Reaction of [(Z)-1-bromo-1-alkenyl]dialkylboranes with N-halogeno compound in THF–DMF: a novel synthesis of 1,2-disubstituted (E)-vinyl bromides
作者:Masayuki Hoshi、Kazuya Shirakawa
DOI:10.1016/s0040-4039(00)00213-6
日期:2000.4
DMF-induced reaction of [(Z)-1-bromo-1-alkenyl]dialkylboranes with an N-halogeno compound results in 1,2-migration of an alkyl group from the dialkylboryl group to the alpha-carbon atom without elimination of the bromine atom, followed by beta-elimination to provide 1,2-disubstituted (E)-vinyl bromides stereoselectively in good yields. (C) 2000 Elsevier Science Ltd. All rights reserved.