Cooperative chiral salen TiIV catalyst supported on ionic liquid-functionalized graphene oxide accelerates asymmetric sulfoxidation in water

Multiple chiral salen Ti^IV complexes appended on an IL-functionalized GO surface reinforced intramolecular cooperative catalysis of asymmetric sulfoxidation in water.

Epoxidation using molecular oxygen in flow: facts and questions on the mechanism of the Mukaiyama epoxidation

Mukaiyama reaction was performed G/L continuous-flow microreactor. In less than 5 minutes at room temperature, cyclooctene was efficiently transformed to the corresponding epoxide using O₂ as oxidant and aldehyde as co-reductant.

Synthesis and characterization of a Cu(ii) Schiff base complex immobilized on graphene oxide and its catalytic application in the green synthesis of propargylamines

A Cu(ii) Schiff base complex immobilized on graphene oxide has been synthesized and characterized by FTIR, FT-RAMAN, XRD, UV, TEM, FE-SEM, EDAX, TGA, N₂ adsorption–desorption and AAS analysis.

Co(ii) complexes loaded into metal–organic frameworks as efficient heterogeneous catalysts for aerobic epoxidation of olefins

An efficient cobalt(ii)-anchored Cr-MOF (Cr-MIL-101-NH₂) catalyst, Co(ii)@Cr-MIL-101-P2I, has been successfully synthesized by one-pot modification of the terminal amino group with pyridine-2-aldehyde and anchoring of Co(ii) ions into the mesoporous Cr-MOF support.

Graphene oxide–TiO2 composite: an efficient heterogeneous catalyst for the green synthesis of pyrazoles and pyridines

GO–TiO₂ has been found to be a highly efficient and recyclable heterogeneous catalyst for the synthesis of pyrazoles and pyridines in aqueous medium at room temperature.

Preparation of Schiff base decorated graphene oxide and its application in TPU with enhanced thermal stability

A facile in situ method of synthesis and immobilization of a copper(salen) complex onto graphene oxide (GO) support has been developed.

A synergistic effect of a cobalt Schiff base complex and TiO2 nanoparticles on aerobic olefin epoxidation

A cobalt Schiff base complex and TiO₂ nanoparticles exhibited a synergistic effect on the visible-light photocatalytic activity in the aerobic oxidation of various olefins in the absence of reducing agent.

The advantages of covalently attaching organometallic catalysts to a carbon black support: recyclable Rh(i) complexes that deliver enhanced conversion and product selectivity

A bidentate Rh(i) coordination complex was covalently anchored to a carbon black support. The resultant hybrid catalyst was found to be active for both hydroamination and dihydroalkoxylation reactions and was readily recycled.

Dual catalysis with magnetic chitosan: direct synthesis of cyclic carbonates from olefins with carbon dioxide using isobutyraldehyde as the sacrificial reductant

Magnetic chitosan was further functionalized with (ii) acetylacetonate complex [Co(acac)₂] and quaternary triphenylphosphonium bromide by targeting the –NH₂ and –OH moieties located on the surface of chitosan.

Nanoscaled copper metal-organic framework (MOF) based on carboxylate ligands as an efficient heterogeneous catalyst for aerobic epoxidation of olefins and oxidation of benzylic and allylic alcohols

Aerobic epoxidation of olefins at a mild reaction temperature has been carried out by using nanomorphology of [Cu3(BTC)2] (BTC = 1,3,5-benzenetricarboxylate) as a high-performance catalyst through a simple synthetic strategy. An aromatic carboxylate ligand was employed to furnish a heterogeneous copper catalyst and also serves as the ligand for enhanced catalytic activities in the catalytic reaction. The utilization of a copper metal-organic framework catalyst was further extended to the aerobic oxidation of aromatic alcohols. The shape and size selectivity of the catalyst in olefin epoxidation and alcohol oxidation was investigated. Furthermore, the as-synthesized copper catalyst can be easily recovered and reused several times without leaching of active species or significant loss of activity.