期刊
APPLIED CATALYSIS B-ENVIRONMENTAL
卷 249, 期 -, 页码 32-41出版社
ELSEVIER
DOI: 10.1016/j.apcatb.2019.02.037
关键词
Copper aluminum mixed metal oxide; Mesoporous material; Oxidative coupling of amines; Imine synthesis; Heterogeneous catalysis; ROS
资金
- U.S. Department of Energy, Office of Basic Energy Sciences, Division of Chemical, Biological and Geological Sciences [DE-FG02-86ER13622]
A mesoporous, monomodal copper aluminum mixed metal oxide (MMO) (average pore size 9.63 nm, surface area 140 m(2)/g) synthesized via a modified inverse micelle method, efficiently catalyzes aerobic oxidative coupling of amines to imines. This material exhibits excellent conversion (> 99%) and selectivity (> 99%) towards imine synthesis under mild, solvent free, green conditions utilizing atmospheric air as the sole oxidant. Catalytic activity is observed for a diverse range of amine substrates. The aerobic oxidation of amines to imines follows a unique mechanistic pathway which involves Reactive Oxygen Species (ROS).
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