ASYMMETRIC WITTIG SIGMATROPIC REARRANGEMENT INVOLVING A CHIRAL AZAENOLATE AS THE MIGRATING TERMINUS. A SIMPLE SYNTHESIS OF (+)-VERRUCARINOLACTONE

Article abstract of DOI:10.1016/S0040-4039(01)81746-9

The diastereo- and/or enantioselection are described in the title rearrangement of the chiral 2-(2-alkenyloxy)methyl 2-oxazolines which eventually provides optically active α-hydroxy γ,δ-unsaturated esters and (+)-verrucarinolactone.