MNP–cellulose–OSO₃H as an efficient and biodegradable heterogeneous catalyst for green synthesis of trisubstituted imidazoles

Abstract

Cellulose is an eco-friendly, efficient, and suitable substrate for use as a coating material and support in the preparation of catalysts.

Synthesis of Nitrogen- and Oxygen-Containing Heterocycles Catalysed by Metal Nanoparticles Reported in 2022

“…The selective transfer hydrogenation of 44 to give 45 Saeedi and Rahmati published the synthesis of biodegradable heterogeneous catalysts, MNP-cellulose-OSO 3 H by functionalisation of Fe 3 O 4 MNPs with chlorosulfonic acid. 80 The synthesis of trisubstituted imidazoles (96) was attained from benzil or 9,10-phenanthrenoquinone (94), substituted benzene carbaldehyde (47) and ammonium acetate (95) in EtOH solvent at 80 °C for 2 h in the catalytic presence of MNP-cellulose-OSO 3 H (Scheme 27). The catalysts were found to possess sufficient performance and efficient reusability in up to four consecutive cycles.…”

A Novel Recyclable Magnetic Nano-Catalyst for Fenton-Photodegradation of Methyl Orange and Imidazole Derivatives Catalytic Synthesis

“…This leads to satisfactory durability and recovery properties of the catalyst. Biopolymers like chloro-deoxycellulose (CDC), alginate, cellulose, and chitosan can facilitate catalysis and offer numerous advantages, including low toxicity, cost-effectiveness, as well as high biocompatibility and biodegradability [ 21 ]. Recently, several researchers have addressed the advanced oxidation of bio-nanocomposite magnetic cellulosic fibres in aqueous solution using heterogeneous Fenton-like oxidation processes [ 22 , 23 ].…”

Preparation and characterization of theh-BN/Fe3O4/APTES-AMF/CuIInanocomposite as a new and efficient catalyst for the one-pot three-component synthesis of 2-amino-4-aryl(or heteroaryl)-7,7-dimethyl-5-oxo-5,6,7,8-tetrahydro-4H-chromene-3-carbonitriles

“…The multicomponent reactions have been recognized as a potent tool in synthetic organic chemistry as these reactions offer several fascinating advantages over multi-step processes such as minimal waste generation, less energy consumption, high atom economy, and time efficiency, thus complying with the goals of green and sustainable chemistry. [26][27][28][29][30][31][32][33] Additionally, in view of escalating environmental degradation due to the release of volatile and hazardous organic solvents, the use of green solvents, water in particular, is the pressing need to adopt benign synthetic routes in organic transformations. [34][35][36] 2-Amino-3-cyano-4H-chromene synthesized by multicomponent reactions of aryl aldehyde, dimedone, and malononitrile is one of the important structures in heterocyclic chemistry that has drawn considerable interest worldwide due to their favourable biological properties, such as anticancer, antibacterial, antimicrobial, and antiallergic (Fig.…”