Regio- and stereoselective synthesis of 1-(1-halovinyl)-1H-indoles from 1-ethynyl-1H-indoles with in situ generated HX
作者:Akihiro H. Sato、Kazuhiro Ohashi、Kouhei Ito、Tetsuo Iwasawa
DOI:10.1016/j.tetlet.2013.03.107
日期:2013.5
A facile approach to 1-(1-halovinyl)-1H-indoles from readily accessible 1-ethynyl-1H-indoles with in situ generated HX is described. The simple protocol enables a regio- and stereoselective hydrohalogenation to the triple bonds in gram-scale, and provides a general entry for novel N-alkenylindole derivatives. (C) 2013 Elsevier Ltd. All rights reserved.