The Migration of Double Bond under the Neutral Conditions. The Transformation of α-Alkylidene Cyclic Carbonyl Compounds to α,β-Unsaturated Cyclic Carbonyl Compounds

Abstract The transformation of α-alkylidene cyclic carbonyl compounds to α,β-unsaturated cyclic carbonyl compounds was achieved. In the presence of catalytic amount of triethylsilane, tris(triphenylphosphine)rhodium chloride was found to affect the migration of double bonds. Because of the neutral nature of reaction medium, the reaction proceeded in a clean manner without side reactions.