Synthesis of 4,4´-(Arylmethylene)bis(1H-pyrazol-5-ols) catalyzed by nanosilica supported perchloric acid in water

الموضوعات : Iranian Journal of Catalysis

Bahareh Sadeghi ¹ (Department of Chemistry, Yazd Branch, Islamic Azad University, P.O. Box 89195-155, Yazd, Iran.)
Maryam Ghorbani Rad ² (Department of Chemistry, Yazd Branch, Islamic Azad University, P.O. Box 89195-155, Yazd, Iran.)

تاريخ الإرسال : 10 السبت , شوال, 1434 تاريخ التأكيد : 16 الإثنين , جمادى الأولى, 1435 تاريخ الإصدار : 03 الأحد , شعبان, 1435

الکلمات المفتاحية: Water, Nano-SiO2/HClO4, Aromatic aldehydes, 3–Methyl-1-phenyl-2-pyrazoline-5-one,

ملخص المقالة :

Reaction between aromatic aldehydes and 3–methyl-1-phenyl-2-pyrazoline-5-one catalyzed by nano-SiO2/HClO4 in water under reflux provided a simple and efficient route for the synthesis of 4-((5-hydroxy-3-methyl-1-phenyl-1H-pyrazol-4-yl)(aryl)methyl)-3-methyl-1-phenyl-1H-pyrazol-5-ol derivatives in high yields.

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