title: Palladium nanoparticles stabilized by alkylated polyethyleneimine as aqueous biphasic catalysts for the chemoselective stereocontrolled hydrogenation of alkenes.
abstract: Palladium nanoparticles were prepared, stabilized, and dispersed in water by alkylated branched polyethyleneimine. The palladium nanoparticles were effective aqueous biphasic catalysts for the chemoselective hydrogenation of alkenes with preferential reduction of less hindered double bonds, such as reduction of 3-methylcyclohexene in the presence of 1-methylcyclohexene and 1-octene in the presence of 2-methyl-2-heptene. [structure: see text].
authors.affiliation: Department of Organic Chemistry, Weizmann Institute of Science, Rehovot, Israel 76100.
authors.forename: Maxym V
authors.initials: MV
authors.lastname: Vasylyev
authors.forename: Galia
authors.initials: G
authors.lastname: Maayan
authors.forename: Yonathan
authors.initials: Y
authors.lastname: Hovav
authors.forename: Adina
authors.initials: A
authors.lastname: Haimov
authors.forename: Ronny
authors.initials: R
authors.lastname: Neumann