RADICAL CYCLISATIONS ONTO 2(5H)-FURANONE AND MALEATE ELECTROPHORES LEADING TO SPIRO- AND LINEAR-FUSED γ-LACTONE RING SYSTEMS

Article abstract of DOI:10.1016/S0040-4039(00)82137-1

Radical cyclisations involving α-acetal methyl centres and 2(5H)-furanone and maleate electrophores allow the facile syntheses of spiro- and linear-fused γ-lactone ring systems e.g. (6), (10), (14), and (19), found in the ginkgolides.