第一作者：Rongxiu Guo

通讯作者：Hong-bin Sun, Dr. Dun Niu, Dr. Qionglin Liang

合写作者：GuangQi He, Lei Liu, Yongjian Ai, Ze-nan Hu, Xinyue Zhang, Haimeng Tian

发表刊物：ChemPlusChem

期号：8

卷号：85

影响因子：3.0

DOI码：10.1002/cplu.202000028

所属单位：Department of Chemistry, Northeastern University

教研室：物理化学

刊物所在地：GERMANY

摘要：Abstract Hydrogenation of nitriles is an efficient and environmentally friendly route to synthesize symmetrical secondary amines, but it usually produces a mixture of amines, imines, and hydrogenolysis by-products. Herein we report a magnetic quaternary-component Pt−CuFe/Fe3O4 nanocatalyst system for the selective synthesis of symmetrical secondary amines with ammonia borane as hydrogen donor. The catalyst with a low Pt loading (0.456 wt%) is the source of the activity, and the d-band electron transfer from Cu to Fe enhances the selectivity. This synergistic effect results in the transformation of benzonitrile to dibenzylamine with excellent conversion (up to 99 %) and nearly quantitative selectivity (up to 96 %) under mild reaction conditions, nevertheless, the reaction TOF is as high as up to 1409.9 h−1. A variety of nitriles are suitable for the synthesis of symmetrical secondary amines. More importantly, unwanted hydrogenolysis byproducts, especially toluene, is not detected at all. In addition, the catalyst is magnetically recoverable, and it can be reused up to five times.

关键字：amines,heterogeneous catalysis, hydrogen transfer, iron oxide, transition metals

论文编号：WOS:000563997000021

学科门类：理学

一级学科：化学

页面范围：1783-1788

ISSN号：2192-6506

是否译文：否