C-C bond formation with carbon dioxide promoted by a silver catalyst.
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.
Department of Chemistry, Keio University, Hiyoshi, Kohoku-ku, Yokohama, Japan.
Satoshi
S
Kikuchi
Kohei
K
Sekine
Tomonobu
T
Ishida
Tohru
T
Yamada