Citation: Farhad Shirini, Mohammad Ali Zolfigol, Jalal Albadi. Melamine trisulfonic acid:A new, efficient and recyclable catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones in the absence of solvent[J]. Chinese Chemical Letters, ;2011, 22(3): 318-321. doi: 10.1016/j.cclet.2010.10.033 shu

Melamine trisulfonic acid:A new, efficient and recyclable catalyst for the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones in the absence of solvent

a Department of Chemistry, College of Science, University of Guilan, Rasht 41335, Islamic Republic of Iran;
b College of Chemistry, Bu-Ali Sina University, Hamadan, Islamic Republic of Iran

Received Date: 1 July 2010

Fund Project: We are thankful to the University of Guilan Research Council for the partial support of this work.

Melamine trisulfonic acid (MTSA) can be used as an efficient and recyclable catalyst for the promotion of the synthesis of 3,4-dihydropyrimidin-2(1H)-ones/thiones (DHPMs) in the absence of solvent. All reactions were performed at 80℃ in good to high yields.
- Melamine trisulfonic acid,
- 3,4-Dihydropyrimidin-2(1H)-ones/thiones,
- Biginelli reaction,
- Aldehydes,
- Solvent-free reactions
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