LEE, GARY M.;PARVEZ, M.;WEINREB, STEVEN M., TETRAHEDRON, 44,(1988) N 15, C. 4671-4678
作者:LEE, GARY M.、PARVEZ, M.、WEINREB, STEVEN M.
DOI:——
日期:——
Intramolecular metal catalyzed kharasch cyclizations of olefinic α-halo esters and acids
作者:Gary M. Lee、M. Parvez、Steven M. Weinreb
DOI:10.1016/s0040-4020(01)86169-x
日期:1988.1
Functionalized carbocyclic compounds are produced by intramolecular Kharasch radical cyclization reactions catalyzed by various transition metal complexes. Several unsaturated mono-α-haloesters and acids can be efficiently transformed to γ-halocarboxyl and γ-lactone carbocycles via exo closure of a 5-hexenyl type radical intermediate. The cyclization methodology is useful for synthesis of both fused and bridged