Silver- and Gold-Mediated Domino Transformation: A Strategy for Synthesizing Benzo[<i>e</i>]indolo[1,2-<i>a</i>]pyrrolo/pyrido[2,1-<i>c</i>][1,4]diazepine-3,9-diones

We reported a strategy for the synthesis of fused heterocyclic compounds benzo[e]indolo[1,2-a]pyrrolo/pyrido[2,1-c][1,4]diazepine-3,9-diones via an AgSbF6/gold-complex catalyzed one-pot cascade transformation. The strategy is tolerant of a broad range of substrates and affords a series of intriguing fused diazepinedione heterocycles.