V2O5/SiO2 as an efficient catalyst in the synthesis of 5-amino- pyrazole derivatives under solvent free condition

Bulletin of The Chemical Society of Ethiopia

T. K. Khatab¹ 

关键词: One-pot synthesis;    5-Amino-1H-pyrazole;    Hydrazine hydrate;    Vanadium oxide;    Silica;   

DOI  :  10.4314/bcse.v33i1.13

学科分类：化学（综合）

来源: Chemical Society of Ethiopia

【 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).

【 授权许可】

Unknown