The ‘Hirao reduction’ revisited: a procedure for the synthesis of terminal vinyl bromides by the reduction of 1,1-dibromoalkenes
作者:Sahar Abbas、Christopher J Hayes、Stephen Worden
DOI:10.1016/s0040-4039(00)00353-1
日期:2000.4
A convenient procedure for the synthesis of vinyl bromides is described, which involves the selective reduction of the corresponding 1,1-dibromoalkenes with dimethylphosphite and triethylamine. The 1,1-dibromoalkenes are obtained in excellent yields from the corresponding aldehydes via olefination with carbon tetrabromide and triphenylphosphine.
描述了一种方便的合成乙烯基溴的方法,该方法包括用亚磷酸二甲酯和三乙胺选择性还原相应的1,1-二溴烯烃。通过与四溴化碳和三苯基膦的烯烃反应,由相应的醛以优异的收率得到1,1-二溴烯烃。