ASYMMETRIC 1,4-ADDITIONS TO γ-MENTHYLOXYBUTENOLIDES. (part II) ENANTIOSELECTIVE SYNTHESIS OF LIGNAN TYPE COMPOUNDS.

Article abstract of DOI:10.1016/S0957-4166(00)80529-7

Addition of dithianes, derived from alkyl- and aryl-aldehydes, to (5R)-menthyloxy-2<5H>-furanone followed by quenching with substituted benzylhalides or a benzaldehyde gives enantiomerically pure lignan type compounds in good yields.