Results 121 to 130 of about 2,211 (175)

Critical Role of Semiquinones in Reductive Dehalogenation

Environmental Science & Technology, 2023
Quinones and products of their redox reactions (hydroquinones and semiquinones) have been suggested as important players in the reductive dehalogenation of organohalogens mediated by natural and pyrogenic organic matter, although based on limited direct evidence. This study focused on the reductive dehalogenation of a model organohalogen (triclosan) by
Srinidhi Lokesh, Myron L. Lard, Robert L. Cook, Yu Yang   +3 more
openaire   +2 more sources

Biochemistry of Catabolic Reductive Dehalogenation

Annual Review of Biochemistry, 2017
A wide range of phylogenetically diverse microorganisms couple the reductive dehalogenation of organohalides to energy conservation. Key enzymes of such anaerobic catabolic pathways are corrinoid and Fe–S cluster–containing, membrane-associated reductive dehalogenases.
Maeva, Fincker, Alfred M, Spormann
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The stereochemistry of reductive dehalogenation

Tetrahedron, 1968
Abstract The stereochemistry of reductive dehalogenation has been examined employing three representative reducing agents—zinc and acetic acid, chromous acetate, and catalytic hydrogenation over Pd C. Chromous acetate and zinc and acetic acid reduce, in greater than 70% yield, just the chlorine atom anti to the double bond in the title compound ...
K.L. Williamson, Y. Fang Li Hsu, E.I. Young   +2 more
openaire   +1 more source

Reductive Dehalogenation – Challenges of Perfluorinated Organics

Journal of Photocatalysis, 2021
: In this mini-review, the problem of effective elimination of perfluorinated organic micropollutants from aquatic environment has been touched. The extraordinary chemical stability of common perfluorinated organic surfactants results in unsatisfactory efficiency of conventional treatment processes, which opens perspectives for photocatalytic methods -
Joanna Kisała, Jakub Goclon, Dariusz Pogocki   +2 more
openaire   +1 more source

Electrochemical reductive dehalogenation of chlorobenzenes

Russian Chemical Bulletin, 1995
Electrochemical dechlorination of 1,2,3,5-tetrachlorobenzene in methanol and chlorobenzene in dimethylsulfoxide with tetraalkylammonium salts as supporting electrolytes was carried out. The extent of dechlorination depends significantly on the electrode composition.
V. P. Plekhanov, A. I. Tsyganok, S. M. Kulikov   +2 more
openaire   +1 more source

Reductive dehalogenation of chlorinated dioxins by an anaerobic bacterium

Nature, 2003
Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDDs and PCDFs) are among the most notorious environmental pollutants. Some congeners, particularly those with lateral chlorine substitutions at positions 2, 3, 7 and 8, are extremely toxic and carcinogenic to humans.
Michael, Bunge, Lorenz, Adrian, Angelika, Kraus, Matthias, Opel, Wilhelm G, Lorenz, Jan R, Andreesen, Helmut, Görisch, Ute, Lechner   +7 more
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Humin as an Electron Mediator for Microbial Reductive Dehalogenation

Environmental Science & Technology, 2012
We report that humins extracted as the solid fractions from paddy soils or sediment are involved in extracellular electron transfer, coupled with microbial reductive dehalogenation of pentachlorophenol (PCP), by serving as both electron acceptor and electron donor.
Chunfang, Zhang, Arata, Katayama
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Reductive Dehalogenation of Dichlorobenzenes and Monochlorobenzene to Benzene in Microcosms

Environmental Science & Technology, 2009
Anaerobic microcosms were constructed using sediments from a historically chlorobenzene-contaminated site and were provided with yeast extract as an electron donor. In these methanogenic microcosms, all three isomers of dichlorobenzene (DCB) were reductively dehalogenated to monochlorobenzene (MCB) when added together or individually, with 1,2-DCB ...
Jennifer M, Fung, Brian P, Weisenstein, E Erin, Mack, John E, Vidumsky, Tom A, Ei, Stephen H, Zinder   +5 more
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Reductive dehalogenation of halophenols in sulfite–bisulfate medium

Tetrahedron Letters, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Subbarayappa Adimurthy, Gadde Ramachandraiah   +1 more
openaire   +1 more source

Anaerobic Microbial Reductive Dehalogenation of Chlorinated Ethenes

Bioremediation Journal, 1999
The current knowledge on microbial reductive dechlorination of chlorinated ethenes (CEs) and its application are discussed.
Middeldorp, P.J.M., Luijten, M.L.G.C., van de Pas, B.A., van Eekert, M.H.A., Kengen, S.W.M., Schraa, G., Stams, A.J.M.   +6 more
openaire   +2 more sources