Stereoselective synthesis of (E)-chloroenynes or (E,E)-chlorodienes starting from a stereoisomeric mixture of 1,2-dichloroethylenes
作者:Mouâd Alami、Jean-François Peyrat、Jean-Daniel Brion
DOI:10.1016/s0040-4039(02)00412-4
日期:2002.4
Under palladium or nickel catalysis. a stereomeric mixture 1:1 of (Z) and (E)-1,2-dichloroethylene readily reacts with 1-alkynes. vinyl alanes or vinyl boranes to afford selectively the corresponding (E)-coupling product in good to excellent isolated yields. The selectivity of this coupling reaction is discussed. (C) 2002 Elsevier Science Ltd. All rights reserved.