Selective and efficient C–H oxidation of alkanes with hydrogen peroxide catalyzed by a manganese(III) Schiff base complex

Mardani, Hamid Reza; Golchoubian, Hamid

doi:10.1016/j.molcata.2006.06.029

Cited by 51 publications

(19 citation statements)

References 36 publications

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“…Much later, complex 13 was shown to catalyze benzylic oxidations with unexpectedly high efficiency (up to several thousand TN) in acetonitrile at room temperature, without any co-catalysts, affording ketones with high selectivity (Table 2, entry 5) [78]. The reaction required a high excess of H2O2 (10-20 mol per mol of substrate).…”

Section: C-h Oxidations With H2o2 In the Presence Of Mn Complexes Witmentioning

confidence: 99%

Direct Selective Oxidative Functionalization of C–H Bonds with H2O2: Mn-Aminopyridine Complexes Challenge the Dominance of Non-Heme Fe Catalysts

2016

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Non-heme iron(II) complexes are widespread synthetic enzyme models, capable of conducting selective C-H oxidation with H 2 O 2 in the presence of carboxylic acid additives. In the last years, structurally similar manganese(II) complexes have been shown to catalyze C-H oxidation with similarly high selectivity, and with much higher efficiency. In this mini-review, recent catalytic and mechanistic data on the selective C-H oxygenations with H 2 O 2 in the presence of manganese complexes are overviewed. A distinctive feature of catalyst systems of the type Mn complex/H 2 O 2 /carboxylic is the existence of two alternative reaction pathways (as found for the oxidation of cumenes), one leading to the formation of alcohol, and the other to ester. The mechanisms of formation of the alcohol and the ester are briefly discussed.

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Section: C-h Oxidations With H2o2 In the Presence Of Mn Complexes Witmentioning

confidence: 99%

Direct Selective Oxidative Functionalization of C–H Bonds with H2O2: Mn-Aminopyridine Complexes Challenge the Dominance of Non-Heme Fe Catalysts

2016

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“…Among various transition metals, manganese is probably the most versatile in promoting or catalyzing oxidation reactions [59][60][61][62][63][64][65]. Various supported manganese complexes have been prepared and used for various oxidation reactions [66][67][68][69][70][71].…”

Section: Introductionmentioning

confidence: 99%

Nanosized Mn(acac)3 Anchored on Amino Functionalized Silica for the Selective Oxidative Synthesis of 2-arylbenzimidazoles, 2-arylbenzothiazoles and Aerobic Oxidation of Benzoins in Water

Sodhi

Paul

2011

Catal Lett

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Silica functionalized Mn(acac) 3 was prepared and employed for the one-pot oxidative synthesis of 2-arylbenzimidazoles, 2-arylbenzothiazoles; and oxidation of benzoins to benzils under air atmosphere using water as the reaction medium. Environmentally friendly procedure, chemoselectivity and excellent yields are main advantages of this procedure. In all the cases, the catalyst was found to be highly active and selective; passes hot filtration test successfully; and could be recycled several times with a slight loss of activity.

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“…Air oxidation of diphenylmethane was carried out by Caps et al [15] over Mn modified MCM-41 with low yield to benzophenone. Usage of various complexes has been reported for the oxidation of diphenylmethane [16]. Wang and coworkers used cobalt doped MCM-41 and cobalt doped mesoporous TiO 2 for oxidation of diphenylmethane to benzophenone [17,18].…”

Section: Introductionmentioning

confidence: 99%

Catalytic Activity of Cobalt Containing MCM-41 and HMS in Liquid Phase Oxidation of Diphenylmethane

2009

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Cobalt containing MCM-41 and HMS were synthesized by direct hydrothermal (DHT) and post synthesis methods (grafting and immobilization). The catalytic activity of these materials was investigated in the liquid phase oxidation of diphenylmethane at 80°C with TBHP (70 wt%) as oxidant. Comparative study of cobalt containing MCM-41 and HMS was carried out to reveal the catalytic performance of framework, extraframework and immobilized cobalt species. The role of the solvent in the performance of catalyst was examined with different polar and non polar solvents. Oxidation of diphenylmethane in solvent free media (under similar reaction conditions) shows formation of hydroxy derivatives of benzophenone in addition to main product (benzophenone). Hundred percent selectivity to benzophenone was obtained when the reaction was carried out in solvent.

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Selective and efficient C–H oxidation of alkanes with hydrogen peroxide catalyzed by a manganese(III) Schiff base complex

Cited by 51 publications

References 36 publications

Direct Selective Oxidative Functionalization of C–H Bonds with H2O2: Mn-Aminopyridine Complexes Challenge the Dominance of Non-Heme Fe Catalysts

Direct Selective Oxidative Functionalization of C–H Bonds with H2O2: Mn-Aminopyridine Complexes Challenge the Dominance of Non-Heme Fe Catalysts

Nanosized Mn(acac)3 Anchored on Amino Functionalized Silica for the Selective Oxidative Synthesis of 2-arylbenzimidazoles, 2-arylbenzothiazoles and Aerobic Oxidation of Benzoins in Water

Catalytic Activity of Cobalt Containing MCM-41 and HMS in Liquid Phase Oxidation of Diphenylmethane

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