A novel catalyst for alkene epoxidation: a polymer-supported CoIILCl2 {L=2-(alkylthio)-3-phenyl-5-(pyridine-2-ylmethylene)-3,5-dihydro-4H-imidazole-4-one} complex

Synthesis, characterization and cytotoxicity of palladium(II) complex of 3-[(2-hydroxy-benzylidene)-amino]-2-thioxo-imidazolidin-4-one

“…[11][12][13] In the past decades, great efforts have been devoted to introducing thiohydantoins and their derivatives into desirable substrates, such as pharmacophores and synthetic intermediates. [14][15][16][17] Compounds containing the thiohydantoin structural motif have been identified to display a wide range of biological activities. For example, many of them exhibit anticonvulsant, 18 anti-epileptic, 19 antimicrobial, 20 antiviral, 21 antineoplastic, 22 hypolipidemic, 23 antithrombotic, 24 and potential antitumor activities, 25,26 etc.…”

New platinum(II) complexes of cycloalkanespiro-5-(2-thiohydantoins). Synthesis and quantum chemical investigation

“…35 Recently, Beloglazkina et al have obtained a Co(II) complex with 3-phenyl-5-(2-pyridylmethylene)-2-thiohydantoin to use as a catalyst for the epoxidation of alkenes. 39 Singh et al have described complexes of thiohydantoin with Co(II), Ni(II) 40 and Sn(IV), Ti(IV). 41 On the basis of IR data Singh shows that ligand actually coordinates as a monodentate through O-atom in Sn(IV) and Ti(IV) and through S-atom in the Co(II) and Ni(II) complexes.…”

Green oxidation of alkenes in ionic liquid solvent by hydrogen peroxide over high performance Fe(III) Schiff base complexes immobilized on MCM-41

“…Unsupported metal complexes of ßdiketones 15 and salen 16 show low activity and selectivity in epoxidation of olefins in comparison to supported metal complexes. 10,14,[17][18][19][20][21][22][23][24][25] A popular approach for preparation of heterogeneous catalyst is to immobilize the homogeneous catalyst on the support through * For correspondence a surface-bound tether containing a functional group. This methodology has been employed successfully in the functionalization of various traditional types of silica supports.…”