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论文类型：期刊论文

发表时间：2012-11-01

发表刊物：RESEARCH ON CHEMICAL INTERMEDIATES

收录刊物：SCIE、EI、Scopus

卷号：38

期号：9

页面范围：2471-2478

ISSN号：0922-6168

关键字：Nitroarenes; Reduction; Zn; CO2-H2O; Ultrasound; N-Arylhydroxylamines

摘要：The promoting effect of ultrasound on the selective reduction of nitroarenes to N-arylhydroxylamines by use of Zn in an environmentally benign CO2-H2O system has been demonstrated. The yield of N-phenylhydroxylamine reaches 95 % when the reaction is carried out with a Zn-to-nitrobenzene molar ratio of 2.2 under ultrasound (40 kHz) at 25 A degrees C and normal pressure of CO2 for 60 min. Application of ultrasound to the reaction has the advantages of higher yield of N-arylhydroxylamines, shorter reaction time, and consumption of less Zn.