 83%, MS (MALDI-TOF): m/z=702.3101 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：7.96～7.90(3H,m)；7.72～7.69(2H,m)；7.67～7.62(2H,m)；7.52～7.48(1H,m)；7.46～7.37(6H,m)；7.35～7.28(3H,m)；7.19～7.12(5H,m)；7.10～7.04(4H,m)；6.96～6.94(1H,m)；6.84～6.77(4H,m)；2.94～2.89(2H,m)；2.87～2.83(2H,m)；2.63～2.59(4H,m)。
X=nph, yellow solid, yield: 86%, MS (MALDI-TOF): m/z=629.2964 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：8.52(1H,s)；8.24～8.23(1H,d)；8.09～8.06(1H,m)；7.92～7.89(1H,m)；7.62～7.59(2H,m)；7.57～7.54(1H,m)；7.50～7.47(2H,m)；7.44～7.35(5H,m)；7.30～7.24(4H,m)；7.19～7.14(3H,m)；7.10～7.05(4H,m)；7.01～6.99(2H,d)；6.78(1H,s)；2.94～2.89(2H,m)；2.87～2.83(2H,m)；2.63～2.59(4H,m)。
Example 2
A process for the preparation of compound D191 comprising the steps of:
the first step: preparation of intermediate Int-3
Referring to the synthesis method of the first step of example 1, only the sub-1 of the first step of example 1 is replaced by sub-4, and the intermediate Int-3 is prepared, namely yellow solid, and the yield is 95%.
And a second step of: preparation of intermediate Int-4
Referring to the synthesis of the second step of example 1, only Int-1 of the second step of example 1 was replaced with Int-3 to prepare intermediate Int-4 as a yellow solid in 90% yield.
And a third step of: preparation of Compound D191
Under the protection of nitrogen, 24.0mmol of Int-4 is dissolved in 80mL of toluene, and then 20.0mmol of sub-5, 30.0mmol of anhydrous sodium tert-butoxide and 0.02mmol of Pd are added 2 (dba) 3 Catalyst, 0.04mmol of 10% tri-tert-butyl phosphine toluene solution, heating to 100 ℃ and stirring for reaction for 15 hours, cooling to room temperature, adding 50mL of water for dilution, extracting with toluene, collecting an organic phase, drying, filtering, concentrating the filtrate under reduced pressure, and separating and purifying with a silica gel column to obtain a compound D191;
x=o, yellow solid, yield: 84%, MS (MALDI-TOF): m/z=604.2578 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：7.86～7.84(1H,m)；7.75～7.90(4H,m)；7.75～7.69(4H,m)；7.67～7.57(3H,m)；7.54～7.48(3H,m)；7.41～7.32(5H,m)；7.17～7.13(1H,m)；7.10～7.05(3H,m)；6.98～6.96(1H,d)；3.18～3.13(4H,m)；2.71～2.65(4H,m)。
X=s, yellow solid, yield: 80%, MS (MALDI-TOF): m/z=620.2352 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：8.04(1H,s)；7.86～7.81(2H,m)；7.75～7.69(3H,m)；7.66～7.57(5H,m)；7.52～7.46(2H,m)；7.44～7.37(4H,m)；7.25～7.20(3H,m)；7.17～7.13(2H,m)；7.10～7.05(3H,m)；3.19～3.13(4H,m)；2.71～2.65(4H,m)。
X=nnap, yellow solid, yield: 83%, MS (MALDI-TOF): m/z=729.3283 [ m+h ]] + ； 1 HNMR(δ、CDCl 3 )：8.23(1H,s)；8.16(1H,s)；7.92～7.86(3H,m)；7.75～7.69(4H,m)；7.67～7.61(3H,m)；7.52～7.47(3H,m)；7.44～7.38(4H,m)；7.36～7.30(6H,m)；7.26～7.21(2H,m)；7.17～7.13(1H,m)；7.09～7.04(4H,m)；3.19～3.13(4H,m)；2.71～2.65(4H,m)。
Examples 3 to 126
Referring to the above-described similar synthetic method, the following compounds shown in table 1 were prepared:
TABLE 1
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In the above embodiments, each of X and T is independently selected from one of the following structures:
* -and- (x) represents a bond.
Example 126
As shown in fig. 1, an OLED element 100 of the present embodiment is a top emission light element, and includes a substrate 101, an anode 102 disposed on the substrate 101, a hole injection layer 103 disposed on the anode 102, a hole transport layer 104 disposed on the hole injection layer 103, an electron blocking layer 105 disposed on the hole transport layer 104, an organic light emitting layer 106 disposed on the electron blocking layer 105, a hole blocking layer 107 disposed on the organic light emitting layer 106, an electron transport layer 108 disposed on the hole blocking layer 107, an electron injection layer 109 disposed on the electron transport layer 108, and a cathode 110 disposed on the electron injection layer 109 and a capping layer 111 disposed on the cathode, wherein the method for manufacturing the OLED element excluding the hole blocking layer 107 includes the following steps:
1) The glass substrate coated with the ITO conductive layer is subjected to ultrasonic treatment in a cleaning agent for 30 minutes, rinsed in deionized water, subjected to ultrasonic treatment in an acetone/ethanol mixed solvent for 30 minutes, baked in a clean environment until completely dried, irradiated by an ultraviolet light cleaning machine for 10 minutes, and bombarded on the surface by a low-energy cation beam.
