Journal
TETRAHEDRON LETTERS
Volume 53, Issue 19, Pages 2440-2443Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2012.03.007
Keywords
Benzothiazole; Benzoxazole; Benzimidazole; Propylphosphonic anhydride ((R) T3P); Benzazole; Microwave
Categories
Funding
- National Natural Science Foundation of China [21002125]
- China Scholarship Council
- la Fondation Franco-Chinoise pour la Science et ses Applications
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Propylphosphonic anhydride ((R) T3P) promotes cyclization of o-aminobenzenethiol, o-aminophenol, and o-phenylenediamine with carboxylic acids under microwave irradiation. The one-pot procedure is efficient and allows short reaction times, easy workup, and good yields. Thus, we describe here a method for quick preparation of benzothiazoles, benzoxazoles and benzimidazoles. (C) 2012 Elsevier Ltd. All rights reserved.
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