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1. Mendeleev Communications, Volume 14, Issue 5, 2004, Pages 210-212
Sushilkumar S. Bahekar, Sandip A. Kotharkar and Devanand B. Shinde
One-pot construction of dihydropyrimidinones in ionic liquids
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http://dx.doi.org/10.1070/MC2004v014n05ABEH001895
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http://www.sciencedirect.com/science?_ob=ArticleURL&_udi=B8G3W-4S33GB0-F&_user=10&_coverDate=12%2F31%2F2004&_rdoc=1&_fmt=high&_orig=browse&_sort=d&view=c&_acct=C000050221&_version=1&_urlVersion=0&_userid=10&md5=97ae1d2094d3c30a614950ee51f43b85
Zong-Ting Wang, Shu-Chao Wang, Li-Wen Xu
Polymer-Supported Ionic-Liquid-Catalyzed Synthesis of 1,2,3,4-Tetrahydro- 2-oxopyrimidine-5-carboxylates via Biginelli Reaction
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http://dx.doi.org/10.1002/hlca.200590093
Rahul R. Nagawade, Sandeep A. Kotharkar and Devanand B. Shinde
Titanium(IV) chloride catalyzed one-pot synthesis of 3,4-dihydropyrimidin- 2(1H)-ones and thiones
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http://dx.doi.org/10.1070/MC2005v015n04ABEH002123
J. S. Yadav, B. V. S. Reddy, Jaishri J. Naidu and K. Sadashiv
NbCl5-catalyzed Rapid and Efficient Synthesis of 3,4-Dihydropyrimidinones Under Ambient Conditions
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http://dx.doi.org/10.1246/cl.2004.926