ChemInform Abstract: Aza‐[4 + 3] and Aza‐[3 + 2] Annulations for Synthesis of Dihydroazepines and Dihydropyrroles from Alkynes, Sulfonyl Azides, and 1,3‐Dienes.

Abstract

AbstractThe reaction of triazole (I) with dienes (II) and (VI) in the presence of rhodium(II) octanoate as catalyst leads to dihydropyrroles (III) and (VII), resp., whilst the Rh2((S)‐PTAD)4‐catalyzed reaction affords dihydroazepines (V).