Nickel-catalyzed 1,4-addition of trialkylboranes to alpha,beta-unsaturated esters: dramatic enhancement by addition of methanol.
[reaction: see text] Nickel catalyst systems for 1,4-addition of trialkylboranes to alpha,beta-unsaturated esters have been developed. Addition of methanol was found to be essential for the alkylation reaction with 9-alkyl-9-BBNs.
Hirano
Koji
K
Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
Yorimitsu
Hideki
H
Oshima
Koichiro
K