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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Silver nanoparticles supported on alumina– a highly efficient and selective nanocatalyst for imine reduction?
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Silver nanoparticles supported on alumina– a highly efficient and selective nanocatalyst for imine reduction?

机译：银纳米颗粒负载在氧化铝上–一种高效的选择性亚胺还原纳米催化剂？

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摘要

Silver nanoparticles supported on alumina were prepared and tested in the catalytic reduction of various imines to primary and secondary amines and were shown to be exceptionally active and chemoselective. Furthermore, the catalytic activity of the prepared nanocatalyst was also tested in the synthesis of secondary amines from primary amines in a tandem reaction protocol (oxidation– imination–reduction) using air and molecular hydrogen as oxidizing and reducing agents, respectively. The reported synthesis is performed under mild reaction conditions, which complies with the demands of modern organic synthesis. Due to the mild reaction conditions and high conversion as well as high selectivity, we consider that the utilization of silver nanoparticles supported on alumina represents an attractive and environmentally friendly alternative to the current synthesis of N-alkyl amines.
机译：制备并测试了负载在氧化铝上的银纳米颗粒，并将各种亚胺催化还原为伯胺和仲胺，并显示出异常的活性和化学选择性。此外，还分别使用空气和分子氢作为氧化剂和还原剂，在串联反应方案（氧化-胺化-还原）中，从伯胺合成仲胺中测试了制备的纳米催化剂的催化活性。报道的合成是在温和的反应条件下进行的，这符合现代有机合成的要求。由于温和的反应条件和高转化率以及高选择性，我们认为利用氧化铝上负载的银纳米颗粒是目前合成N-烷基胺的一种有吸引力且对环境友好的替代方法。

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