Tetrahedron Letters

Palladium-catalyzed Sonogashira cross-coupling of organic tellurides with alkynes

S Kawaguchi, P Srivastava, L Engman

Index: Kawaguchi, Shin-Ichi; Srivastava, Puneet; Engman, Lars Tetrahedron Letters, 2011 , vol. 52, # 32 p. 4120 - 4122

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Citation Number: 9

Abstract

Abstract Alkyl aryl tellurides and a tellurol ester were used as coupling partners in Pd (0)- catalyzed Sonogashira reactions. Microwave-assisted reactions of alkyl aryl tellurides with alkynes in the presence of CuI and catalytic amounts of Pd (PPh 3) 4 produced alkynyl arenes. Similarly, a tellurol ester on reaction with alkynes afforded alkynyl phenyl ketones in the presence of CuI and a catalytic amount of Pd (PPh 3) 4 at room temperature.