Results 161 to 170 of about 3,887 (197)

One-Pot Multicomponent Polymerization, Metal-, and Non-Metal-Catalyzed Synthesis of Organoselenium Compounds

open access: yesPolymers, 2022
The one-pot multicomponent synthetic strategy of organoselenium compounds represents an alternative and robust protocol to the conventional multistep methods. During the last decade, a potential advance has been made in this domain. This review discusses
M Gouda   +2 more
exaly   +2 more sources

Organoselenium ligands in catalysis

Dalton Transactions, 2012
Organoselenium ligands are building blocks of several transition metal complexes which catalyze various organic reactions efficiently in solution. In this review the survey of developments pertaining to the designing of such complexes (along with their Se-ligands), and their uses as catalysts for various organic reactions has been presented with ...
Arun, Kumar   +3 more
openaire   +2 more sources

The Effect of Organoselenium Compounds on Histone Deacetylase Inhibition and Their Potential for Cancer Therapy

open access: yesInternational Journal of Molecular Sciences, 2021
Genetic and epigenetic changes alter gene expression, contributing to cancer. Epigenetic changes in cancer arise from alterations in DNA and histone modifications that lead to tumour suppressor gene silencing and the activation of oncogenes.
Ashmika Foolchand   +2 more
exaly   +2 more sources

Organoselenium Compounds in Cancer Chemoprevention

Mini-Reviews in Medicinal Chemistry, 2008
Selenium 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 ...
openaire   +2 more sources

The Nature of the Interaction of Organoselenium Molecules with Diiodine

The Journal of Physical Chemistry A, 2011
The electronic structure of charge-transfer complexes of organoselenium compounds with diiodine has been studied at several levels of theory (Hartree-Fock, second order Møller-Plesset, and density functional theory). The complexation energies, optimized geometries, and the topology of the electron density and its Laplacian distribution, including ...
Madzhidov T.   +2 more
openaire   +4 more sources

Organoselenium and Organotellurium Compounds:  Toxicology and Pharmacology

Chemical Reviews, 2004
AbstractFor Abstract see ChemInform Abstract in Full Text.
Cristina W, Nogueira   +2 more
openaire   +2 more sources

Photochemistry of organoselenium compounds

Journal of the Chemical Society, Chemical Communications, 1974
Irradiation 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
openaire   +1 more source

Organoselenium Chemistry

1999
Abstract Organoselenium chemistry is proving increasingly valuable to the synthetic organic chemist. Selenium residues are easily introduced into organic molecules, they serve to effect a variety of useful transformations, and are easily removed at the end of the sequence. These processes are often characterized by high chemo- regio- and
openaire   +1 more source

Separation of organoselenium compounds and their electrochemical detection

Analytical and Bioanalytical Chemistry, 2004
A 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
openaire   +2 more sources

Selenazolidines as Novel Organoselenium Delivery Agents

Bioorganic & Medicinal Chemistry Letters, 2001
Two new classes of selenazolidine-4(R)-carboxylic acids (2-oxo and 2-methyl-SCAs) were synthesized and characterized. Both were designed as latent forms of selenocysteine, intended to provide a chemically superior delivery form for selenium. The prodrugs may be clinically useful when selenium supplementation at supranutritional levels is indicated ...
Y, Xie   +3 more
openaire   +2 more sources

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