Stereocontrolled Approach to Bromofluoroalkenes and Their Use for the Synthesis of Tri- and Tetrasubstituted Fluoroalkenes
作者:Grégory Landelle、Pier Alexandre Champagne、Xavier Barbeau、Jean-François Paquin
DOI:10.1021/ol8027412
日期:2009.2.5
An addition/elimination reaction of organolithium reagents to silylated beta,beta-difluorostyrene derivatives followed by a bromination/desilicobromination reaction provides a simple and effective synthetic approach to a wide range of bromofluoroalkenes (up to >97/3). In addition, the bromofluoroalkenes can be used in Pd-catalyzed transformations giving access to both tri- and tetrasubstituted fluoroalkenes.