Journal
TETRAHEDRON LETTERS
Volume 54, Issue 12, Pages 1538-1541Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.01.029
Keywords
1,3-Diketones; Aryl hydrazines; Aryl hydrazides; Catalyst-free; Condensation
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Funding
- U.S. Environmental Protection Agency
- Office of Research and Development
- EPA
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A simple and facile condensation of hydrazines/hydrazides and diamines with 1,3-diketones/beta-ketoester leads to the preparation of pyrazoles and diazepines in high yields. This eco-friendly protocol is accelerated by microwave heating and efficiently carried out without any reaction solvent or catalyst in as little as 5 min. Published by Elsevier Ltd.
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