Microwave-Assisted Synthesis of Vinyl Esters through Ruthenium-Catalyzed Addition of Carboxylic Acids to Alkynes

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Contents Vol 62(3)

doi:10.1071/CH08480

Microwave-Assisted Synthesis of Vinyl Esters through Ruthenium-Catalyzed Addition of Carboxylic Acids to Alkynes

François Nicks ^A, Lionel Libert ^A, Lionel Delaude ^A, Albert Demonceau ^A ^B

^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





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Australian Journal of Chemistry 62(3) 227–231 http://dx.doi.org/10.1071/CH08480
Submitted: 3 November 2008 Accepted: 19 December 2008 Published online: 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.