Regioselectivity and the role of olefin co-ordination in rhodium(I)-catalysed rearrangement of vinylcyclopropanes
Abstract
Rearrangement of syn- and anti-7-vinylbicyclo-[4.1.0]heptanes in the presence of di-µ-chloro-tetra-carbonyldirhodium(I) exhibits kinetic behaviour and product selectivity which provide good evidence for initial co-ordination of the vinyl group and stereospecific cis-β-hydride elimination from a subsequent metallocyclic intermediate.