Oxidación Selectiva de Alcohol Bencílico

Una alternativa eficiente en procesos de química fina.

Abstract

MCM-41 nanostructured materials modified with Vanadium, Iron and Cobalt were synthetized and tested in the benzyl alcohol oxidation using H2O2 as oxidant. The catalysts were characterized by XRD, UV-Vis-DR, ICP-OES and N2 adsorption. All the catalysts showed good structural order and high specific areas; the low value corresponding to the Co-M(60) sample could be due to the higher presence of oxide species determined by UV-Vis-DR. The V-M(60) sample showed the best catalytic activity, giving account for the high efficiency of the highly dispersed V cations in the framework which could be considered the active sites for the benzyl alcohol oxidation reaction. Although, the highest TON values were obtained when a substrate/oxidant ratio of 1/1 was used, the selectivity to the desired product decreased notably. Thus, until now, it is considered that the successive additions of oxidant would favor the selective production of benzaldehyde.