Journal
TETRAHEDRON LETTERS
Volume 48, Issue 41, Pages 7343-7346Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2007.08.031
Keywords
Biginelli reaction; 3,4-dihydropyrimidin-2(1 H)-ones; polystyrenesulfonic acid (PSSA); aqueous medium; microwave irradiation; greener; sustainable
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An environmentally benign aqueous Biginelli protocol for the synthesis of substituted 3,4-dihydropyrimidin-2(l H) -ones using polystyrenesulfonic acid (PSSA) as a catalyst has been achieved. These microwave-assisted reactions proceed efficiently in water in the absence of organic solvent, with simple filtration as the product isolation step. (c) 2007 Elsevier Ltd. All rights reserved.
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