A ppm level Rh-based composite as an ecofriendly catalyst for transfer hydrogenation of nitriles: triple guarantee of selectivity for primary amines

Hits:

First Author:Lei Liu, Jifan Li

Correspondence Author:Hong-Bin Sun, Qionglin Liang

Co author:Yongjian Ai, Yuhong Liu,Jialiang Xiong,Hongdong Wang,a Yijun Qiao,a Wenrui Liu,a Shanchao Tan,a Shaofei Feng,a Kunpeng Wang

Journal:Green Chemistry

Issue:6

Volume:21

Impact Factor:9.3

DOI number:10.1039/c8gc03595d

Affiliation of Author(s):Department of Chemistry, Northeastern University

Teaching and Research Group:物理化学

Place of Publication:ENGLAND

Abstract:Hydrogenation of nitriles to afford amines under mild conditions is a challenging task with an inexpensive heterogeneous catalyst, and it is even more difficult to obtain primary amines selectively because of the accompanying self-coupling side reactions. An efficient catalytic system was designed as Fe3O4@nSiO(2)-NH2-RhCu@mSiO(2) to prepare primary amines through the transfer hydrogenation of nitrile compounds with economical HCOOH as the hydrogen donor. The loading of rhodium in the catalyst could be at the ppm level, and the TOF reaches 6803 h(-1) for Rh. This catalytic system has a wide substrate range including some nitriles that could not proceed in the previous literature. The experimental results demonstrate that the excellent selectivity for primary amines is guaranteed by three tactics, which are the strong active site, the inhibition of side products by the hydrogen source and the special pore structure of the catalyst. In addition, the catalyst could be reused ten times without activity loss through convenient magnetic recovery.

Key Words:没找到!!!!!

Document Code:WOS:000462636800016

Discipline:Natural Science

First-Level Discipline:Chemistry

Page Number:1390-1395

ISSN No.:1463-9262

Translation or Not:no