TANDEM ALKYNE INSERTION AND ALLYL SULFONIUM YLIDE REARRANGEMENT OF γ,δ-ALKYNYL-α'-DIAZOKETONES

Article abstract of DOI:10.1016/0040-4039(92)88041-3

Acetylenic α-diazaketones 1, when treated with catalytic rhodium carboxylate dimer and diallylsulfide (1.1 equiv), undergo sequential alkyne insertion/ylide formation/sigmatropic rearrangements to give γ-allylthio cyclic enones.This transformation was use