Angewandte Chemie. International edition in English 2012-07-09

C-C bond formation with carbon dioxide promoted by a silver catalyst.

Satoshi Kikuchi, Kohei Sekine, Tomonobu Ishida, Tohru Yamada

Index: Angew. Chem. Int. Ed. Engl. 51(28) , 6989-92, (2012)

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Abstract

A catalytic amount of silver benzoate with 7-methyl-1,5,7-triazabicyclo[4.4.0]dec-5-ene (MTBD) was an effective catalytic system for the reaction of carbon dioxide with various ketones containing an alkyne group at an appropriate position. These reactions afforded the corresponding γ-lactone derivatives in good to high yields under mild conditions.Copyright © 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.