Hole-transfer catalyzed reaction: One-electron oxidation as a strategy for the selective cyclopropanation of π bonds
作者:Gholam A. Mirafzal、Albena M. Lozeva、Jeffrey A. Olson
DOI:10.1016/s0040-4039(98)02163-7
日期:1998.12
The cyclopropanation of alkenes, dienes and trienes with ethyl diazoacetate catalyzed by tris(4-bromophenyl)aminium hexachloroantimonate have been studied. The efficiency and selectivity of cyclopropanation is based solely upon, and is highly sensitive to, the ease of ionization of π bonds in the substrate. Simple double bonds such as norbornene and 1-octene are not amenable to cyclopropanation via