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1. Journal of Chemical Research, 2002, 1, 37-39.
A simple and efficient synthesis of 3,4-dihydropyrimidin-2-ones catalysed by amidosulfonic acid
Jin, Tongshou; Zhang, Suling; Zhang, Suyun; Guo, Junjie; Li, Tongshuang
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http://www.ingentaconnect.com/content/stl/jcr/2002/00002002/00000001/art00017Magnesium Chloride Hexahydrate Catalyzed One-Pot Synthesis of 3,4-Dihydropyrimidin-2-(1H)ones Under Solvent-Free Conditions
Guo-Lin Zhang; Xiao-Hua Cai
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http://dx.doi.org/10.1081/SCC-200050956Bronsted Acidic Ionic Liquid: An Efficient and Reusable Catalyst for the Synthesis of 3,4-Dihydropyrimidin-2(1H)-ones
Renwei Zheng; Xiaoxia Wang; Hui Xu; Jingxing Du
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http://dx.doi.org/10.1080/00397910600588488Studies on the Biginelli reaction: a mild and selective route to 3,4-dihydropyrimidin-2(1H)-ones via enamine intermediates. John Mabry and Bruce Ganem
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http://dx.doi.org/10.1016/j.tetlet.2005.10.124NbCl5-catalyzed Rapid and Efficient Synthesis of 3,4-Dihydropyrimidinones Under Ambient Conditions
J. S. Yadav, B. V. S. Reddy, Jaishri J. Naidu and K. Sadashiv
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http://www.jstage.jst.go.jp/article/cl/33/7/926/_pdfСпасибо!
М.Колосов