title: Gallium-mediated allyl transfer from bulky homoallylic alcohol to aldehydes via retro-allylation: stereoselective synthesis of both erythro- and threo-homoallylic alcohols.
abstract: Retro-allylation of bulky gallium homoallylic alkoxides occurs to generate (Z)- and (E)-crotylgallium reagents stereospecifically, starting from erythro- and threo-homoallylic alcohols, respectively. The (Z)- and (E)-crotylgallium reagents immediately reacted with aromatic aldehydes to afford the corresponding erythro- and threo-homoallylic alcohols, respectively. [reaction: see text]
authors.affiliation: Department of Material Chemistry, Graduate School of Engineering, Kyoto University, Kyoto-daigaku Katsura, Nishikyo-ku, Kyoto 615-8510, Japan.
authors.forename: Sayuri
authors.initials: S
authors.lastname: Hayashi
authors.forename: Koji
authors.initials: K
authors.lastname: Hirano
authors.forename: Hideki
authors.initials: H
authors.lastname: Yorimitsu
authors.forename: Koichiro
authors.initials: K
authors.lastname: Oshima