CC Bond Formation with Carbon Dioxide Promoted by a Silver Catalyst

• DOI: 10.1002/anie.201201399
• Publication Date: 2012-06-04T19:59:38Z
• Authors: Satoshi Kikuchi; Kohei Sekine; Tomonobu Ishida; Tohru Yamada
• Keywords: Alkyne; Carboxylation; Ton

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