Synthesis 2002(18): 2725-2728
DOI: 10.1055/s-2002-35993
PAPER
© Georg Thieme Verlag Stuttgart · New York

One-Pot Synthesis of γ-Diketones, γ-Keto Esters, and Conjugated Cyclopentenones­ from Nitroalkanes

Roberto Ballini*, Luciano Barboni, Giovanna Bosica, Dennis Fiorini
Dipartimento di Scienze Chimiche dell’Università, Via S. Agostino 1, 62032 Camerino (MC), Italy
Fax: +39(737)402297; e-Mail: roberto.ballini@unicam.it;
Further Information

Publication History

Received 28 August 2002
Publication Date:
06 December 2002 (online)

Abstract

Conjugated addition of primary nitroalkanes to α,β-unsaturated ketones or α,β-unsaturated esters, in the presence of two equivalents of DBU, allows the one-pot prepration of γ-diketones or γ-keto esters, respectively. When 2-aryl-1-nitroethane derivatives are employed as starting nitroalkanes in the reaction with α,β-unsaturated ketones, the one-pot formation of cyclopentenones is observed.