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Org Lett. 2003 Aug 7;5(16):2869-71.

Lanthanide triflate-promoted palladium-catalyzed cyclization of alkenyl beta-keto esters and amides.

Author information

1
Department of Chemistry, The University of Hong Kong, Pokfulam Road, Hong Kong, PR China. yangdan@hku.hk

Abstract

[reaction: see text] Lanthanide triflates were found to promote the palladium-catalyzed cyclization of alkenyl beta-keto esters and amides. In the presence of catalytic amounts of PdCl(2)(MeCN)(2) and Ln(OTf)(3), various alkenyl beta-keto esters and amides underwent regioselective cyclization reactions to give six-, seven-, or eight-membered-ring carbocycles in moderate to excellent yields.

PMID:
12889895
DOI:
10.1021/ol0349110

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