RADICAL PROCESSES IN LIPIDS. SELECTIVITY OF HYDROGEN ABSTRACTION FROM LIPIDS BY BENZOPHENONE TRIPLET
- 1 May 1989
- journal article
- research article
- Published by Wiley in Photochemistry and Photobiology
- Vol. 49 (5) , 531-535
- https://doi.org/10.1111/j.1751-1097.1989.tb08421.x
Abstract
Laser photolysis techniques have been used to measure the reactivity of benzophenone triplet (3BZP) toward various fatty acids and two glycerides in benzene solution. Eight compounds varying both in number and in the configuration of olefinic bonds have been examined. It has been found that the rate constant for hydrogen abstraction from these compounds by 3BZP may be related to the number of secondary, allylic and doubly allylic hydrogens in each molecule by the equation: kH = {[H0.023[Hsec] + 0.112[Hallylic] + 1.78[Hdoubly allylic]} .times. 107 M-1s-1.This publication has 15 references indexed in Scilit:
- Benzophenone-photosensitized autoxidation of linoleate in solution and sodium dodecyl sulfate micellesCanadian Journal of Chemistry, 1987
- Absolute rate constants of alkoxyl radical reactions in aqueous solutionThe Journal of Physical Chemistry, 1987
- Mechanisms of lipid peroxidationJournal of Free Radicals in Biology & Medicine, 1985
- Quenching of singlet oxygen luminescence by fatty acids and lipidsFEBS Letters, 1983
- MECHANISM OF PROTECTION AGAINST MEMBRANE PEROXIDATIONPublished by Elsevier ,1982
- Reaction of benzophenone triplets with allylic hydrogens. Laser flash photolysis studyJournal of the American Chemical Society, 1981
- Primary quantum yields of ketyl radicals in photoreduction by amines. Abstraction of hydrogen from nitrogenJournal of the American Chemical Society, 1980
- Photosensitized Oxidation and Singlet Oxygen: Consequences in Biological SystemsPublished by Elsevier ,1976
- Free Radical Mechanisms of Lipid Damage and Consequences for Cellular MembranesPublished by Elsevier ,1976
- Rate studies of aromatic triplet carbonyls with hydrocarbonsJournal of the American Chemical Society, 1974