Selenylation modification: enhancement of the antioxidant activity of a Glycyrrhiza uralensis polysaccharide
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DOI: 10.1007/s10719-018-9817-8
Abstract: AbstractSelenium (Se) is an essential trace element for human beings and many other forms of life. Organic selenium from natural foods has greater bioavailability and is safer than inorganic selenium species. In this article, the… read more here.
Keywords: antioxidant activity; selenylation; glycyrrhiza uralensis; uralensis polysaccharide ... See more keywords
Visible-Light-Promoted Selective Sulfonylation and Selenylation of Dienes to Access Sulfonyl-/Seleno-benzazepine Derivatives.
Sign Up to like & getrecommendations! Published in 2023 at "Organic letters"
DOI: 10.1021/acs.orglett.3c01550
Abstract: A novel visible-light-promoted selective sulfonylation and selenylation of dienes with selenosulfonates has been developed. This technology provides mild access to a wide range of sulfonyl benzo[b]azepinones and seleno-benzo[b]azepines. Preliminary mechanistic studies suggest that the sulfonylation… read more here.
Keywords: sulfonylation; light promoted; selenylation; selective sulfonylation ... See more keywords
Selective Synthesis of Bis-Heterocycles via Mono- and Di-Selenylation of Pyrazoles and Other Heteroarenes
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DOI: 10.1021/acsomega.2c00323
Abstract: The insertion of selenium was achieved in the form of mono-selenides and di-selenides for the preparation of novel bis-heterocyclic compounds. This method is more general and provides scaffold diversity with high yields of products. The… read more here.
Keywords: heterocycles via; bis heterocycles; selective synthesis; selenylation ... See more keywords
Regiodivergent metal-catalyzed B(4)- and C(1)-selenylation of o-carboranes
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DOI: 10.1039/d2sc05590b
Abstract: Regiodivergent transition metal-catalyzed B(4)- and C(1)-selenylation reactions of o-carboranes have been demonstrated. Namely, Ru(ii)-catalysis selectively generated B(4)-selenylated o-carboranes from the reaction of o-carborane acids with arylselenyl bromides with the release of carbon dioxide. In contrast,… read more here.
Keywords: metal catalyzed; selenylation; catalyzed selenylation; selenylation carboranes ... See more keywords
Monosaccharide Composition and In Vitro Activity to HCT-116 Cells of Purslane Polysaccharides after a Covalent Chemical Selenylation
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DOI: 10.3390/foods11233748
Abstract: The anti-cancer effects of selenylated plant polysaccharides are a focus of research. As a natural plant with extensive biological effects, there have been few studies related to edible purslane (Portulaca oleracea L.). Thus, in this… read more here.
Keywords: pps; sepps1 sepps2; selenylation; chemical selenylation ... See more keywords
Electro-Oxidative C3-Selenylation of Pyrido[1,2-a]pyrimidin-4-ones
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DOI: 10.3390/molecules28052206
Abstract: In this work, we achieved a C3-selenylation of pyrido[1,2-a]pyrimidin-4-ones using an electrochemically driven external oxidant-free strategy. Various structurally diverse seleno-substituted N-heterocycles were obtained in moderate to excellent yields. Through radical trapping experiments, GC-MS analysis and… read more here.
Keywords: selenylation; selenylation pyrido; pyrido pyrimidin; pyrimidin ones ... See more keywords
Enhanced Growth Inhibition and Apoptosis Induction in Human Colon Carcinoma HT-29 Cells of Soluble Longan Polysaccharides with a Covalent Chemical Selenylation
Sign Up to like & getrecommendations! Published in 2022 at "Nutrients"
DOI: 10.3390/nu14091710
Abstract: The selenylated polysaccharides chemically belong to the organic Se-conjugated macromolecules and have recently been attracting more and more attention due to their potential to promote body health or prevent cancers. Longan (Dimocarpus longan L.), as… read more here.
Keywords: apoptosis; chemical selenylation; human colon; selenylation ... See more keywords