Internal Oxidant-Triggered Aerobic Oxygenation and Cyclization of Indoles under Copper Catalysis
作者:Huawen Huang、Jinhui Cai、Xiaochen Ji、Fuhong Xiao、Ya Chen、Guo-Jun Deng
DOI:10.1002/anie.201508076
日期:2016.1.4
A concise synthesis of pyrazolo[1,5‐a]indole derivatives by copper‐catalyzed aerobic oxygenation and cyclization of indoles with oxime acetates is described. This protocol represents an elegant example of N‐1, C‐2, and C‐3 tri‐functionalization of indoles in one‐pot. Mechanistic studies indicate the reaction proceeds through a radical procedure. Oximes as an internal oxidant have been demonstrated
申请人:PnH tech (주)피엔에이치테크(120100135796) Corp. No ▼ 131111-0237931BRN ▼129-86-36614
公开号:KR20150131700A
公开(公告)日:2015-11-25
본 발명은 유기전계발광소자에 채용되는 유기발광 화합물에 관한 것으로서, 하기 [화학식 1]로 표시되는 것을 특징으로 하고, 이를 정공수송 가능층 또는 발광층 내의 인광 호스트 화합물로 채용하는 경우 구동전압, 휘도 및 장수명 등의 발광특성이 우수한 유기전계발광소자를 구현할 수 있다. [화학식 1] [화학식 2]
A new, selective method for the synthesis of 4-haloisoquinolines and 3-haloindoles is presented by the halopalladation cyclizations of alkynes with azides. In the presence of PdX2 (X = Br, Cl) and halide sources, a variety of 2-alkynylbenzylazides or 2-alkynyl aryl azides smoothly underwent the halopalladation cyclization reaction to afford the corresponding 3-substituted 4-haloisoquinolines and