Journal
BULLETIN OF THE CHEMICAL SOCIETY OF ETHIOPIA
Volume 33, Issue 1, Pages 135-142Publisher
CHEM SOC ETHIOPIA
DOI: 10.4314/bcse.v33i1.13
Keywords
One-pot synthesis; 5-Amino-1H-pyrazole; Hydrazine hydrate; Vanadium oxide; Silica
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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).
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