V2O5/SiO2 AS AN EFFICIENT CATALYST IN THE SYNTHESIS OF 5-AMINO-PYRAZOLE DERIVATIVES UNDER SOLVENT FREE CONDITION

被引:36
作者
Khatab, Tamer K. [1 ]
Hassan, Ashraf S. [1 ]
Hafez, Taghrid S. [1 ]
机构
[1] Natl Res Ctr, Organometall & Organometalloid Chem Dept, Cairo 12622, Egypt
关键词
One-pot synthesis; 5-Amino-1H-pyrazole; Hydrazine hydrate; Vanadium oxide; Silica; ROUTE;
D O I
10.4314/bcse.v33i1.13
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
An efficient and facile approach for the synthesis of 5-aminopyrazoles from ketene S,N-acetal and hydrazine hydrate via catalytic reaction under solvent free condition has been described. V2O5/SiO2 as a heterogeneous catalyst was prepared and characterized using X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and scanning electron microscope (SEM).
引用
收藏
页码:135 / 142
页数:8
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