Results 251 to 260 of about 111,400 (297)
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Aerobic Oxidations Catalyzed by Chromium Corroles
Journal of the American Chemical Society, 2003Oxochromium(V) complexes of 5,10,15-tris(pentafluorophenyl)corrole and brominated derivatives oxygenate substrates (triphenylphosphine and norbornene) with concomitant production of chromium(III). Regeneration of CrVO by reaction of dioxygen with CrIII completes an aerobic catalytic cycle, with very large solvent effects; in acetonitrile, rapid initial
Mahammed, Atif +3 more
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Kinetics of Aerobic Oxidation of Ascorbic Acid
Journal of Pharmaceutical Sciences, 1972Abstract The pH‐log rate profile of the rate of disappearance of ascorbic acid from an aqueous solution under aerobic conditions was determined at 67° in a pH range of 3.52 to 7.22, ionic strength 0.4. The profile shows a maximum near pKa 1 of ascorbic acid. The aerobic rate shows buffer catalysis in the pH range studied.
S M, Blaug, B, Hajratwala
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Controlling the Catalytic Aerobic Oxidation of Phenols
Journal of the American Chemical Society, 2014The oxidation of phenols is the subject of extensive investigation, but there are few catalytic aerobic examples that are chemo- and regioselective. Here we describe conditions for the ortho-oxygenation or oxidative coupling of phenols under copper (Cu)-catalyzed aerobic conditions that give rise to ortho-quinones, biphenols or benzoxepines.
Kenneth Virgel N, Esguerra +3 more
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Recent developments in the aerobic oxidation of alcohols
Tetrahedron, 2004AbstractFor Abstract see ChemInform Abstract in Full Text.
Bi‐Zeng Zhan, Alison Thompson
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Aerobic Oxidation Catalysis by a Molecular Barium Vanadium Oxide
Chemistry – A European Journal, 2018AbstractAerobic catalytic oxidations are promising routes to replace environmentally harmful oxidants with O2 in organic syntheses. Here, we report a molecular barium vanadium oxide, [Ba4(dmso)14V14O38(NO3)] (={Ba4V14}) as viable homogeneous catalyst for a series of oxidation reactions in N,N‐dimethyl formamide solution under oxygen (8 bar).
Manuel Lechner +4 more
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A Nanoplatinum Catalyst for Aerobic Oxidation of Alcohols in Water
Angewandte Chemie, 2007AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Yoichi M A, Yamada +3 more
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Developments in the Aerobic Oxidation of Amines
ACS Catalysis, 2012The oxidative upgrading of amines offers great opportunities for the sustainable production of key N-containing building-blocks for the modern chemical industry. Compared to other oxyfunctionalizations, and despite their potential, amine oxidation reactions are barely explored in the literature.
Schümperli, Martin T. +2 more
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Oxidative stress: the paradox of aerobic life
Biochemical Society Symposia, 1995The paradox of aerobic life, or the 'Oxygen Paradox', is that higher eukaryotic aerobic organisms cannot exist without oxygen, yet oxygen is inherently dangerous to their existence. This 'dark side' of oxygen relates directly to the fact that each oxygen atom has one unpaired electron in its outer valence shell, and molecular oxygen has two unpaired ...
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Aerobic Oxidations Catalyzed by Polyoxometalates
ChemInform, 2003AbstractFor Abstract see ChemInform Abstract in Full Text.
A. M. Khenkin +4 more
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Industrial Aerobic Oxidation of Hydrocarbons
2020In this chapter, two industrial processes of gas-phase, hydrocarbon catalytic oxidation are examined: (a) the oxychlorination of ethylene to 1,2-dichloroethane; and (b) the oxidation of n-butane to maleic anhydride. In the former case, the use of ethane as an alternative reactant has been studied, still without success, whereas in the latter case the ...
F. Cavani, T. Tabanelli
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