V₂O₅@TiO₂ Catalyzed Green and Selective Oxidation of Alcohols, Alkylbenzenes and Styrenes to Carbonyls

Abstract

The versatile application of different functional groups such as alcohols (1° and 2°), alkyl arenes, and (aryl)olefins to construct carbon‐oxygen bond via oxidation is an area of intense research. Here, we report a reusable heterogeneous V2O5@TiO2 catalyzed selective oxidation of various functionalities utilizing different mild and eco‐compatible oxidants under greener reaction conditions. The method was successfully applied for the alcohol oxidation, oxidative scission of styrenes, and benzylic C−H oxidation to their corresponding aldehydes and ketones. The utilization of mild and eco‐friendly oxidizing reagents such as K2S2O8, H2O2 (30 % aq.), TBHP (70 % aq.), broad substrate scope, gram‐scale synthesis, and catalyst recyclability are notable features of the developed protocol.

Photocatalytic (V2O5/TiO2) Blue LED Mediated Selective Oxidation of Alcohols, Styrene to Aldehydes, and Oxygenation of Alkyl‐Benzene to Ketones

“…The C30 catalyst produces the maximum yield of all catalysts and completes the reaction in 15–30 minutes. However, without the Blue LED reaction, it can take more than 4 hours, as previously reported [20b] . Furthermore, the reaction does not occur in the absence of an oxidant (Table 2, entry 4) and a catalyst (Table 2, entry 5).…”

Solvothermal synthesis of VO2 nanoparticles with locally patched V2O5 surface layer and their morphology-dependent catalytic properties for the oxidation of alcohols

“…To confirm that enhanced catalytic activity is related to VO 2 nanomaterials with traces of V 2 O 5 surface patches (VO 2 /V 2 O 5 hybrid) and not just due to the surface V 2 O 5 layer, we provide a comparison based on previous reports. [81][82][83][84][85][86] (Table S1 †). The results in Table S1 † show that, depending on their morphology, VO 2 nanomaterials with patches of a V 2 O 5 surface layer exhibit better catalytic activity than pure V 2 O 5 nanoparticles as well as V 2 O 5 nanoparticles on different support surfaces.…”

A Bimetallic Porphyrin Metal Organic Framework as Multifunctional Catalysts for CO2 Cycloaddition and Alkyne Hydration

“…Preparation of Co‐TCPP, N 2 and CO 2 adsorption‐desorption curves, XPS of Bi−MOF−Co and Bi−MOF, Thermogravimetric analysis, EDX, ICP‐MS, Supplemental experiments and NMR data provided in Supporting Information. Additional references cited within the Supporting Information [56–64] …”