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Biotransformation of organophosphorus compounds
Toxicology, 2001This study reviews current understanding of mechanisms of biotransformation of organophosphorus compounds (OPC). The first part of this article covers chemical aspects of biotransformation describing reactions that lead to activation or detoxication of OPC.
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1991
Publisher Summary This chapter discusses the organophosphorus compounds, and PH and PH2 stretching vibrations that give rise to strong and sharp infrared (IR) and Raman bands in the region 2505–2222 cm−1. In the PH2 group, the antisymmetrical and symmetrical stretching bands are usually not resolved.
Daimay Lin-Vien +3 more
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Publisher Summary This chapter discusses the organophosphorus compounds, and PH and PH2 stretching vibrations that give rise to strong and sharp infrared (IR) and Raman bands in the region 2505–2222 cm−1. In the PH2 group, the antisymmetrical and symmetrical stretching bands are usually not resolved.
Daimay Lin-Vien +3 more
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Fungicidal action of organophosphorus compounds
1969In Japan, some organomercuric compounds and an antibiotic blasticidin S have been used for many years for the control of the rice blast which is caused by the infestation of Pyricularia oryzae. Recently remarkable controlling effectiveness of some benzyl phosphoric esters on the rice blast was found by the research group of the Ihara Chemicals Co ...
Eiichi Yoshinaga, Masaru Kado
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Organophosphorus compounds—VIII
Tetrahedron, 1968Abstract The reaction of 2-benzylidene-3(2 H )-thianaphthenone-1,1-dioxides (VI) with trialkyl phosphites depends upon the reaction medium. In phenol, compounds having structure VII are produced. In benzene, the 1:1 adducts isolated, wre believed to have a structure similar to X or the corresponding cyclic oxy-phosphorane (XI) which is readily ...
Ahmed Mustafa +3 more
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Electrochemistry in Preparing Organophosphorus Compounds
ChemInform, 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.
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Organophosphorus compounds–XVIII
Tetrahedron, 1973Abstract Dialkyl phosphites react with 4-triphenylmethyl-1,2-benzoquinone (6) to give dihydroxyphosphonates having structure (7). Trialkyl phosphites, on the other hand, attack the carbonyl oxygen of 6, yielding cyclic unsaturated pentaoxyphosphoranes (17). These are converted into the o-quinol phosphate esters (16) by hydrogen chloride.
F.H. Osman, M.M. Sidky
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Tetrahedron, 1972
Abstract Trimethyl and triethyl phosphites react with quinoneimine IV, in aprotic and protic solvents to produce compounds V, VI and VII. The outcome of this reaction depends on the experimental conditions. Triphenyl phosphite, triphenyl-phosphine and phosphorous acid cause the quantitative reduction of IV to VII.
M.F. Zayed, M.M. Sidky
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Abstract Trimethyl and triethyl phosphites react with quinoneimine IV, in aprotic and protic solvents to produce compounds V, VI and VII. The outcome of this reaction depends on the experimental conditions. Triphenyl phosphite, triphenyl-phosphine and phosphorous acid cause the quantitative reduction of IV to VII.
M.F. Zayed, M.M. Sidky
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Lipoproteins and hydrolysis of organophosphorus compounds
Chemico-Biological Interactions, 1993Paraoxonase of human and animal sera was shown to be a structural part of high density lipoproteins (HDL) by immunoprecipitation, heparin- or polyethyleneglycol fractionation, ultracentrifugation and gel chromatography. Frequency distribution of paraoxonase activity in human sera is trimodal.
Karsten Dewald +5 more
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Low-Coordinated Organophosphorus Compounds [PDF]
Phosphorus, Sulfur, and Silicon and the Related Elements, 2002 AbstractFor Abstract see ChemInform Abstract in Full Text.
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Molecular Structures of Acyclic Organophosphorus Compounds [PDF]
Russian Chemical Reviews, 1971 The structural data for various classes of cyclic organophosphorus compounds published up to 1972 are systematically reviewed. The geometrical parameters are classified in accordance with the concepts of the valence states of atoms in the molecule and the types of chemical bonds.
Leonid S. Khaikin, Lev V. Vilkov
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