Influence of functional substitution of allyl halides on their ni(co)4 promoted carbonylative cycloaddition with acetylenes
作者:Francisco Camps、Josep M. Moreto、Lluis Pages
DOI:10.1016/s0040-4020(01)92256-2
日期:1992.4
were shown to favour competing side reactions such as allyl self-coupling. However, only cyclopentenones were obtained from either centrally or terminally substituted silylallyl halides. Substitution at both ends of the allyl moiety led to the formation of 4,5-disubstituted cyclopentenones. Important mechanistic information could be achieved from determination of the relative stereochemistry in these