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Your search keyword '"Asao, N."' showing total 3 results
Start Over Author "Asao, N." Topic chemistry
3 results on '"Asao, N."'

1. Selective Aerobic Oxidation of Methanol in the Coexistence of Amines by Nanoporous Gold Catalysts: Highly Efficient Synthesis of Formamides

Author

Tanaka, S., Minato, T., Ito, E., Hara, Masahiko, Kim, Y., Yamamoto, Y., and Asao, N.

Subjects
Chemistry, Nanoporous, Organic Chemistry, Alloy, technology, industry, and agriculture, General Chemistry, engineering.material, Heterogeneous catalysis, Highly selective, Catalysis, chemistry.chemical_compound, engineering, Organic chemistry, Methanol, Chemoselectivity, Formamides
Abstract

Holey gold: Highly selective aerobic oxidation of methanol over alkylamines was achieved with a reusable nanoporous gold (AuNPore) catalyst that was fabricated from a Au-Ag alloy. This excellent chemoselectivity enabled direct N-formylation of alkylamines from a mixture of methanol and amines. The remarkable catalytic activity was attributed to the synergistic effect between gold and the residual silver remaining in the AuNPore.

Published
2013

2. Aerobic oxidation of alcohols in the liquid phase with nanoporous gold catalysts

Author

Asao, N., Hatakeyama, N., Ito, E., Minato, T., Hara, Masahiko, Kim, Y., Yamamoto, Y., Chen, M. W., Zhang, W., and Inouei, A.

Subjects
inorganic chemicals, Nanoporous, Chemistry, Inorganic chemistry, Metals and Alloys, Liquid phase, General Chemistry, Catalysis, Surfaces, Coatings and Films, Electronic, Optical and Magnetic Materials, Flow system, Alcohol oxidation, Materials Chemistry, Ceramics and Composites, Leaching (metallurgy)
Abstract

Aerobic oxidation of alcohols in the liquid phase proceeded smoothly in the presence of nanoporous gold catalyst. The catalyst is reusable multiple times without leaching and loss of the catalytic activity. The reaction was applied successfully to a flow system. Adsorptions of O(2) and 1-phenylethanol into the AuNPore were confirmed by TDS analysis.

Published
2012

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