Bicycloannulation leading to the tricyclo[4.4.0.01,5]decane framework and its congeners
Abstract
Reactions of the kinetic enolates of 1-acetylcyclohexenes with α-bromo-α,β-unsaturated esters afford 5-methoxycarbonyltricyclo[4.4.0.01,5]decan-2-ones in one pot syntheses via successive Michael–Michael-substitution reactions.