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The selective reduction of nitroarenes to N-arylhydroxylamines using Zn in a CO2/H2O system

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Indexed by:期刊论文

Date of Publication:2009-01-01

Journal:GREEN CHEMISTRY

Included Journals:SCIE、Scopus

Volume:11

Issue:9

Page Number:1397-1400

ISSN No.:1463-9262

Abstract:Nitroarenes are reduced to the corresponding N-arylhydroxylamines with high selectivity using Zn dust in a CO2/H2O system under mild conditions. The yield of N-phenylhydroxylamine from nitrobenzene is 88% when the reaction is carried out at 25 degrees C for 1.5 hours with a Zn to nitrobenzene molar ratio equal to 3 under 0.1 MPa CO2. Other nitroarenes, which contain reducible functionality other than a nitro group, are also reduced to the corresponding N-arylhydroxylamines with yield from 88% to 99%. The process fully removes the need to use NH4Cl and is environmentally benign.

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