Combined DirectedorthoMetalation - Grubbs Metathesis Tactics. Synthesis of Benzazepine, Benzazocine, and Benzannulated 7-, 8-, 9-, and 15-Membered Ring Sulfonamide Heterocycles

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Abstract
The rapid construction of diverse benzannulated heterocyclic systems 7, 8, 12a-c, 15a-b, and 21 using Directed ortho Metalation - Ring Closure Metathesis sequences is reported.