Preparation and stereoselective additions of highly substituted cyclic allylzinc reagents a zinc-ene cyclization
作者:Nicolas Millot、Paul Knochel
DOI:10.1016/s0040-4039(99)01689-5
日期:1999.10
Highly substituted cyclic allylzinc reagents 2 have been prepared by fragmentation of stericallyhindered homoallylic zinc alcoholates 1. Their reactions with aldehydes proceed under mild conditions and are highly stereoselective (64–86 %; Examples of acylation with benzonitrile and zinc-ene cyclization giving new spirobicyclic zinc reagents are also reported.