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An efficient hydration of nitriles with ruthenium-supported heterogeneous catalyst in water under moderate conditions

机译:在中等条件下,在水中具有钌 - 载体的非均相催化剂的高效水合

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摘要

A facile eco-friendly heterogeneous catalytic system has been developed for amide synthesis that further utilized in pharmaceutical and organic chemistry. The Ru/MnO2 catalyst has shown outstanding and unprecedented activity for a wide range of aliphatic and benzylic nitriles in green solvent water at 60 degrees C. The system has also exhibited a remarkable tolerance for selective hydration of heteroatom (e.g. nitrogen, oxygen and sulphur atoms) containing nitriles. Pharmaceutically important nicotinamides and pyrazinamide has been synthesized by hydration of the heteroatomic nitriles with appreciable yields and selectivities. Moreover, the Ru/MnO2 catalyst has employed water as a benign solvent, with more than 30,000 TONs and reusability five times after isolation from the reaction mixture by centrifugation and easy workup that established a path for green environmental and technologically acceptable protocol. (C) 2021 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.
机译:开发了一种简便、环保的多相催化体系用于酰胺合成,并进一步应用于医药和有机化学。Ru/MnO2催化剂在60℃下对绿色溶剂水中的各种脂肪族和苄基腈表现出了卓越且前所未有的活性。该系统还表现出对含腈的杂原子(例如氮、氧和硫原子)选择性水合的显著耐受性。通过异原子腈的水合反应合成了具有重要药用价值的烟酰胺和吡嗪酰胺,具有可观的产率和选择性。此外,Ru/MnO2催化剂使用水作为一种良性溶剂,通过离心和简单的处理从反应混合物中分离出来后,可重复使用5次,超过30000吨,为绿色环保和技术上可接受的方案开辟了道路。(2021)韩国工业和工程化学学会。由爱思唯尔B.V.出版。版权所有。

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