Journal
TETRAHEDRON LETTERS
Volume 44, Issue 16, Pages 3305-3308Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0040-4039(03)00619-1
Keywords
aldehydes; Biginelli reactions; catalysts; 3,4-dihydropyrimidin-2(IH)-ones; copper and compounds
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Copper(II) triflate catalyzes efficiently the three-component condensation reaction of an aldehyde, beta-ketoester and urea in acetonitrile to afford the corresponding 3,4-dihydropyrimidin-2(1H)-ones in high yields. The catalyst exhibited remarkable reusable activity. (C) 2003 Elsevier Science Ltd. All rights reserved.
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