Journal
TETRAHEDRON LETTERS
Volume 53, Issue 20, Pages 2518-2521Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.03.012
Keywords
2-N-substituted benzothiazole; Carbon disulfide; Piperidine; CuO nanoparticles; Recyclability
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Funding
- CSIR, New Delhi
- UGC, New Delhi
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A simple and highly practical method for the synthesis of 2-N-substituted benzothiazoles has been developed by using nanocopper oxide as a recyclable catalyst. The present tandem process allows to get access to a wide range of 2-N-substituted benzothiazoles in good to excellent yields by the reaction of 2-iodo aniline with carbon disulfide and piperidine in presence of KOH as a base and DMSO as a solvent under ligand-free conditions. (C) 2012 Elsevier Ltd. All rights reserved.
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