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7915884 
Journal Article 
Ecofriendly oxidation of benzyl alcohol to benzaldehyde using Zr-Ni/Natural phosphate as an efficient and recyclable heterogeneous catalyst 
Laasri, L; El Makhfi, M; Sebti, S 
2020 
1 
Materials Today: Proceedings
ISSN: 2214-7853 
Elsevier Ltd 
2020 International Conference on Advanced Materials, Nanosciences and Applications and Training School in Spectroscopies for Environment and Nanochemistry 
31 
S156-S161 
English 
WOS:000581127100027 
The partial oxidation of benzyl alcohol to benzaldehyde is a fundamental synthetic transformation in organic chemistry. However, the conventional oxidation methods pose many environmental problems such as the use of inorganic oxidants (chromates, permanganate and chlorinated oxidants) with high toxicity in organic media and the generation of a large amount of waste. In this work, we report a green approach for the oxidation of benzyl alcohol to benzaldehyde using bimetallic zirconium-nickel loaded on natural phosphate as heterogeneous catalyst with aqueous hydrogen peroxide as green oxidant under solvent-free conditions. The catalyst has been prepared by using a wet impregnation method and characterized by powder XRD and FT-IR studies. Compared to other works in literature, the developed catalyst showed relatively short reaction time (45 min), good yield (93%) and high recyclability without a significant loss in its activity. © 2020 Elsevier Ltd. All rights reserved. 
Zr-Ni/Natural Phosphate; Heterogeneous catalyst; Benzyl alcohol oxidation; Solvent-free; Mild conditions 
Radi S.