Australian Journal of Chemistry Australian Journal of Chemistry Society
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Microwave-Assisted Synthesis of Vinyl Esters through Ruthenium-Catalyzed Addition of Carboxylic Acids to Alkynes

François Nicks A , Lionel Libert A , Lionel Delaude A and Albert Demonceau A B
+ Author Affiliations
- Author Affiliations

A Laboratory of Macromolecular Chemistry and Organic Catalysis, University of Liège, Sart-Tilman (B.6a), B-4000 Liège, Belgium.

B Corresponding author. Email: a.demonceau@ulg.ac.be

Australian Journal of Chemistry 62(3) 227-231 https://doi.org/10.1071/CH08480
Submitted: 3 November 2008  Accepted: 19 December 2008   Published: 20 March 2009

Abstract

A rapid and efficient method is described for the selective synthesis of enol esters via the microwave-accelerated addition of carboxylic acids to terminal alkynes. The method employs the readily available [RuCl2(p-cymene)(PPh3)] complex as catalyst without the need of bases, and reactions are complete in 20 min.


Acknowledgements

The authors thank the ‘Fonds pour la Formation à la Recherche dans l’Industrie et dans l’Agriculture’ (FRIA) for a fellowship to F. Nicks and the ‘Fonds National de la Recherche Scientifique’ (FNRS), Brussels, for financial support of the present work (grants FRFC 2.4565.07 and 2.4645.07) and for the purchase of major instrumentation. We also thank BRS, Drogenbos, Belgium, for helpful discussion and technical support.


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