Copper-Catalyzed Aerobic Oxidative Cyclization of Hydrazones to Pyrazolidinones

[摘要]：N-Aryl hydrazones participate, under copper catalysis, in a [3+2] cycloaddition/aerobic oxidation cascade reaction to form pyrazolidinones. The starting hydrazones were prepared by three-component coupling of allylic amines, acyl chlorides, and aryl diazonium salts.

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