On the utility of α-heteroatom substituted orthoesters in the Johnson Claisen rearrangement

Abstract α-Heteroatom substituted orthoesters were prepared and found to undergo the Johnson Claisen rearrangement with a variety of allylic alcohols giving γ,δ-unsaturated α-heteroatom substituted esters in fair to excellent yields. The diastereoselectivity of the process was examined.