Ruthenium complex catalyst system for selective oxidation of cyclohexane to cyclohexanone  by molecular oxygen

Shukla, Ram S.

doi:10.1007/s11144-005-0197-2

Cited by 2 publications

(2 citation statements)

References 11 publications

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“…One consequence of this smaller electron delocalization on binuclear μ-oxo ruthenium compounds is the relatively strong trans-effect exerted by the μ-oxo bridge, which makes this class of compounds more labile than the trinuclear ones. [12][13][14][15][16][17] Binuclear μ-oxo ruthenium compounds are versatile and have been studied for different purposes -as catalysts, [18][19][20][21] as electrode modifiers based on self-assembled monolayers, [22] and as building blocks for constructing bioinspired systems for biological applications, [14,[23][24][25] which is the focus of the present study.…”

Section: Introductionmentioning

confidence: 99%

Interactions with HSA, anticancer and antiallergic activity of binuclear μ‐oxo bridged ruthenium acetate compounds

et al. 2023

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The μ‐oxo bridged ruthenium acetate 1 [Ru2O(CH3COO)2(5‐CH3‐1,10‐phen)2(py)2](PF6)2 (5‐CH3‐1,10‐phen=5‐methyl‐1,10‐phenanthroline; py=pyridine) is presented. Its electronic and infrared spectra, as well as its cyclic voltammograms are all consistent with the proposed structure. Regarding biological properties, we collected data for 1 and its analog [Ru2O(CH3COO)2(1,10‐phen)2(py)2](PF6)2 (2) to infer the role of phenantroline methylation. The HSA fluorescence is quenched by 1 and the presence of variable concentrations of it did not affect the τ1/2 values for the HSA excited state lifetime (mean τ1/2 values=3.56, 3.46, and 3.32 ns at 298, 304, and 310 K respectively). Circular dichroism showed that the HSA α‐helix content decreased only 5 % upon interaction with 1, which formed a ground‐state adduct with HSA, not changing the protein structure to a significant extent. Interaction between 1 and DNA was weak; Benesi‐Hildebrand constants were in the order of 102 M−1. We probed the allergenic potential/antiallergic activity of 1, observing that 200 μM inhibited mast cell degranulation by about 80 %, while cell viability remained unaltered throughout the measurement (2 h). Therefore, 1 has antiallergic potential and is not an allergen. Regarding its anticancer activity, at all the employed concentrations, 1 was more cytotoxic than 2 against B16F10 murine melanoma cancer cells. At 25 μM, 1 reduced cell viability to less than 14 %, while 2 reduced cell viability to only 78 %.

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Section: Introductionmentioning

confidence: 99%

Interactions with HSA, anticancer and antiallergic activity of binuclear μ‐oxo bridged ruthenium acetate compounds

et al. 2023

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“…The selective oxidation of cyclohexane to cyclohexanol and cyclohexanone (the mixture is called “KA oil,” where “K” and “A” represent the ketone and the alcohol, respectively) has important academic value and application prospects, with the main investigation being centered on the sp 3 activation of the C–H bond. 1–4 Currently, KA oil is mainly prepared by a noncatalytic process, which suffers from a low conversion rate, poor selectivity, high energy consumption, high environmental treatment costs, and so on. 5 Therefore, the development of a mild and efficient catalytic oxidation system for this process is highly promising.…”

Section: Introductionmentioning

confidence: 99%

A one-step method for preparing Cr-doped SiO₂: An efficient catalyst for the direct oxidation of cyclohexane to ketone-alcohol oil

Wang

Xue

et al. 2022

Journal of Chemical Research

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A series of heterogeneous catalysts with Cr as an active component is prepared by an innovative in situ coprecipitation method. The prepared Cr/SiO2 catalyst has high catalytic activity, selectivity, and stability in the conversion of cyclohexane into ketone-alcohol oil using H2O2 as the oxidant under mild conditions, resulting in 54.59% cyclohexane conversion and 90.01% ketone-alcohol oil selectivity. The physical and chemical properties of the prepared materials are studied by X-ray diffraction, Fourier transform infrared, X-ray photoelectron spectroscopy, scanning electron microscopy, transmission electron microscopy, and nitrogen adsorption-desorption analysis (BET). The excellent performance of the Cr/SiO2-400 catalyst is due to the increase of low-valence chromium species and the intimate interaction between SiO2 and CrOx. In addition, the catalyst was easy to separate and maintained good catalytic activity even after four runs.

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Ruthenium complex catalyst system for selective oxidation of cyclohexane to cyclohexanone by molecular oxygen

Cited by 2 publications

References 11 publications

Interactions with HSA, anticancer and antiallergic activity of binuclear μ‐oxo bridged ruthenium acetate compounds

Interactions with HSA, anticancer and antiallergic activity of binuclear μ‐oxo bridged ruthenium acetate compounds

A one-step method for preparing Cr-doped SiO₂: An efficient catalyst for the direct oxidation of cyclohexane to ketone-alcohol oil

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Ruthenium complex catalyst system for selective oxidation of cyclohexane to cyclohexanone by molecular oxygen

Cited by 2 publications

References 11 publications

Interactions with HSA, anticancer and antiallergic activity of binuclear μ‐oxo bridged ruthenium acetate compounds

Interactions with HSA, anticancer and antiallergic activity of binuclear μ‐oxo bridged ruthenium acetate compounds

A one-step method for preparing Cr-doped SiO2: An efficient catalyst for the direct oxidation of cyclohexane to ketone-alcohol oil

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A one-step method for preparing Cr-doped SiO₂: An efficient catalyst for the direct oxidation of cyclohexane to ketone-alcohol oil