Synthesis and characterization of Cu–N, N′-Dicyclohexylcarbodiimide supported on CMK-3 as a novel, efficient and recoverable nanocatalyst for synthesis of tetrazole, polyhydroquinoline, and sulfoxide derivatives

Green preparation and characterization of AGC-ZM-2022 as a novel mesoporous silica material using palmitic acid as a natural template

“…3a) in the range of 0.9-2, is agreeable with the reported XRD of mesoporous compounds in the literature. [24][25][26][27][28] Due to the high-angle X-ray diffraction (Fig. 3b), there is a wide peak at an angle between 15 and 30, which is attributed to the structure of the mesoporous material.…”

Nanomaterial catalyzed green synthesis of tetrazoles and its derivatives: a review on recent advancements

“…The synthesized catalyst was successfully employed for synthesis of tetrazole derivatives (Table 5, entry 9). 80 A non-corrosive Cu(II) immobilized Fe 3 O 4 @SiO 2 @L-arginine, nano catalyst was developed for synthesis of 5-substituted-1Htetrazoles via cycloaddition reaction of various organic nitriles with sodium azide (Table 5, entry 10). The optimization results with aryl nitrile (1 mmol), NaN 3 (1 mmol) in the presence of Cu(II) immobilized Fe 3 O 4 @SiO 2 @L-arginine catalyst revealed that 1.020 mol% of catalyst gave 95% yield at 120 C in PEG solvent.…”

“…It was reported that 0.9 mol% of this catalyst was sufficient Scheme 8 Preparation of Cu(II)-DCC-CMK-3 nano-catalyst. 80 for 5-substituted-1-H-tetrazole and 0.8 mol% for 1-substituted-1-H-tetrazoles synthesis. It was observed that different aromatic nitriles containing electron-donating and electron-withdrawing groups were successfully employed for tetrazole synthesis with excellent product yields and the substituents on benzonitriles play signicant impact on the reaction time.…”

“…The synthesized catalyst was successfully employed for synthesis of tetrazole derivatives ( Table 5 , entry 9). 80 …”

Magnetization of graphene oxide nanosheets using nickel magnetic nanoparticles as a novel support for the fabrication of copper as a practical, selective, and reusable nanocatalyst in C–C and C–O coupling reactions

“…7,8 Therefore, nanostructures with a high surface area are used to revive the catalytic activity of stabilized species. [9][10][11] For example, magnetic nanoparticles, [11][12][13] polymers, 14 carbon nanotubes, 15 ionic liquids, 16,17 mesoporous materials, [18][19][20] graphene oxide, 5,21 mineral materials, 4,22 metal-organic frameworks (MOFs), 23 and biochar nanoparticles 24 have been used for the fabrication of metallic catalysts. Among them, graphene oxide nanosheets with a high surface area including high density of carbonyl, hydroxyl, epoxide, and carboxylic acid groups on its surface were used as a support for the stabilization of metallic ions.…”