Synthesis of 2,3,3a,4,5,6-Hexahydrobenzo[b]thiophene-3a-carbaldehydes via a Tandem Reaction of Cyclic β-Thiocyanatoenals with Electron-Deficient Alkenes Triggered by Fluoride
作者:Min Zhang、Yuefa Gong
DOI:10.1002/jhet.2115
日期:2015.3
New hexahydrobenzo[b]thiophene derivatives 3 were conveniently synthesized by a fluoride‐promoted tandemreaction between cyclic β‐thiocyanatoenals 1 and terminal electron‐deficient alkenes 2 in low to moderate yield. The reaction was initiated by γ‐deprotonation and followed by the Michael addition and nucleophilic attack on sulfur center.