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1. Ultrasound-Assisted Synthesis of Novel 4-(2-Phenyl-1,2,3- Triazol-4-yl)-3,4-Dihydropyrimidin-2(1H)-(Thio)ones Catalyzed by Sm(CIO4)3.

Author

Chen-Jiang Liu and Ji-De Wang

Subjects
*TRIAZOLES, *MEDICAL imaging systems, *MEDICAL equipment, *ECHOCARDIOGRAPHY, *SAMARIUM, *PERCHLORATES, *CATALYSTS, *CHEMICAL inhibitors, *METAL catalysts
Abstract

An efficient synthesis of novel 4-(2-phenyl-1,2,3-triazol-4-yl)-3,4-dihydropyrimidin- 2(1H)-(thio)ones from 1,3-dicarbonyl compounds, 2-phenyl-1,2,3-triazole-4- carbaldehyde and urea or thiourea under ultrasound irradiation and using samarium perchlorate as catalyst is described. Compared with conventional methods, the main advantages of the present methodology are milder conditions, shorter reaction times and higher yields. [ABSTRACT FROM AUTHOR]

Published
2010
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