The ester dienolate [2,3]-Wittig rearrangement. Diastereoselective synthesis of 2,3-dialkenyl-substituted 2-hydroxy-γ-lactones

Article abstract of DOI:10.1016/S0040-4020(99)00019-8

The ester dienolate [2,3]-Wittig rearrangement proceeds with high yield and anti/syn diastereoselection to afford 3-alkoxycarbonyl-3-hydroxy- substituted 1,5-hexadienes. No donor solvent or metal salt additive was necessary to trigger the rearrangement. T