Stereoselective preparation of conjugated dienoates and dienamides. New synthesis of pellitorine and pipercide
作者:Robert Bloch、Dominique Hassan-Gonzales
DOI:10.1016/s0040-4020(01)88048-0
日期:1986.1
E)-conjugated dienoates and dienamides of high stereoisomeric purities are prepared viathermal SO2 extrusion from cis-2,5-disubstituted-2,5-dihydrothiofene-1,1-dioxides generated by a retro Diels-Alder reaction. Applications of this method to the syntheses of two insecticidal natural dienamides : pellitorine and pipercide and of methyl tetradeca-2E,4,5-trienoate, an insect sex pheromone, are described.