Assembly of indolo[1,2-c]quinazolines using ZnBr2-promoted domino hydroamination–cyclization
摘要:
An efficient protocol to generate indolo[1,2-c]quinazolines from acyclic alkyne substrates by ZnBr2-promated domino hydroamination-cyclization has been established. The dichotomous properties of zinc salts involving alkynophilicity and oxophilicity assure a one-pot formation of five- and six-membered nitrogen-containing rings in the skeleton. (C) 2013 Elsevier Ltd. All rights reserved.
Copper-Catalyzed Cascade Synthesis of 1<i>H</i>-Indolo[1,2-<i>c</i>]quinazoline Derivatives
作者:Hao Zhang、Yibao Jin、Hongxia Liu、Yuyang Jiang、Hua Fu
DOI:10.1002/ejoc.201200953
日期:2012.12
A simple, efficient and practical approach to 1H-indolo[1,2-c]quinazolinederivatives has been developed that uses inexpensive and readily-available catalyst and substrates. The method should provide a new strategy for N-fused heterocycles and will show wide application in organic chemistry and medicinal chemistry.