2) Placing the above ITO glass substrate in vacuum chamber, and vacuumizing to less than 1×10 -5 Pa, depositing metallic silver as an anode layer on the ITO film, the thickness of the deposited film beingContinuing to vapor deposit the compounds HI01 and HI02 as hole injection layers respectively, wherein HI02 is 3% of HI01 by mass, and the vapor deposition film thickness is +.>
3) Continuously evaporating compound HTM as hole transport layer on the hole injection layer to obtain an evaporating film with a thickness of
4) Continuing to vapor deposit the compound represented by the formula (I) of the present invention as an electron blocking layer on the hole transport layer, the vapor deposition film thickness being
5) Continuously evaporating compound RH015 as main material and RD015 as doping material on the electron blocking layer, RD015 being 5% of RH015 by mass, and evaporating to obtain organic light emitting layer as elementThe film thickness of the organic light-emitting layer is
6) Continuously evaporating a layer of LiQ and a compound ET028 on the organic light-emitting layer as an electron transport layer of the element, wherein the compound ET028 is 50% of the mass of the LiQ, and the evaporating film thickness is
7) Continuously evaporating a LiF layer on the electron transport layer to form an electron injection layer with an evaporating film thickness of
8) Evaporating metal magnesium and silver on the electron injection layer to form a transparent cathode layer of the element, wherein the mass ratio of magnesium to silver is 1:10, and the film thickness of the evaporated film is
9) Evaporating CPD layer as CPL layer of the device on the transparent cathode layer to obtain an evaporated film thickness ofThe OLED element provided by the invention is obtained.
The structure of the compound used in example 126 above was as follows:
example 127
An organic electroluminescent device 200, the structure of which is shown in fig. 2, comprises a substrate 201, an anode 202, a hole injection layer 203, a hole transport layer 204, a first light emitting layer 205, an electron transport layer 206, a charge generation layer 207, a hole injection layer 208, a hole transport layer 209, a second light emitting layer 210, an electron transport layer 211, an electron injection layer 212, and a cathode 213. Electroluminescent element 200 was prepared by a similar method as in example 126.
Comparative example 1
By following a procedure analogous to example 126 substituting the compound of formula (I) according to the invention in step 4) with H01, comparative element 1 is obtained;
the organic electroluminescent element prepared by the above process was subjected to the following performance test:
the driving voltage and current efficiency of the organic electroluminescent elements prepared in examples 126 and 127 and comparative example 1 described above and the lifetime of the elements were measured using a digital source meter and a luminance meter. Specifically, the luminance of the organic electroluminescent element was measured to reach 1000cd/m by increasing the voltage at a rate of 0.1V per second 2 The voltage at the time is the driving voltage, and the current density at the time is measured; the ratio of brightness to current density is the current efficiency; LT95% life test is as follows: using a luminance meter at 10000cd/m 2 The luminance decay of the organic electroluminescent element was measured to be 9500cd/m while maintaining a constant current at luminance 2 Time in hours. The data listed in table 2 are relative data compared to comparative element 1.
TABLE 2
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As can be seen from Table 2, the OLED device prepared from the compound of the present invention has a lower driving voltage than H01 under the same brightness, a significantly improved current efficiency up to as much as 1.25 times that of the comparative device, and a LT95% lifetime of 10000cd/m 2 The spirobiindan derivative of the invention has excellent performance under the initial brightness condition and the accelerated aging test, and is an electron blocking layer material with excellent performance.
