Abstract

AbstractSpirooxindoles bearing a 1‐azabicyclo[5.3.0]decane moiety were synthesized in one step via direct functionalization of the azepane without a transition metal or oxidants. This is an efficient process for the synthesis of fused 7/5‐heterobicyclic systems in one step. Furthermore, cycloaddition of the in‐situ‐generated azomethine ylide only proceeded for alkenyl sulfone dipolarophiles.

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