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Reports from Chinese Academy of Sciences Provide New Insights into Ketones (Cooperative Dehydrogenation Coupling of Isopropanol and Hydrogenation...

July 22, 2014



Reports from Chinese Academy of Sciences Provide New Insights into Ketones (Cooperative Dehydrogenation Coupling of Isopropanol and Hydrogenation Coupling of Acetone Over a Sodium Tantalate Photocatalyst)

By a News Reporter-Staff News Editor at Life Science Weekly -- Current study results on Ketones have been published. According to news reporting from Beijing, People's Republic of China, by NewsRx journalists, research stated, "Photocatalytic organic syntheses are often limited by their low system efficiency and product selectivity. We demonstrate herein that intermolecular hydrogen transfer from isopropanol to acetone can be achieved efficiently on the surfaces of NaTaO3 photocatalysts, on which 2-hydroxyisopropyl radicals are produced selectively from both oxidation and reduction half-reactions and then coupled to form 2,3-dimethyl-2,3-butanediol."

The news correspondents obtained a quote from the research from the Chinese Academy of Sciences, "Such a process effectively increases the total reaction efficiency. We also found that the two half-reactions occur at different crystal facets and display a remarkably promotive interaction, which dramatically speeds up the reactions by one order of magnitude and significantly restrains side reactions. The sodium ions on the NaTaO3 surfaces play an important role in the promotive effect, likely facilitating the proton transfer between the oxidation and reduction sites."

According to the news reporters, the research concluded: "These factors make the production rate of 2,3-dimethyl-2,3-butanediol reach a very high level (10.87 mmol g(-1) h(-1)), emphasizing the potential of photocatalytic hydrogenation and dehydrogenation in improving system efficiency of photocatalytic organic syntheses."

For more information on this research see: Cooperative Dehydrogenation Coupling of Isopropanol and Hydrogenation Coupling of Acetone Over a Sodium Tantalate Photocatalyst. Chemcatchem, 2014;6(6):1673-1678. Chemcatchem can be contacted at: Wiley-V C H Verlag Gmbh, Boschstrasse 12, D-69469 Weinheim, Germany. (Wiley-Blackwell - www.wiley.com/; Chemcatchem - onlinelibrary.wiley.com/journal/10.1002/(ISSN)1867-3899)

Our news journalists report that additional information may be obtained by contacting B.Y. Cao, Univ Chinese Academy Sci, Beijing 100049, People's Republic of China. Additional authors for this research include J. Zhang, J.H. Zhao, Z.J. Wang, P.J. Yang, H.X. Zhang, L. Li and Z.P. Zhu (see also Ketones).

Keywords for this news article include: Asia, Beijing, Acetone, Ketone Bodies, Photocatalyst, Nanotechnology, Photocatalytic, Emerging Technologies, People's Republic of China

Our reports deliver fact-based news of research and discoveries from around the world. Copyright 2014, NewsRx LLC


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Source: Life Science Weekly


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