Catalytic [2,3]-sigmatropic rearrangement of sulfonium ylides derived from azoalkenes: non-carbenoid Doyle–Kirmse reaction

The Sc( iii )-catalyzed [2,3]-sigmatropic rearrangement of sulfonium ylides derived from azoalkenes has been established, which represents the first non-carbenoid variant of the Doyle–Kirmse reaction.