Bis- and tris- (di) benzocarbazole-based materials as hole transport materials for organic light emitting devices
申请人:——
公开号:US20030186077A1
公开(公告)日:2003-10-02
Compounds according to Formula I
1
wherein one or two of Ar1-4 are present, R is selected from the group consisting of H, CH
3
, OCH
3
or halogen, and Ar is an aryl bridge. Such compounds are suitable for use in organic light-emitting devices. These compounds exhibit both hole transport and emissive properties and have a high glass transition temperature and thermal stability.
[EN] BIS- AND TRIS-(DI)BENZOCARBAZOLE-BASED MATERIALS AS HOLE TRANSPORT MATERIALS FOR ORGANIC LIGHT EMITTING DEVICES<br/>[FR] MATIERES A BASE DE BIS- ET TRIS-(DI)BENZOCARBAZOLE EN TANT QUE MATIERES POUR LE TRANSPORT DE TROUS DESTINEES A DES DISPOSITIFS ORGANIQUES D'EMISSION DE LUMIERES
申请人:CANON KK
公开号:WO2003059014A1
公开(公告)日:2003-07-17
Compounds according to formula I or formula II
Visible-Light-Induced Oxidation/[3 + 2] Cycloaddition/Oxidative Aromatization to Construct Benzo[<i>a</i>]carbazoles from 1,2,3,4-Tetrahydronaphthalene and Arylhydrazine Hydrochlorides
作者:Jiaxuan Shen、Nannan Li、Yanjiang Yu、Chunhua Ma
DOI:10.1021/acs.orglett.9b02939
日期:2019.9.6
An efficient synthesis of benzo[a]carbazoles via visible-light-induced tandem oxidation/[3 + 2] cycloaddition/oxidative aromatization reactions was reported. The benzylic C(sp3)-H of tetrahydronaphthalene was activated through visible-light photoredox catalyst with oxygen as the clean oxidant under mild reaction conditions. This protocol proceeds efficiently with broad substrate scope, and the mechanism