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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >A green and sustainable phosphine-free NHC-ruthenium catalyst for selective oxidation of alcohols to carboxylic acids in water
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A green and sustainable phosphine-free NHC-ruthenium catalyst for selective oxidation of alcohols to carboxylic acids in water

机译:一种绿色,可持续的无膦NHC钌催化剂,用于将醇选择性氧化为水中的羧酸

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摘要

In this work, we present a new catalytic system for the selective dehydrogenative oxidation of primary alcohols to carboxylic acids using a phosphine-free NHC-ruthenium catalyst in water under mild reaction conditions. With this catalytic system, a variety of primary alcohols have been converted to carboxylic acids respectively, in aqueous media, without using any additional oxidant; the only side product in this reaction is molecular hydrogen. This novel synthetic protocol is applied for direct oxidation of biologically active monosaccharides and polymers with primary alcohol groups in the side chain. The use of water as a solvent and oxygen donor as well as the absence of any toxic oxidizing agent make this atom economical reaction interesting from an environmental point of view.
机译:在这项工作中,我们提出了一种在温和的反应条件下使用不含膦的NHC-钌催化剂在伯醇选择性脱氢氧化成羧酸的新催化体系。使用这种催化系统,可以在水性介质中将多种伯醇分别转化为羧酸,而无需使用任何其他氧化剂。该反应中唯一的副产物是分子氢。这种新颖的合成方案可用于直接氧化具有侧链伯醇基团的生物活性单糖和聚合物。从环境的观点来看,使用水作为溶剂和氧供体以及不存在任何有毒的氧化剂使得该原子经济反应变得令人感兴趣。

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