title: Regioselective copper-catalyzed carboxylation of allylboronates with carbon dioxide.
abstract: In the presence of a Cu(I)/NHC catalyst, the reactions of allylboronic pinacol esters with CO2 (1 atm) are highly regioselective, giving exclusively the more substituted β,γ-unsaturated carboxylic acids in most cases. A diverse array of substituted carboxylic acids can be prepared via this method, including compounds featuring all-carbon quaternary centers.
authors.affiliation: Organic Chemistry, Institute of Chemical and Engineering Sciences (ICES), Agency for Science, Technology and Research (A*STAR), 8 Biomedical Grove, Neuros #07-01, Singapore 138665. duong_hung@ices.a-star.edu.sg
authors.forename: Hung A
authors.initials: HA
authors.lastname: Duong
authors.forename: Paul B
authors.initials: PB
authors.lastname: Huleatt
authors.forename: Qian-Wen
authors.initials: QW
authors.lastname: Tan
authors.forename: Eileen Lau
authors.initials: EL
authors.lastname: Shuying