Highly oxidation resistant inorganic-porphyrin analog polyoxometalate oxidation catalysts. 2. Catalysis of olefin epoxidation and aliphatic and aromatic hydroxylations starting from .alpha.2-P2W17O61(Mn+.cntdot.Br)(n-11) (Mn+ = Mn3+,Fe3+,Co2+,Ni2+,Cu2+), including quantitative comparisons to metalloporphyrin catalysts

Mansuy, Daniel; Bartoli, J. F.; Battioni, Pierrette; Lyon, David K.; Finke, Richard G.

doi:10.1021/ja00019a019

Cited by 190 publications

(81 citation statements)

References 1 publication

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“…Relatively much attention is paid to epoxidation of limonene because the products are valuable starting materials for the synthesis of fragrances and drugs [4]. The epoxidation reactions are performed using mainly heterogeneous catalysts and hydrogen peroxide as an oxidant [5][6][7][8][9][10][11][12]; however, the use of a homogeneous catalyst was also reported [13]. Dioxygen [14][15][16][17] and tert-butyl hydroperoxide [18][19][20][21] were used as oxidants in epoxidation of limonene as well.…”

Section: Introductionmentioning

confidence: 99%

Iron(II, III)-Catalyzed Oxidation of Limonene by Dioxygen

2007

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Labile iron(II) and iron(III) complexes {[Fe II (bpy) 2 2+ ] solv and [Fe III (bpy) 2 3+] solv } in acetonitrile activate dioxygen for the oxidation of limonene to produce mainly carvone, carveol, limonene oxide, and perillaldehyde. Iron(III) complex is reduced by the substrate to iron(II) one, which activates dioxygen. Probably the catalyst interacts with substrate prior to the oxidation process. Perillaldehyde is likely formed directly from oxidation of methyl group (not via alcohol). However, the aldehyde is also reduced to perillyl alcohol by the reduced form of the catalyst.

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Section: Introductionmentioning

confidence: 99%

Iron(II, III)-Catalyzed Oxidation of Limonene by Dioxygen

2007

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“…The following commercially available reagents were used without further purification: Na 2 HPO 4 , Na 2 WO 4 .2H 2 …”

Section: A Catalysts Preparation and Characterizationmentioning

confidence: 99%

“…4% conversion), at a considerably high temperature (150 ˚C) and pressure (15 bar) [1]. Catalytic oxidation of cyclohexane have been carried out using a variety of oxidants such as iodosylbenzene [2], alkyl hydroperoxides [3], m-chloroperbenzoic acid [4] and oxygen [5]. Molecular oxygen is possibly the best oxidant choice.…”

Section: Introductionmentioning

confidence: 99%

Heterogeneous Catalytic Oxidation of Cyclohexane with H2O2 Catalyzed by Cs- and TBA-salts of Cu- and Mn-Polyoxotungstates on MCM-41

Trakarnpruk¹

2015

IJCEA

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“…It has been also noticed that the Mn ΙΙΙ and Fe ΙΙΙ substituted POMs have shown good catalytic activity in transferring oxygen from idosobenzene to either alkene or alkane [17][18] 22 . The synthesized polyoxometalate was characterized by FTIR and AAS to understand the structure and formula of the compound [23][24] .…”

Section: Introductionmentioning

confidence: 99%

Oxidation of Hydroxylamine by Waugh Type POM, Enneamolybdomanganate(IV) ion (A Kinetic and Mechanistic Study)

Barge¹,

Gokavi²

2017

Orient. J. Chem

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ABSTARCTThe reaction between hydroxyl amine and Waugh-type polyoxometalate, enneamolybdomanganate(ΙV), was investigated under pseudo-first-order condition in aqueous perchloric acid. The product of the reaction was nitrous oxide as determined by studying the stoichiometry which requires one mol of oxidant per mole of hydroxylamine. The rate of reaction increases as hydrogen ion and oxidant, enneamolybdomanganate(ΙV), concentrations increase, while it remains unchanged as the hydroxylamine concentration is altered. The oxidant exists in both protonated and unprotonated form under the reaction conditions and both are active. The hydroxyl amine remains in the protonated form and reacts with the active forms of the oxidant with different rate constants. The proposed mechanism, in accordance with the kinetic results obtained, involves reaction between hydroxyl amine and oxidant in a slow step. The rate law derived as per the proposed mechanism is also verified kinetically. Change in ionic strength and solvent polarity did not affect the rate of the reaction while activation parameters were calculated by studying the reaction at different temperatures

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Cited by 190 publications

References 1 publication

Iron(II, III)-Catalyzed Oxidation of Limonene by Dioxygen

Iron(II, III)-Catalyzed Oxidation of Limonene by Dioxygen

Heterogeneous Catalytic Oxidation of Cyclohexane with H2O2 Catalyzed by Cs- and TBA-salts of Cu- and Mn-Polyoxotungstates on MCM-41

Oxidation of Hydroxylamine by Waugh Type POM, Enneamolybdomanganate(IV) ion (A Kinetic and Mechanistic Study)

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