Copper-catalyzed aerobic oxidative cyclization of hydrazones to pyrazolidinones

Abstract : 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. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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Aurélie dos Santos, Laurent El Kaim, Laurence Grimaud, Caroline Ronsseray. Copper-catalyzed aerobic oxidative cyclization of hydrazones to pyrazolidinones. European Journal of Organic Chemistry, Wiley-VCH Verlag, 2011, 2011 (17), pp.3117-3121. ⟨10.1002/ejoc.201100261⟩. ⟨hal-00950011⟩

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