Nucleo-Palladation-Triggering Alkene Functionalization: A Route to γ-Lactones
摘要:
An unprecedented strategy for the highly effective synthesis of gamma-lactones from homoallylic alcohols was achieved by palladium catalysis in one step. The protocol affords aryl, alkyl, and spiro gamma-lactones directly from readily available "homoallylic alcohols in good yields with excellent functional group tolerance and high chemoselectivity under mild conditions.
A new radical cyclization method for the formation of C(sp3)–C(sp3) and C–O bonds via MnO2-promoted alkene carboesterification with anhydrides is developed.
An unprecedented strategy for the highly effective synthesis of gamma-lactones from homoallylic alcohols was achieved by palladium catalysis in one step. The protocol affords aryl, alkyl, and spiro gamma-lactones directly from readily available "homoallylic alcohols in good yields with excellent functional group tolerance and high chemoselectivity under mild conditions.
Sindelar,K. et al., Collection of Czechoslovak Chemical Communications, 1972, vol. 37, p. 1195 - 1206