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Efficient Reduction of Nitroarenes and Azoarenes to Arylamines by Pb/NH4Br under Neutral Conditions
- DOI:
- 10.1081/SIM-200067038
pages 477-482
Available online: 31 Jan 2012Abstract
A simple, selective and cost-effective method for the reduction of nitroarenes to arylamines within 20–40 min is described. Azoarenes, both symmetrical and unsymmetrical, give arylamines on reaction with lead metal powder and ammonium bromide in refluxing methanol, in high yields. The rate of the reaction of azoarenes is greatly accelerated on irradiation at 35 kHz in a sonic bath maintained at 25°C.
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- Citation information:
- Available online: 31 Jan 2012
Author affiliations
- a Department of Studies in Chemistry, Central College Campus, Bangalore University, Bangalore, India
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