Citation: A. Davoodnia, M. Roshani, S.H. Malaeke, M. Bakavoli. A rapid synthesis of isoxazolo[5,4-d]pyrimidin-4(5H)-ones under microwave irradiation with solid acid catalysis in solvent-free conditions[J]. Chinese Chemical Letters, ;2008, 19(5): 525-528. doi: 10.1016/j.cclet.2008.01.037 shu

A rapid synthesis of isoxazolo[5,4-d]pyrimidin-4(5H)-ones under microwave irradiation with solid acid catalysis in solvent-free conditions

Department of Chemistry, School of Sciences, Islamic Azad University, Mashhad Branch, Mashhad 91735-413, Iran

Received Date: 3 December 2007

A rapid and efficient method for the synthesis of isoxazolo[5,4-d]pyrimidin-4(5H)-ones has been developed throughcyclocondensation of 5-aminoisoxazole-4-carboxamides with orthoesters under conventional heating and solvent-free microwaveirradiation with solid acid catalysis. In comparison, the reactions are faster and the yields are higher under microwave irradiation.
- Isoxaxolo[5,4-d]pyrimidin-4(5H)-ones,
- Orthosesters,
- Microwave irradiation,
- Conventional heating
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