Synthesis of novel NO type bis(diazoimine)–metal complexes supported on mesoporous silica: Microwave assisted catalytic oxidation of cyclohexane, cyclooctane, cyclohexene and styrene

Uruş, Serhan; Adiguzel, H.I.; İncesu, Mahmut

doi:10.1016/j.cej.2016.03.101

Cited by 17 publications

(6 citation statements)

References 41 publications

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“…On the other hand, the proposed tetrahedral structure of NiH 2 ID of para‐magnetism with four coordination number explains its sufficient catalytic potential for the oxidation processes. Accordingly, the catalytic activity of Ni‐octahedral complexes is lower than that of tetrahedral complexes due to the steric demand and availability of free coordination sites in tetrahedral geometry . Therefore, NiH 2 ID is an effective catalyst in the redox processes of cis ‐cyclooctene, benzyl alcohol and thiophene, as observed in Table .…”

Section: Resultsmentioning

confidence: 99%

Catalytic activity of nickel(II), copper(II) and oxovanadium(II)‐dihydroindolone complexes towards homogeneous oxidation reactions

Adam

2018

Applied Organom Chemis

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Three novel paramagnetic metal complexes (MH 2 ID) of Ni 2+ , Cu 2+ and VO 2+ ions with 3-hydroxy-3,3'-biindoline-2,2'-dione (dihydroindolone, H 4 ID) were synthesized and characterized by different spectroscopic methods. The ligand (H 4 ID) was synthesized via homocoupling reaction of isatin in presence of phenylalanine in methanol. Complexation of low valent Ni 2+ , Cu 2+ ions and high valent VO 2+ ions with H 4 ID carried out in 1: 2 molar ratios. A comparison in the catalytic potential of paramagnetic complexes of low and high valent metal ion was explored in the oxidation processes of cis-cyclooctene, benzyl alcohol and thiophene by an aqueous H 2 O 2 , as a green terminal oxidant, in the presence and absence of acetonitrile, as an organic solvent, at 85°C. NiH 2 ID, CuH 2 ID and VOH 2 ID show good catalytic activity, i.e. good chemoand regioselectivity. VOH 2 ID has the highest catalytic potential compared to both Ni 2+and Cu 2+ -species in the same homogenous aerobic atmosphere.Catalytic oxidation of other alkenes and alcohols was also studied using NiH 2 ID, CuH 2 ID or VOH 2 ID as a pre-catalyst by an aqueous H 2 O 2 . A mechanistic pathway for those oxidation processes was proposed.

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Section: Resultsmentioning

confidence: 99%

Catalytic activity of nickel(II), copper(II) and oxovanadium(II)‐dihydroindolone complexes towards homogeneous oxidation reactions

Adam

2018

Applied Organom Chemis

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“…Hydrotalcite-and dendrimer-supported Os catalysts were also developed [69][70][71][72]. Besides the above examples, other transition metals, such as Mo [73], Cu [74][75][76], Ni [77], Bi [78,79], Ti [80], and rare earth metals [81][82][83], could also catalyze the oxidation reactions of cyclohexene with H2O2 as the oxidant.…”

Section: Oxidation Using H2o2mentioning

confidence: 99%

Recent advances on controllable and selective catalytic oxidation of cyclohexene

Cao

Zhu

Yang

et al. 2018

Chinese Journal of Catalysis

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“…This compound is more activity and less toxic antimicrobial agents result to the increase in resistance to the available antimicrobial drugs [1]. Azoschiff base compounds are famous for exhibit the wide range of applications in antimicrobial, pharmaceutical, industrial and analytical reagents uses [2,3]. These compounds are also a kind of multipurpose ligands in coordination chemistry [4][5][6].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, Spectral and Biological Studies of Ni(II), Pd(II), and Pt(IV) Complexes with New Heterocyclic ligand Derived from Azo-Schiff Bases Dye

Al-Adilee¹,

Dakheel²

2018

Eurasian J Anal Chem

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New heterocyclic azo-schiff base dye (L2) have been synthesized from a reaction of 4-(dimethylamino)benzaldehyde with (E)-5-((1H-benzo[d]imidazol-2-yl) diazenyl) -2amine-4,6-dimethylpyridin (L1) . A new class of Ni(II), Pd(II), and Pt(IV) complexes of azo-schiff base of the type [Ni(L2)2Cl2], [Pd(L2) Cl2] , and [Pt-2amine-4,6-dimethylpyridin. Both ligand and its metal complexes were characterized by the spectroscopic and analytical methods such as mass spectral, 1 H-NMR, FT-IR, UV-Visb.,X-ray, TGA and SEM, elemental analysis, molar conductance measurements and magnetic susceptibility., spectral studies suggest the mole ratio [M:L] was [1:2] for Ni(II) and Pt(IV) metal ions, but [1:1] for Pd(II) metal ion. The structures of theses complexes were elucidated on the basis of different techniques suggest the structures of the prepared metal complexes octahedral geometry for the Ni(II) and Pt(IV) complexes and square planar geometry for the Pd(II) complex. The antibacterial activity of the ligand and prepared metal complexes was also studied against gram positive Staphylococcus aureus and gram negative bacteria Escherichia coli, the antifungal activity of the azo-schiff base and metal complexes against the fungi Alternaria. It is found that some of the complexes are quite effective against fungi Alternaria. In this study the cytotoxicity of Pd(II)-complex on human (PC3) cancer and normal cells were studied using MTT assay. Pd(II)-complex showed selective cytotoxicity against cancer cell line with IC50 = 450 μg/ml, while it was very safe on normal cells line with IC50 = 14554885 μg /ml, respectively for human cells .The results indicate undoubtedly the possibility of using them as antitumor drugs in the field of medicine and Pharmacy against prostate cancer.

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Synthesis of novel NO type bis(diazoimine)–metal complexes supported on mesoporous silica: Microwave assisted catalytic oxidation of cyclohexane, cyclooctane, cyclohexene and styrene

Cited by 17 publications

References 41 publications

Catalytic activity of nickel(II), copper(II) and oxovanadium(II)‐dihydroindolone complexes towards homogeneous oxidation reactions

Catalytic activity of nickel(II), copper(II) and oxovanadium(II)‐dihydroindolone complexes towards homogeneous oxidation reactions

Recent advances on controllable and selective catalytic oxidation of cyclohexene

Synthesis, Spectral and Biological Studies of Ni(II), Pd(II), and Pt(IV) Complexes with New Heterocyclic ligand Derived from Azo-Schiff Bases Dye

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