Priyanka G. Mandhane, Ratnadeep S. Joshi, Deepak R. Nagargoje, Charansingh H. Gill, An efficient synthesis of 3,4-dihydropyrimidin-2(1H)-ones catalyzed by thiamine hydrochloride in water under ultrasound irradiation, Volume 51, Issue 23, 9 June 2010, Pages 3138–3140
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http://dx.doi.org/10.1016/j.tetlet.2010.04.037
