Regioselective Formation of Tetrahydroselenophenes via 5-<i>exo</i>-<i>dig</i>-Cyclization of 1-Butylseleno-4-alkynes
作者:Rafaela M. Gai、Ricardo F. Schumacher、Davi F. Back、Gilson Zeni
DOI:10.1021/ol302919b
日期:2012.12.7
Results on the synthesis of tetrahydroselenophene derivatives from 1-butylseleno-4-alkynes by electrophilic cyclization using iodine as the electrophilic source are presented. This methodology was carried out via a simple process under mild reaction conditions providing the cyclized products in high yields. Electrophilic sources, such as PhSeBr, CuCl2, and CuBr2, were also used in this study. The