Synthesis of 1,3,5-tri-substituted pyrazoles promoted by P2O5.SiO2
الموضوعات : Iranian Journal of CatalysisAbdolhamid Bamoniri 1 , BiBi Fatemeh Mirjalili 2 , Abbas Ali Jafari 3 , Fatemeh Abasaltian 4
1 - Department of Organic Chemistry, Faculty of Chemistry, University of Kashan , Kashan, I.R.Iran.
2 - Department of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.
3 - Department of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.
4 - Department of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.
الکلمات المفتاحية: 1, 3, Solvent-free, P2O5.SiO2, 5-tri-substituted pyrazoles, 3-diketones, Hydrazines,
ملخص المقالة :
Silica supported phosphorus pentoxide (P2O5·SiO2) is an efficient catalyst for synthesis of 1,3,5-substituted pyrazoles via the condensation of 1,3-diketones and hydrazines. Simplicity of procedure, mild condition, being solvent-free, high yields, and easy workup are some advantages of this protocol.
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