Sequential oxidation and condensation of alcohols to benzimidazoles/benzodiazepines by MoO3–SiO2 as a heterogeneous bifunctional catalyst

Green synthesis of 1,4-benzodiazepines over La2O3 and La(OH)3 catalysts: possibility of Langmuir–Hinshelwood adsorption

“…[23][24][25] Synthesis of these biologically relevant benzodiazepine derivatives was achieved through ionic liquid catalysis, 26 solid phase synthesis, 5,27 organometallic reagents [28][29][30] and by other methods. 31 Previous examples of heterogeneous catalysts utilized for the synthesis of substituted benzodiazepines include ZnS nanoparticles, chitosan supported Fe 3 O 4 nanoparticulate materials, 32 silver salts of silico-tungstic acid, Sn(HPO 4 ) 2 $H 2 O, MoO 3 -SiO 2 bifunctional catalysts, mixed-metal oxides [33][34][35][36][37][38][39] etc. Solid-base catalysts involving alkaline earth metal oxides, alkali doped materials, transition metal oxides and hydrotalciates were also widely utilized for organic reactions.…”

Facile and low cost oxidative conversion of MoS2 in α-MoO3: Synthesis, characterization and application

“…Being a versatile material and widely used in industry, the molybdenum trioxide (MoO3) has been subject of many studies over the past decade. An important layered oxide, MoO3 presents attractive multifunctional properties, and have attracted considerable interest in many different applications, such as oxidative alcohols catalysis [1] and degradative dyes photocatalysis [2], also in batteries with other ions [3,4], sensors gas [5] and solar cells [6].…”

Molybdenum Oxide Supported on Silica (MoO /SiO ): An Efficient and Reusable Catalyst for the Synthesis of 1,8-dioxodecahydroacridines Under Solvent-free Conditions

“…These images demonstrate that the molybdenum oxide is well supported and distributed on silica. Comparison of these two images shows that MoO 3 was strongly adsorbed on the surface of SiO 2 and no leaching occurred during the reaction [34]. Moreover, the energy dispersive spectrum (EDS) (Fig.…”