Syntheses of some 2-substituted cyclohexenones by Michael-type reactions on tetrahydropyran-2′-yloxy-cyclohexenes
Abstract
A tetrahydropyran-2-yloxy-group activates a double bond in a cyclohexene or cyclohexadiene system in a similar way to an amino-group, and thermal reactions with αβ-unsaturated carbonyl derivatives result in good yields of 2-substituted cyclohexanones or cyclohexenones.