Bleach catalysis in aqueous medium by iron(III)-isoindoline complexes and hydrogen peroxide

Meena, Bashdar I.; Lakk-Bogáth, Dóra; Keszei, Soma; Kaizer, József

doi:10.5802/crchim.112

Cited by 2 publications

(1 citation statement)

References 45 publications

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“…[1][2][3][4][5][6] H 2 O 2 is a useful oxidizing agent in oxidation reactions with wide applications; however, these reactions require high temperatures (90-100 1C) and strong basic conditions (pH 4 11). 7,8 To activate H 2 O 2 by disproportionation for reducing the reaction temperatures and accelerating the reaction kinetics, transition metal catalysts are increasingly used to improve the dye degradation properties of H 2 O 2 at lower temperatures. 9 Transition metal catalysts are key components in these catalytic oxidation processes; however, the high toxicity of these catalysts is a major threat to human health and the environment.…”

Section: Introductionmentioning

confidence: 99%

Catalytic investigation of hyaluronic acid-stabilized Ag nanoparticles as non-toxic nanocatalysts in the oxidation of morin

Yilmaz,

Ozsamur,

Erbas-Cakmak

2024

New J. Chem.

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Section: Introductionmentioning

confidence: 99%

Catalytic investigation of hyaluronic acid-stabilized Ag nanoparticles as non-toxic nanocatalysts in the oxidation of morin

Yilmaz,

Ozsamur,

Erbas-Cakmak

2024

New J. Chem.

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Oxidative N-Dealkylation of N,N-Dimethylanilines by Non-Heme Manganese Catalysts

et al. 2023

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Non-heme manganese(II) complexes [(IndH)MnIICl2] (1) and [(N4Py*)MnII(CH3CN)](ClO4)2 (2) with tridentate isoindoline and pentadentate polypyridyl ligands (IndH = 1,3-bis(2′-pyridylimino)isoindoline; N4Py* = N,N-bis(2-pyridylmethyl)-1,2- di(2-pyridyl)ethylamine) proved to be suitable to catalyze the oxidative demethylation of N,N-dimethylaniline (DMA) with various oxidants such as tert-butyl hydroperoxide (TBHP), peracetic acid (PAA), and meta-chloroperoxybenzoic acid (mCPBA), resulting N-methylaniline (MA) as a main product with N-methylformanilide (MFA) as a result of a free-radical chain process under air. The effect of electron-donating and electron-withdrawing substituents on the aromatic ring on the relative reactivity of the substrates and on the product composition (MA/MFA) was also studied and showed a significant impact on the catalytic N-demethylation reaction. Based on the Hammett correlation with ρ = −0.38 (PAA), −0.45 (mCPBA), and −0.63 (TBHP) for 1 and ρ = −0.38 (PAA) and −0.37 (mCPBA) for 2, an electrophilic intermediate is suggested as the key oxidant. Furthermore, the spectral investigation (UV-Vis) resulted in direct evidence for the formation of a high-valent oxomanganese(IV) and a transient radical cation intermediate, p-Me-DMA•+, suggesting that the initial step in the manganese-catalyzed oxidations is a fast electron-transfer between the amine and the high valent oxometal species. The mechanisms of the subsequent steps are discussed.

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Bleach catalysis in aqueous medium by iron(III)-isoindoline complexes and hydrogen peroxide

Abstract: Bleach catalysis in aqueous medium by iron(III)-isoindoline complexes and hydrogen peroxide

Cited by 2 publications

References 45 publications

Catalytic investigation of hyaluronic acid-stabilized Ag nanoparticles as non-toxic nanocatalysts in the oxidation of morin

Catalytic investigation of hyaluronic acid-stabilized Ag nanoparticles as non-toxic nanocatalysts in the oxidation of morin

Oxidative N-Dealkylation of N,N-Dimethylanilines by Non-Heme Manganese Catalysts

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