Results 151 to 160 of about 1,574,989 (184)
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Photochemistry of organoselenium compounds
Journal of the Chemical Society, Chemical Communications, 1974Irradiation of dibenzyl diselenide (l) with 350 nm light in the presence of oxygen afforded benzaldehyde and elemental selenium, whereas irradiation in the absence of oxygen produced dibenzyl monoselenide (ll); irradiation of dibenzyl triselenocarbonate (III) produced dibenzyl diselenide.
Walter Stanley +2 more
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Separation of organoselenium compounds and their electrochemical detection
Analytical and Bioanalytical Chemistry, 2004A simplified procedure based on ion-exchange separation of selenourea (Se-U) and selenocystamine (Se-CM), which have very close half-wave potential when they are simultaneously analyzed by voltammetric techniques, has been developed and optimized. Thus, selenocystamine remains in the cation exchanger Purolite C 100 H, whereas selenourea is found in the
Maria Th, Ochsenkühn-Petropoulou +1 more
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Organoselenium Compounds in Cancer Chemoprevention
Mini-Reviews in Medicinal Chemistry, 2008Selenium is an important trace element involved in different physiological functions of human body. Knowledge of selenium in biology of cancer has increased at rapid rate especially during last two decades. Basic research and clinical studies involving animal models and more recently studies in human strongly support the protective role of selenium ...
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Crystal Structures of Organoselenium Compounds: Structural Descriptors for Chalcogen Bonds
Synthesis, 2022AbstractLess conventional non-covalent interactions such as chalcogen bonds attract the attention of researchers in various fields (organocatalysis, material sciences, biological chemistry, …). We present here useful descriptors to easily discriminate the structures in which chalcogen bonds involving selenium are observed.
Bodart, Laurie, Wouters, Johan
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Chemistry of Biologically Important Synthetic Organoselenium Compounds
Chemical Reviews, 2001Helmut Sies, Wolf-Walther du Mont
exaly +3 more sources
Carbonyl transposition on organoselenium compounds
Tetrahedron, 1997Abstract Carbonyl conjugated vinylic selenides undergo 1,3 and 1,5-carbonyl transposition sequences through organometallic reagents addition reactions followed by acid hydrolysis.
João V. Comasseto +2 more
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Thermodynamics of organoselenium and organotellurium compounds
Russian Chemical Reviews, 1995Experimental values of the enthalpies of formation (ΔHf°) and of the specific heat (Cp°) of the organic compounds of selenium and tellurium, are discussed, including their complexes with dialkylzinc and dialkylcadmium. Different forms of the methods of combustion enthalpy and of reaction calorimetry, used to determine ΔHf° values, are examined.
V I Tel'noy, M S Sheiman
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Dehalogenation of Halogenated Nucleobases and Nucleosides by Organoselenium Compounds
Chemistry – A European Journal, 2019AbstractHalogenated nucleosides, such as 5‐iodo‐2′‐deoxyuridine and 5‐iodo‐2′‐deoxycytidine, are incorporated into the DNA of replicating cells to facilitate DNA single‐strand breaks and intra‐ or interstrand crosslinks upon UV irradiation. In this work, it is shown that the naphthyl‐based organoselenium compounds can mediate the dehalogenation of ...
Santanu Mondal, Govindasamy Mugesh
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Genotoxicity of organoselenium compounds in human leukocytes in vitro
Mutation Research/Genetic Toxicology and Environmental Mutagenesis, 2009DNA damage and cell viability of human leukocytes cells were examined as simple tests for screening the potential toxicity of organoselenium compounds. Leukocytes were incubated with different organoselenium compounds at 4, 10, 40 and 100 microM or vehicle (DMSO) for 3h at 37 degrees C before of in vitro assays.
D B, Santos +9 more
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