Sodium bicarbonate assisted oxidation, by H2O2, of styrene and cyclohexene using polymer grafted dioxidomolybdenum(VI) complex as a catalyst

Maurya, Mannar R.; Kumar, Naresh

doi:10.1016/j.molcata.2015.06.002

Cited by 17 publications

(1 citation statement)

References 42 publications

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“…, obtained by the condensation of equimolar amounts of orthohydroxy acetophenone (hap) and indole-3-acetic hydrazide (iah), gave mainly styrene oxide as a major product. 201 In a report on the catalytic properties of symmetrical and unsymmetrical imidazolium-containing manganese porphyrins in hydrogen peroxide oxidation of styrene the high conversion of the substrate (80-100%) and high selectivity in forming the epoxide (above 80%) was noted. 148 Other reports on the epoxidation of styrene have been discussed in Sections 2.1 28,33 and 3.3.1 143,146,150,163,164,166,167,168 In most cases, the unstable oxirane ring of epoxides immediately undergoes subsequent reactions, and various compounds, shown in Scheme 22 are formed as final products.…”

Section: -95%mentioning

confidence: 99%

Synthetic utility of metal catalyzed hydrogen peroxide oxidation of C-H, C-C and C=C bonds in alkanes, arenes and alkenes: Recent advances

Wójtowicz‐Młochowska¹

2016

Arkivoc

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This review presents the current state of the art of homogenic and heterogenic oxygen transfer processes using hydrogen peroxide as oxygen source and compounds and complexes of tranisition metals, Fe, V, Cu, Mn, Rh, Mo, Ti, W, Pd, Os, Zr, Cr, Nb, Co, as the catalysts. Based on the reactions of C-H, C-C and C=C bonds in alkanes, arenes and alkenes various mechanisms of the oxygen-transfer processes are discussed and new methodologies for synthesis of alcohols, phenols, aldehydes, ketones, epoxides and carboxylic acids are indicated.

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Section: -95%mentioning

confidence: 99%

Synthetic utility of metal catalyzed hydrogen peroxide oxidation of C-H, C-C and C=C bonds in alkanes, arenes and alkenes: Recent advances

Wójtowicz‐Młochowska¹

2016

Arkivoc

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Substituent Controlled Synthesis of Dioxidomolybdenum(VI) Complexes of N,N,N’,N’‐Tetrakis(2‐Hydroxyl‐3,5‐Disubstitutedbenzyl)‐1,2‐Diaminoethane, Their Trans‐Metalation to Oxidovanadium(V) Complexes and Biocatalytic Applications

Maurya

Kumar

et al. 2022

Eur J Inorg Chem

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The reaction of [MoVIO2(acac)2] (acac=acetylacetonate anion) with N,N,N’,N’‐tetrakis(2‐hydroxy‐3,5‐disubstitutedbenzyl)‐1,2‐diaminoethane having different 3,5‐disubstituents on the phenyl ring in 1 : 1 molar ratio in MeOH results in the formation of two different types of substituent controlled mononuclear complexes. Ligands having 3,5‐di‐t‐butyl substituents [H4en(3,5‐dtbb)4, I] and 3‐t‐butyl‐5‐methyl substituents [H4en(3‐tb,5‐mb)4, II], result in the formation of complexes, [{MoVIO2(MeOH)}H2en(3,5‐dtbb)4] (1) and [{MoVIO2(MeOH)}H2en(3‐tb,5‐mb)4] (2), respectively. In these complexes ligands behave as a bis(dibasic ONO) donor and coordinate to only one side of the ONO functionalities. On the contrary, ligands having 3,5‐dimethyl substituents [H4en(3,5‐dmb)4, III] and 3,5‐dichloro substituents [H4en(3,5‐dcb)4, IV] facilitate mononuclear α‐cis, symmetric complexes, [{MoVIO2}H2en(3,5‐dmb)4] (3) and [{MoVIO2}H2en(3,5‐dcb)4] (4), respectively. Here ligands behave as a dibasic ONNO tetradentate. Further reaction of complexes 1 and 2 with equimolar amount of [MoVIO2(acac)2] in DMF‐MeOH gives homo‐binuclear complexes, [{MoVIO2(DMF)}2en(3,5‐dtbb)4] (5) and [{MoVIO2(DMF)}2en(3‐tb,5‐mb)4] (6), respectively. Reaction of VVO(OEt)3 with complexes 1–4 in refluxing EtOH caused the displacement of cis‐[MoVIO2] group by [VVO] along with the breaking of one of the arms of ligand and the formation of oxidovanadium(V) complexes, [{VVO}en(3,5‐dtbb)3] (7), [{VVO}en(3‐tb,5‐mb)3] (8), [{VVO}en(3,5‐dmb)3] (9), and [{VVO}en(3,5‐dcb)3] (10). This is an example of trans‐metalation. Complexes [{VVO}Hen(3,5‐dmb)4] (11) and [{VVO}Hen(3,5‐dcb)4] (12) upholding all four arms have also been obtained by direct reaction of ligands III and IV, respectively, with VVO(OEt)3. Biomimetic catalytic activity similar to enzymes haloperoxidases was performed with thymol and other phenol derivatives and all these complexes serve as excellent functional models.

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Dioxidomolybdenum(VI) Complex Supported on Chloromethylated Polymer and Its Catalytic Role in Peroxidase Mimicking Activity Towards Oxidation of Dopamine

Maurya,

Patter,

Chauhan

et al. 2023

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Sodium bicarbonate assisted oxidation, by H2O2, of styrene and cyclohexene using polymer grafted dioxidomolybdenum(VI) complex as a catalyst

Cited by 17 publications

References 42 publications

Synthetic utility of metal catalyzed hydrogen peroxide oxidation of C-H, C-C and C=C bonds in alkanes, arenes and alkenes: Recent advances

Synthetic utility of metal catalyzed hydrogen peroxide oxidation of C-H, C-C and C=C bonds in alkanes, arenes and alkenes: Recent advances

Substituent Controlled Synthesis of Dioxidomolybdenum(VI) Complexes of N,N,N’,N’‐Tetrakis(2‐Hydroxyl‐3,5‐Disubstitutedbenzyl)‐1,2‐Diaminoethane, Their Trans‐Metalation to Oxidovanadium(V) Complexes and Biocatalytic Applications

Dioxidomolybdenum(VI) Complex Supported on Chloromethylated Polymer and Its Catalytic Role in Peroxidase Mimicking Activity Towards Oxidation of Dopamine

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