Synthesis of 1,3,5-tri-substituted pyrazoles promoted by P2O5.SiO2

محورهای موضوعی : Iranian Journal of Catalysis

Abdolhamid Bamoniri ¹ (Department of Organic Chemistry, Faculty of Chemistry, University of Kashan , Kashan, I.R.Iran.)
BiBi Fatemeh Mirjalili ² (Department of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.)
Abbas Ali Jafari ³ (Department of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.)
Fatemeh Abasaltian ⁴ (Department of Chemistry, College of Science, Yazd University, P.O.Box 89195-741, Yazd, I.R.Iran.)

تاریخ دریافت : 1390/09/18 تاریخ پذیرش : 1391/02/30 تاریخ انتشار : 1391/03/12

کلید واژه: 1, 3, Solvent-free, P2O5.SiO2, 5-tri-substituted pyrazoles, 3-diketones, Hydrazines,

چکیده مقاله :

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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