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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 33, 2003 - Issue 8
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Original Articles

Studies on the Preparation of 4-Ethoxyalkyliden and 4-Aminoalkyliden-5(4H)-oxazolones

Marta R. P. Norton Matos REQUIMTE/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
,
Pedro M. P. Gois REQUIMTE/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
,
Maria L. E. N. Mata REQUIMTE/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
,
Eurico J. Cabrita REQUIMTE/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, Portugal
&
Carlos A. M. Afonso REQUIMTE/CQFB, Departamento de Química, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, Caparica, PortugalCorrespondence[email protected]
Pages 1285-1299 | Received 01 Apr 2002, Published online: 15 Aug 2006
 
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Abstract

Optimized conditions for the preparation of 4-ethoxyalkyliden-5(4H)-oxazolones were developed. A considerable steric hindrance was observed on the nucleophilic substitution of the ethoxy group by amines.

Acknowledgments

This work was supported by the Fundação para a Ciência e Tecnologia (FCT, project PRAXIS XXI PCEX/C/QUI/53/96).

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