While the invention has been described in detail in the foregoing general description and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (10)
1. A spirobiindan derivative is characterized in that the structural formula is shown in a formula (I):
wherein ring a represents a 5-membered carbocycle, a 5-membered heterocycle, a 6-membered carbocycle, a 6-membered heterocycle, or no ring a;
R 1 ～R 8 each independently selected from the group consisting of hydrogen, deuterium, substituted or unsubstituted C 1 -C 40 Alkyl, substituted or unsubstituted C 2 -C 40 Alkenyl, substituted or unsubstituted C 1 -C 40 Heteroalkyl, substituted or unsubstituted C 3 -C 40 Cycloalkyl, substituted or unsubstituted C 3 -C 40 Cycloalkenyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Arylamine group, substituted or unsubstituted C 2 -C 60 Heteroaryl group, R 1 And R is 2 、R 3 And R is 4 、R 5 And R is 6 、R 7 And R is 8 Optionally joined to form a substituted or unsubstituted ring;
R a 、R b each independently represents one or more to saturated substituents, each independently selected from the group consisting of hydrogen, deuterium, a halogen atom, a nitrile group, a substituted or unsubstituted C 1 -C 40 Alkyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 10 -C 60 Condensed ring aryl, substituted or unsubstituted C 6 -C 60 Arylamine group, substituted or unsubstituted C 2 -C 60 A heterocyclic aryl group, or a group of groups of formula (II), two or more adjacent R a 、R b Optionally joined or fused to form a substituted or unsubstituted ring; and at R a 、R b At least one of them is a group represented by the formula (II);
L 1 selected from single bonds, substituted or unsubstituted C 6 -C 60 Arylene, or substituted or unsubstituted C 2 -C 60 A group consisting of heteroarylenes;
m is an integer of 0 to 5;
y is an integer of 1 to 5;
Ar 1 、Ar 2 each independently selected from the group consisting of substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 10 -C 60 Condensed ring aryl, substituted or unsubstituted C 6 -C 60 Arylamine groups, or substituted or unsubstituted C 2 -C 60 A group consisting of heteroaryl groups;
* -representing the position of the bond.
2. The spirobiindan derivative according to claim 1, which is selected from the group consisting of the following structures:
wherein R is a 、R b 、R 1 ～R 8 、L 1 、m、Ar 1 、Ar 2 The meaning of (a) is as defined for formula (I);
L 2 selected from single bonds, substituted or unsubstituted C 6 -C 60 Arylene, or substituted or unsubstituted C 2 -C 60 A group consisting of heteroarylenes;
n is an integer of 0 to 5;
Ar 3 、Ar 4 each independently selected from the group consisting of substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 10 -C 60 Condensed ring aryl, substituted or unsubstituted C 6 -C 60 Arylamine groups, or substituted or unsubstituted C 2 -C 60 A heterocyclic aryl group.
3. The spirobiindan derivative according to claim 2, wherein R is 1 ～R 8 Each independently selected from the group consisting of hydrogen, deuterium, substituted or unsubstituted C 1 -C 40 Alkyl, substituted or unsubstituted C 3 -C 40 Cycloalkyl, substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 An arylamine group;
m, n are each 0, 1 or 2;
Ar 1 、Ar 2 、Ar 3 、Ar 4 each independently selected from the group consisting of substituted or unsubstituted C 6 -C 60 Aryl, substituted or unsubstituted C 6 -C 60 Arylamine groupA group of groups.
4. The spirobiindan derivative according to claim 2, wherein R is 1 ～R 8 Each independently selected from the group consisting of hydrogen, deuterium, methyl, ethyl, propyl, isopropyl, butyl, isobutyl, tert-butyl, pentyl, cyclopentyl, isopentyl, hexyl, cyclohexyl, cycloheptyl, substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted naphthyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted triphenylene, substituted or unsubstituted carbazolyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted dibenzofuranyl, substituted or unsubstituted dibenzothiophenyl;
Ar 1 、Ar 2 、Ar 3 、Ar 4 each independently selected from the group consisting of substituted or unsubstituted phenyl, substituted or unsubstituted biphenyl, substituted or unsubstituted terphenyl, substituted or unsubstituted tetrabenzoyl, substituted or unsubstituted naphthyl, substituted or unsubstituted phenanthryl, substituted or unsubstituted triphenylenyl, substituted or unsubstituted carbazolyl, substituted or unsubstituted fluorenyl, substituted or unsubstituted anthracenyl, substituted or unsubstituted fluoranthenyl, substituted or unsubstituted benzofuranyl, substituted or unsubstituted benzothienyl, substituted or unsubstituted dibenzofuranyl, or substituted or unsubstituted dibenzothiophenyl.
5. The spirobiindan derivative according to claim 2, wherein L is 1 、L 2 Each independently selected from a single bond or from the group consisting of groups III-1 to III-23:
wherein the dotted line represents the attachment site of the group.
6. Spirobiindan derivative according to any of claims 1-5, which is selected from compounds represented by the following formulas D100-D225:
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wherein, -X, -T, -are each independently selected from, -O, -S, -or one of the structures shown below:
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* -and- (x) represents a bond.
7. Use of the spirobiindan derivative according to any one of claims 1-6 for the preparation of an organic electroluminescent element.
8. An organic electroluminescent element, characterized in that it comprises: a first electrode, a second electrode, a capping layer, and one or more organic layers disposed between the first electrode and the second electrode; the material of at least one of the organic layer or the capping layer comprises the spirobiindan derivative as claimed in any one of claims 1-6.
9. The organic electroluminescent element according to claim 8, wherein the organic layer comprises a hole injection layer, a hole transport layer, a hole blocking layer, a light emitting layer, an electron transport layer, an electron injection layer, or an electron blocking layer;
the hole transporting layer or electron blocking layer comprises the spirobiindan derivative of any one of claims 1-6.
10. A consumer electronic device characterized in that it comprises the organic electroluminescent element of claim 8.
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