Aerobic oxidative coupling of amines to imines by mesoporous copper aluminum mixed metal oxides via generation of Reactive Oxygen Species (ROS)

Journal Article · Thu Feb 21 00:00:00 EST 2019 · Applied Catalysis B: Environmental

DOI:https://doi.org/10.1016/j.apcatb.2019.02.037· OSTI ID:1598188

Dissanayake, Deepamali ^[1]; Achola, Laura A. ^[1]; Kerns, Peter ^[1]; Rathnayake, Dinithi ^[1]; He, Junkai ^[1]; Macharia, John ^[1]; Suib, Steven L.  ^[1]

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1. Univ. of Connecticut, Storrs, CT (United States)

We report a mesoporous, monomodal copper aluminum mixed metal oxide (MMO) (average pore size 9.63 nm, surface area 140 m²/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).

• Research Organization: Univ. of Connecticut, Storrs, CT (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences, and Biosciences Division
• Grant/Contract Number: FG02-86ER13622
• OSTI ID: 1598188
• Journal Information: Applied Catalysis B: Environmental, Vol. 249, Issue C; ISSN 0926-3373
• Publisher: Elsevier
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
Copper aluminum mixed metal oxide
Mesoporous material
Oxidative coupling of amines
Imine synthesis
Heterogeneous catalysis
ROS