Hydroboration of ferrocenylalkenes: mechanistic and synthetic aspects
Abstract
Several ferrocenylalkenes (FcCRCH2, FcCHCHR, FcCRCHR, and FcCHCHAr) have been subjected to hydroboration–oxidation. The results show that the regioselectivity of the reaction is governed by both steric and electronic factors. Since the ferrocenyl group is particularly effective at the β-position, hydroboration–oxidation represents a convenient and general route to the preparation of 2-ferrocenylalkanols.