Reactivity of (3-chloro-2-methylenecycloalkyl)pallladium chloride dimers: a palladium mediated ring homologation--functionalization approach to the AR-7-7 skeleton of colchicine
作者:William A. onaldson、Daniel J. tepuszek、James A. ruetzmacher
DOI:10.1016/s0040-4020(01)82008-1
日期:1990.1
A palladiummediated ring homologation--functionalization approach to the Ar-7-7 tricyclic skeleton of colchicine from 1-arylcyclohexenes is described. This methodology involves the chloropalladation of 1-aryl-7-methylenebicyclo[4.1.0]heptanes to afford aryl substituted (3-chloro-2-methylenecycloheptyl)palladiumchloride dimers. Reaction of the π-allyl complexes with one equivalent of malonate anion