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
CARBAZOLE-BASED COMPOUND AND ORGANIC LIGHT EMITTING DIODE COMPRISING SAME
申请人:LG CHEM, LTD.
公开号:US20210013425A1
公开(公告)日:2021-01-14
Provided is a compound of Chemical Formula 1:
wherein:
X1 is N or CR, X2 is N or CR′, and X3 is N or CR″;
two or more of X1 to X3 are N;
R, R′, R″ and R1 each independently is hydrogen or deuterium, a is an integer of 0 to 9, and when a is 2 or greater, the R1s are the same as or different from each other
Ar1 and Ar2 each independently is a substituted or unsubstituted aryl group;
L is a direct bond or a substituted or unsubstituted arylene group, n is an integer of 1 to 3, and when n is 2 or 3, the Ls are the same as or different from each other; and
R11 to R18 each independently is hydrogen, deuterium, a nitrile group, or a substituted or unsubstituted: alkyl group, cycloalkyl group, alkoxy group, aryloxy group, aryl group, or heteroaryl group, or bond to adjacent groups to form a substituted or unsubstituted ring,
and an organic light emitting device comprising same.
COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
申请人:LG CHEM, LTD.
公开号:US20220029107A1
公开(公告)日:2022-01-27
A compound of Chemical Formula 1, and an organic light emitting device including the same.