Synfacts 2008(7): 0748-0748  
DOI: 10.1055/s-2008-1077827
Metal-Mediated Synthesis
© Georg Thieme Verlag Stuttgart · New York

Palladium-Catalyzed Cleavage of C-C Triple Bonds with Molecular Oxygen

Contributor(s): Paul Knochel, Tobias Thaler
A. Wang, H. Jiang*
South China University of Technology, Guangzhou, P. R. of China
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Publikationsverlauf

Publikationsdatum:
20. Juni 2008 (online)

Significance

A Pd-catalyzed cleavage of alkynes with molecular oxygen in various alcohols leading to the corresponding carboxylic esters has been realized. ZnCl2 ·2H2O was hereby found to be the most suitable Lewis acid for promoting the cleavage. The reaction was successfully applied to both symmetrically and unsymmetrically substituted alkynes.