Well-structured bimetallic surface capable of molecular recognition for chemoselective nitroarene hydrogenation.

ABSTRACT: Unprecedented molecular recognition ability governed by a simple bimetallic surface is reported. A series of Rh-based ordered alloys supported on silica gel (Rh _x M _y /SiO₂, where M is Bi, Fe, Ga, Ge, In, Ni, Pb, Sb, Sn, or Zn) were tested in the hydrogenation of nitrostyrene to form aminostyrene. RhIn/SiO₂ showed remarkably high catalytic activity and good selectivity under 1 atm H₂ at room temperature. Moreover, various other nitroarenes containing carbonyl, cyano, or halo moieties were selectively hydrogenated into the corresponding amino derivatives using RhIn/SiO₂. Kinetic study and density functional theory (DFT) calculations revealed that the high selectivity originates from RhIn/SiO₂ adsorbin

SUBMITTER: Furukawa S 

PROVIDER: S-EPMC6014374 | biostudies-literature | 2016 Jul

REPOSITORIES: biostudies-literature