An Atom-Economic Route to Thiophenes and 2,2′-Bithiophenes by Intramolecular Transannulation of <i>gem</i>-Dialkylthio Enynes
作者:Guichun Fang、Jichun Li、Yeming Wang、Mingyu Gou、Qun Liu、Xingqi Li、Xihe Bi
DOI:10.1021/ol4017854
日期:2013.8.16
An atom-economic route to thiophenes and bithiophenes has been developed starting from the readily available gem-dialkylthio enynes. A range of functionalized thiophenes and bithiophenes, bearing a pendent vinylthio group, were obtained in good to high yields under mild conditions.