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RADICAL PROCESSES IN LIPIDS. A LASER PHOTOLYSIS STUDY OF t ‐BUTOXY RADICAL REACTIVITY TOWARD FATTY ACIDS
Author(s) -
Small Richard D.,
Scaiano Juan C.,
Patterson L. K.
Publication year - 1979
Publication title -
photochemistry and photobiology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.818
H-Index - 131
eISSN - 1751-1097
pISSN - 0031-8655
DOI - 10.1111/j.1751-1097.1979.tb09258.x
Subject(s) - allylic rearrangement , reactivity (psychology) , chemistry , photodissociation , hydrogen atom abstraction , reaction rate constant , double bond , medicinal chemistry , photochemistry , stereochemistry , hydrogen , organic chemistry , kinetics , catalysis , medicine , physics , alternative medicine , pathology , quantum mechanics
— Laser photolysis techniques have been used to measure the reactivity of t ‐butoxy radical ( t ‐BuO) toward various fatty acids. Eight compounds varying both in number and in the configuration of olefinic bonds were examined. It has been found that the rate constant for hydrogen abstraction from these compounds by t ‐BuO may be related to the number of secondary, allylic, and doubly allylic hydrogens in each molecule by the equation: k r = [0.072[H sec ] + 0.518[H allylic ] + 2.716[H doubly allylic ] x 10 6 M ‐1 s ‐1 .