- Construction of Tricyclic Nitrogen Heterocycles by a Gold(I)-Catalyzed Cascade Cyclization of Allenynes and Application to Polycyclic π-Electron Systems
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A novel approach to the direct construction of tricyclic nitrogen heterocycles based on gold-catalyzed cascade cyclization of aminoallenynes is described. The expected biscyclization reaction of hydroxyisobutyryl-protected aminoallenynes was efficiently promoted by a catalytic amount of BrettPhosAuNTf2 in the presence of iPrOH to produce 1,2-dihydrobenzo[cd]indole derivatives in good yields. When the reaction was combined with Friedel–Crafts acylation or palladium-catalyzed N-arylation, the resulting tricyclic products were efficiently converted into nitrogen-containing polycyclic aromatic compounds (N-PACs) with highly conjugated π-electron systems. A newly obtained hexacyclic indolium salt showed characteristic concentration-dependent absorption and emission properties.
- Arichi, Norihito,Fukazawa, Aiko,Ikeuchi, Takaya,Inuki, Shinsuke,Komatsu, Hiroki,Ohno, Hiroaki,Oishi, Shinya,Tsuno, Hitomi,Yasui, Kosuke
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p. 27019 - 27025
(2021/11/27)
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- Heterocyclic compound and organic light emitting device comprising same
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Are a heterocyclic compound of Formula 1 and an organic light emitting device including the same. — AOMARKENCODELTX0AO 1 For the substituent groups of Formula 1, reference is made to the detailed description. (by machine translation)
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Paragraph 0192; 0193; 0203; 0204
(2020/08/01)
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- Heterocyclic compound and organic light-emitting device including the same
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A heterocyclic compound represented by Formula 1 below and an organic light-emitting device including the heterocyclic compound are provided:
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Page/Page column 87; 89
(2017/08/20)
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- Compound and organic light emitting device comprising same
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In the present invention, provided are a novel organic light-emitting compound and an organic light-emitting diode, which includes the novel organic light-emitting compound and high efficiency, low voltage, high brightness and longevity. For this, disclosed are a compound represented by chemical formula 1 or chemical formula 2 and an organic light-emitting diode including the same. In the patent specification, chemical formula 1 and chemical formula 2 are described in the detailed description of the invention.(AA) Second electrode(EE) Hole transport layer(FF) Hole injection layer(GG) Frist electrode(BB) Electron injection layer(CC) Electron transport layer(DD) Light emitting layerCOPYRIGHT KIPO 2015
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Paragraph 0211; 0220; 0221
(2016/10/10)
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- Heterocyclic compound and organic light emitting device comprising same
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Discloses are a heterocyclic compound of chemical formula 1 and an organic light emitting device comprising the same. See a detailed description for a substituent in chemical formula 1. According to the present invention, provided is an organic light emitting device having high efficiency, a low voltage, high brightness, and a long lifespan.
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Paragraph 0204; 0208; 0217; 0218
(2016/10/24)
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- Heterocyclic compound and organic light emitting device comprising same
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Provided is a material which has excellent electrical properties, high electrical transport ability, and light emissivity, has high glass transition temperature, and prevents crystallization. Disclosed are a heterocyclic compound of chemical formula 1, and an organic light emitting device including the same. The content of substituents of chemical formula 1 refers to the detailed description.(AA) Second electrode(BB) Electron injection layer(CC) Electron transfer layer(DD) Light emitting layer(EE) Hole transfer layer(FF) Hole injection layer(GG) First electrodeCOPYRIGHT KIPO 2015
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Paragraph 0194; 0203; 0204
(2016/10/09)
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- Synthesis of Carbazole, Acridine, Phenazine, 4H-Benzo[def]carbazole and Their Derivatives by Thermal Cyclization Reaction of Aromatic Amines
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A variety of nitrogen-containing heterocycles were synthesized by passing vapors of aromatic amines over calcium oxide at 450-650 °C under nitrogen carrier gas. Reaction of 2-aminobiphenyl 3a at 560 °C gave carbazole 4 in 80% yield. Reaction of 2,2′-diaminobiphenyl 3b afforded a mixture of carbazole 4 and 4-aminocarbozole 6b. In the case of 2-amino-2′ -nitrobiphenyl 3c, benzo[c]cinnoline 7 was obtained along with carbazole 4. Reaction of 2-amino-2′-methoxybiphenyl 3d gave four products of carbazole 4, 4-hydroxycarbazole 6e, phenanthridine 8 and dibenzofuran 9. Reaction of 2-aminodiphenylmethane 5a afforded acridine 10. In the case of 2-aminobenzophenone 5b, acridone 11 was obtained as a major product. Reaction of 2-aminobenzhydrol 5c gave acridine 10. When 2-aminodiphenylamine 5d was reacted, phenazine 12 was obtained in good yield. In contrast, reaction of 2-aminodiphenyl ether 5e produced only 2-hydroxydiphenylamine 13. Reaction of 4-aminophenanthrene 14 produced 4H-benzo[def]carbazole 15 in 61% yield.
- Horaguchi, Takaaki,Oyanagi, Takako,Creencia, Evelyn Cuevas,Tanemura, Kiyoshi,Suzuki, Tsuneo
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