Journal
TETRAHEDRON LETTERS
Volume 48, Issue 38, Pages 6609-6613Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.07.114
Keywords
microwave-assisted chemistry; quinazolin-4-ones; benzoxazin-4-ones; formamide
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An efficient methodology for the preparation of a series of 2,3-disubstituted-quinazolin-4(3H) -ones is described via a three step reaction from anthranilic acid. The obtained results also reveal that microwave-assisted rapid decomposition of formamide under controlled conditions of power, temperature and time is a very convenient source of ammonia for the synthesis of 2-substituted-quinazolin-4(3H)-ones and other rings. (c) 2007 Elsevier Ltd. All rights reserved.
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