Directive effects in hydroborations of 1-(trialkylsilyl)-1,3-diynes. Syntheses of (Z)-enynes and α-ketoacetylenes
作者:Elain C. Stracker、William Leong、Joseph A. Miller、Timothy M. Shoup、George Zweifel
DOI:10.1016/s0040-4039(01)89001-8
日期:1989.1
Chemo- and regioselective hydroborations of 1-(dimethylthexylsilyl)-1,3-diynes with dicyclohexylborane or with [bis(1,2-dimethylpropyl)borane] furnishes organoboranes which afford on protonation (Z)-enynes and on oxidation alkynyl ketones.