A Novel Radical Cyclization Approach to Thieno-Fused Heterocycles
作者:Prabal P. Singh、Ashok K. Yadav、Hiriyakkanavar Ila、Hiriyakkanavar Junjappa
DOI:10.1002/ejoc.201100516
日期:2011.7
efficient synthesis of novel aryl/heteroaryl-substituted thieno-fused heterocycles, that is, thieno[2,3-b]thiophenes, thieno[2,3-b]indoles, and pyrazolo[3,2-c]thiophenes, involving radical-mediated cyclization of 2-(2-bromoheteroaryl)-3-methylthio-3-aryl/heteroaryl acrylonitriles has been reported.