Synthesis 2002(12): 1740-1746
DOI: 10.1055/s-2002-33648
PAPER
© Georg Thieme Verlag Stuttgart · New York

A Versatile and Efficient Synthesis of 2-Alkyl and 2-Aryl-6-alkyl-2,3-dihydro-1H-pyridin-4-ones

Nicolas Leflemme, Patrick Dallemagne*, Sylvain Rault
Centre d"Etudes et de Recherche sur le Medicament de Normandie, UFR des Sciences Pharmaceutiques, 1 rue Vaubénard 14032 CAEN Cedex, France
Fax: +33(2)31931188; e-Mail: dallemagne@pharmacie.unicaen.fr;
Further Information

Publication History

Received 4 April 2002
Publication Date:
05 September 2002 (online)

Abstract

A versatile and efficient method for the preparation of 2-alkyl and 2-aryl-6-alkyl-2,3-dihydro-1H-pyridin-4-ones is described. The sequence involved the condensation of β-amino acids and t-butyl ketoester to give enaminoesters whose intramolecular cyclisation followed by an hydrolysis step afforded the expected products.