Boronic acid catalyzed ene carbocyclization of acetylenic dicarbonyl compounds.

Meiling Li, Ting Yang, Darren J Dixon

Index: Chem. Commun. (Camb.) 46 , 2191, (2010)

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Abstract

The discovery and development of an efficient ene carbocyclization of 1,3-dicarbonyl compounds bearing pendent terminal alkyne substituents under 3-nitrobenzeneboronic acid catalysis is described. The reaction is efficient, easy to perform and general to a wide range of ketoester substrates.