Synthesis 2006(19): 3341-3347  
DOI: 10.1055/s-2006-950228
SPECIALTOPIC
© Georg Thieme Verlag Stuttgart · New York

Aromatic Nitro Groups and Their Reactions with Chelated Ester Enolates

Daniel Stolz, Uli Kazmaier*, Rigobert Pick
Institut für Organische Chemie, Universität des Saarlandes, 66123 Saarbrücken, Germany
Fax: +49(681)3022409; e-Mail: u.kazmaier@mx.uni-saarland.de;
Further Information

Publication History

Received 1 May 2006
Publication Date:
04 September 2006 (online)

Abstract

Chelated amino acid ester enolates react with aromatic nitro compounds in a 1,3-addition mode at the nitro group giving amino acids bearing an aryl(hydroxy)amino side chain. Best results were obtained with trifluoroacetyl-protected glycinates. Two equivalents of enolate are necessary for complete conversion, because one equivalent is oxidized during the reaction.

19

Stolz D., Pick R., Kazmaier U. Synlett, 2006, 1616.