Synthesis 2011(14): 2310-2320  
DOI: 10.1055/s-0030-1260064
PAPER
© Georg Thieme Verlag Stuttgart ˙ New York

Chemodivergent Synthesis of 7-Aryl/alkyl-6-hydroxy-1,4-oxazepan-5-ones and 2-[Aryl/alkyl(hydroxy)methyl]morpholin-3-ones from a Common Epoxyamide Precursor

David M. Aparicioa, Joel L. Terán*a, Luis F. Roab, Dino Gneccoa, Jorge R. Juáreza, María L. Oreaa, Angel Mendozaa, Marcos Flores-Alamoc, Laurent Micouind
a Centro de Química, Benemérita Universidad Autónoma de Puebla, Edif. 103F Complejo de Ciencias, C.U., 72570 Puebla, Pue., México
Fax: +52(222)229551; e-Mail: joelluisteran@hotmail.com;
b División Académica de Ciencias Básicas, Universidad Juárez Autónoma de Tabasco, 86690 Cunduacán, Tab., México
c Facultad de Química, Universidad Nacional Autónoma de México, 04510 México, DF, México
d Laboratoire de Chimie Thérapeutique, UMR 8638 associée au CNRS et à l’Université Paris Descartes, Faculté des Sciences Pharmaceutiques et Biologiques, 4 av de l’Observatoire, 75270 Paris cedex 06, France
Further Information

Publication History

Received 14 January 2011
Publication Date:
09 June 2011 (online)

Abstract

We present here a regiospecific synthesis of 7-alkyl- or 7-aryl-6-hydroxy-1,4-oxazepan-5-ones and 2-[aryl(hydroxy)methyl]- or 2-(1-hydroxyalkyl)morpholin-3-ones from a diastereomeric mixture of trans-3-alkyl- or -3-aryl-N-(2-hydroxyethyl)-N-(1-phenylethyl)oxirane-2-carboxamides. This chemodivergent synthesis is easily controlled by an appropriate choice of cyclization reaction conditions.

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When sodium was changed to lithium, the corresponding morpholin-3-one was obtained; however, prolonged reaction times were required.