β-Nitro acrylic esters as precursors for the one pot synthesis of polyfunctionalized α,β-unsaturated esters
摘要:
Conjugate addition of activated methylene derivatives to beta-nitro acrylic esters in acetonitrile with DBU (2 equiv) as base, allows the one pot formation of polyfunctionalized alpha,beta-unsaturated esters. The procedure is based on a tandem 'Michael addition elimination' process favoured by the Simultaneous behaviour of the nitro group as both an electron-withdrawing and leaving group. (C) 2005 Elsevier Ltd. All rights reserved.