Rhodium(III)-Catalyzed Oxidative Coupling of 5-Aryl-1H-pyrazoles with Alkynes and Acrylates

[摘要]：[RhCp*Cl(2)](2)-catalyzed oxidative coupling of 5-aryl-1H-pyrazoles with alkynes and acrylates has been achieved using Cu(OAc)(2) as an oxidant. Coupling with alkynes afforded six-membered azacycles as a result of C-C and C-N coupling. Coupling with acrylates followed a process of diolefination and a subsequent aza-Michael cyclization.

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