Dilithiated (E)-N-isobutyl-4-tosyl-2-butenamide: An allyl sulfone dianion for the regiospecific γ-functionalization of crotonamide dianion
作者:Francisco Caturla、Carmen Nájera
DOI:10.1016/0040-4039(96)00936-7
日期:1996.7
stereoselectively at the γ-position to afford γ-substituted (E)-N-isobutyl-4-tosyl-2-butenamides 7. Desulfonylation of compounds 7 occurs stereoselectively to provide (E)-β,γ-unsaturated amides 9. This methodology has been applied to the synthesis of dienamides such as naturallyoccurring N-isobutyl-(2E,4E)-decadienamide (pellitorine).