PHOSPHOR- UND SCHWEFELSUBSTITUERTE ALLENE - IV. EINE EINFACHE SYNTHESE VON 2FURANONEN AND β-METHYLEN-γ-BUTYROLACTONEN DURCH ADDITION VON MALONSAEUREESTER AN ALLENSULFOXIDE

Article abstract of DOI:10.1016/S0040-4039(00)84312-9

Sodium malonates add readily to allenic sulfoxides; the adducts - after being protonated or alkylated - can be induced to undergo an allylic rearrangement, which is followed by cyclization, to give unsaturated γ-butyrolactones.