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Updated: Jul 19, 2026

Synthesis and Functionalization of Nitrogen-doped Carbon Nanotube Cups with Gold Nanoparticles as Cork Stoppers
11:58

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Published on: May 13, 2013

低温のCO酸化は,サポートされていないナノポーラスゴールドの上に発生します

Caixia Xu1, Jixin Su, Xiaohong Xu

  • 1Key Laboratory of Colloid and Interface Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering, Shandong University, Jinan 250100, China.

Journal of the American Chemical Society
|January 4, 2007
PubMed
まとめ

ナノ構造の多孔性ゴールドは,新しいサポートされていない触媒であり,CO酸化における異常な活性を示しています. この金属金触媒は,優れた低温安定性と高炭素一酸化物耐性を有しています.

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Alkenes are converted to 1,2-diols or glycols through a process called dihydroxylation. It involves the addition of two hydroxyl groups across the double bond with two different stereochemical approaches, namely anti and syn. Dihydroxylation using osmium tetroxide progresses with syn stereochemistry.
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Oxidation of Alkenes: Anti Dihydroxylation with Peroxy Acids

Diols are compounds with two hydroxyl groups. In addition to syn dihydroxylation, diols can also be synthesized through the process of anti dihydroxylation. The process involves treating an alkene with a peroxycarboxylic acid to form an epoxide. Epoxides are highly strained three-membered rings with oxygen and two carbons occupying the corners of an equilateral triangle. This step is followed by ring-opening of the epoxide in the presence of an aqueous acid to give a trans diol.