Synthesis 2006(6): 1045-1049  
DOI: 10.1055/s-2006-926344
PAPER
© Georg Thieme Verlag Stuttgart · New York

A Simple and Direct Access to Ethylidene Malonates

Maité Sylla, Delphine Joseph, Emilie Chevallier, Cheikhou Camara, Françoise Dumas*
Laboratoire de Synthèse de Composés d’Intérêt Biologique, BioCIS, Unité associée au CNRS, Centre d’Etudes Pharmaceutiques, Université Paris Sud, 5 rue Jean-Baptiste Clément, 92296 Châtenay-Malabry Cedex, France
Fax: +33(1)46835752; e-Mail: francoise.dumas@cep.u-psud.fr;
Further Information

Publication History

Received 29 June 2005
Publication Date:
27 February 2006 (online)

Abstract

The condensation of active methylene compounds 1 with acetaldehyde was efficiently promoted by a catalytic amount of lithium bromide in the presence of acetic anhydride to give ethylidene malonates 2 in 77-97% yield.

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Taken from the web page available at:
http://daecr1.harvard.edu/pdf/evans_pKa_table.pdf.