Abstract
A simple and effective synthesis of 3,4-dihydropyrimidin-2(1H)-one derivatives from aldehydes, 1,3-dicarbonyl compounds and urea using copper(II) trifluoroacetate as catalyst under solvent-free conditions is described. Compared with the classical Biginelli reaction condition, this new method has the advantage of good to excellent yields and short reaction time.
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Song, D., Wang, R., Chen, Y. et al. Copper(II) trifluoroacetate catalyzed synthesis of 3,4- dihydropyrimidin-2(1H)-ones under solvent-free conditions. React Kinet Catal Lett 95, 385–390 (2008). https://doi.org/10.1007/s11144-008-5379-2
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DOI: https://doi.org/10.1007/s11144-008-5379-2