An efficient synthesis of indolo­[2,1-a]­benzazepinones through rhodium-catalyzed cascade reactions of 2-arylindoles with allyl alcohols has been developed. This work expands the scope of products that are available through C–H activation/intramolecular annulation reactions of 2-arylindoles in organic synthesis.

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A [3+3] annulation of 3-aryl-3-hydroxyisoindolinones for the efficient synthesis of isoindolinone-derived spiroisochromenes is reported. In this Rh(III)-catalyzed spirocyclization reaction, vinylene carbonate is used as the coupling partner and acts as...