Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

Abstract

Catalytic Performance of M-ZSM-5 Catalysts for Conversion of 5α-cholestanol and Cinnamic Alcohol

Author(s): Dehbi Atallah, Lounis Zoubida, Farouk Hamza Reguig, Adda Abdelghani, Tabti Affaf, Benchikh Imen, Abdelkader Bengueddach

Selective oxidation of 5α-cholestanol and cinnamic alcohol was studied on M-ZSM-5 catalysts, the physico-chemical characterization were investigated by nitrogen adsorption desorption at 77K, X-ray Diffraction (XRD), Thermogravimetric Analysis (TGA), UV-Visible and FTIR spectroscopies. The effect of operating conditions (concentration of metal nitrate and temperature on exchange rate) has been studied. Results show that the M-ZSM-5 catalyst was high stable when the concentration of the metal nitrate Cn-metal=0.2 mol and temperature on exchange rate T=80°C, the characterization results of M-ZSM-5 reveals that Silanols on the catalyst surface play and substantial role in dispersing the MOx active species. Finally, the use of the MFI-type zeolites exchanged with transition metals such as Cr, Cu and Co in oxidation reactions of allylic and steroidal alcohols provides the corresponding products with very high yields and total conversions.


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