The Chemistry of β-Hydroxy Hydroperoxides
2021年5月7日 · This review describes the synthetic strategies to prepare β-hydroxy hydroperoxides (β-hydroperoxy alcohols) and presents their main applications in organic chemistry.
The Underrecognized Role of the Hydroperoxyl (HOO - Springer
2022年2月6日 · Howard JA, Ingold KU (1967a) Absolute rate constants for hydrocarbon autoxidation. V. the hydroperoxy radical in chain propagation and termination. Can J Chem 45:785–792. Article CAS Google Scholar Howard JA, Ingold KU (1967b) Absolute rate constants for hydrocarbon autoxidation. VI.
Oxygen radical chemistry of polyunsaturated fatty acids
1989年1月1日 · Given the proper conditions or catalysts, the hydroperoxides are prone to further transformations by free radical routes. Homolytic cleavage of the hydroperoxy group can afford either a peroxyl radical or an alkoxyl radical.
The Underrecognized Role of the Hydroperoxyl (HOO
2022年2月6日 · The absolute rate constant for the self-reaction of hydroperoxy radicals (chain termination) in nonpolar solvents is very much higher than previously reported values in aqueous media.
Structures and reactivity of peroxy radicals and dimeric products ...
2021年1月12日 · Jørgensen, S. et al. Rapid hydrogen shift scrambling in hydroperoxy-substituted organic peroxy radicals. J. Phys. Chem. A 120, 266–275 (2016).
Hydroperoxides derived from marine sources: origin and biological ...
2019年1月8日 · The two hydroperoxy clerosterols (24 and 25) were isolated from the Indo-Pacific marine green alga Codium arabicum (Sheu et al. 1995). Isolated sterols displayed significant cytotoxic activity against various cancer cell lines.
Experimental measurement of the electron affinity of the hydroperoxy ...
Experimental measurement of the electron affinity of the hydroperoxy radical. Veronica M. Bierbaum, Robert J. Schmitt, C. H. DePuy, Roy D. Mead, Peter A. Schulz, and ; W. C. Lineberger
Hydroperoxyl - an overview | ScienceDirect Topics
The studies carried out in this field [58, 59] focus mainly on hydroperoxyl sterols, epidioxy sterols, and fucosterol contents present in various marine invertebrates, such as in sea sponge Xestospongia testudinum Lamarck (Petrosiidae) from South China Sea, sea urchin Glypto cidariscrenularis A. Agassiz (Glyptocidaridae), sea sponge Mycale species (Mycalidae), …
Acid catalysis of a linoleic acid hydroperoxide: formation of …
2002年5月1日 · Harold W. Gardner, Ronald D. Plattner, David Weisleder. The epoxyallylic radical from homolysis and rearrangement of methyl linoleate hydroperoxide combines with the thiyl radical of N-acetylcysteine.
(PDF) Acid catalysis of a linoleic acid hydroperoxide: Formation of ...
1984年2月1日 · The following reaction mechanism is proposed: (a) a conjugate acid forms by addition of a proton to a hydroperoxy group; (b) electrophilic attack on C-12 by a partially positive-charged α-oxygen...
10-Hydroperoxy-8,12-octadecadienoic acid. A diagnostic probe …
10-Hydroperoxy-8,12-octadecadienoic acid. A diagnostic probe of alkoxyl radical generation in metal-hydroperoxide reactions. Regine Labeque; and ; Lawrence J. Marnett
"Effects of Water Vapor on the Kinetics of the Methylperoxy …
Effects of Water Vapor on the Kinetics of the Methylperoxy Radical Self-reaction and Reaction with Hydroperoxy Author Alecia Mower , Brigham Young University - Provo Follow
Spectra and Kinetics of the Hydroperoxyl Free Radical in the Gas …
1972年3月15日 · Harold S. Johnston Department of Chemistry and Inorganic Materials, Research Division, University of California, Berkeley, California 94720 Search for other works by this author on:
Hydroperoxy Group - an overview | ScienceDirect Topics
A 'Hydroperoxy Group' is defined as a functional group containing an oxygen atom linked to a hydrogen atom and another oxygen atom. It is produced in different regioisomeric forms by various fatty acids like linolenic acid and arachidonic acid.
Transformation of fatty acid hydroperoxides by alkali and ...
1993年1月6日 · Treatment of methyl 13(S)-hydroperoxy-9(Z), 11(E)-octadecadienoate with vanadium oxyacetylacetonate led to the formation of two diastereometric α,β-epoxy alcohols, i.e. methyl 11(R), 12(R)-epoxy...
Transformation of fatty acid hydroperoxides by alkali and ...
In addition, about 20–25% of the reactant was converted into several unknown by-products. In the present work it was confirmed that the stereochemistry was conserved during the hydroperoxy-diene to hydroxydiene transformation, but also, novel by-products were identified.
Hydroperoxy radical | HO2 | CID 520535 - PubChem
2021年10月14日 · Hydroperoxy radical | HO2 | CID 520535 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety/hazards/toxicity information, supplier lists, and more.
Hydroperoxide - an overview | ScienceDirect Topics
Thus, a complete and fully efficient antioxidant system is accomplished by a one-electron reduction of hydroperoxy radicals (chain-breaking reaction, accomplished by vitamin E) followed by a two-electron reduction of lipid hydroperoxides …
Hydroperoxide Group - Chemistry LibreTexts
2022年2月28日 · The LibreTexts libraries are Powered by NICE CXone Expert and are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. We also acknowledge previous National Science Foundation support under grant …
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