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Reevaluation of the reactivity of hydroxylamine with O2−/HO2

✍ Scribed by Benon H.J. Bielski; Ravindra L. Arudi; Diane E. Cabelli; Wolf Bors

Book ID
102628492
Publisher
Elsevier Science
Year
1984
Tongue
English
Weight
228 KB
Volume
142
Category
Article
ISSN
0003-2697

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✦ Synopsis

The reactivity of hydroxylamine with HO2/O2- radicals was studied by pulse radiolysis and stopped-flow photolysis over a pH range of 1.1-10.5. Upper limits for the rate of reaction indicate that hydroxylamine, if it reacts at all, reacts at a very slow rate. Its use as an indicator for O-2 and an assay for superoxide dismutase is, therefore, inappropriate.

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## Abstract magnified image The utilization of arylhydrazononitriles (**6‐9**) for synthesis of azoles is demonstrated. Thus, arylazomalononitriles (**6**) reacted with hydroxylamine hydrochloride to afford isoxazol‐5‐imine (**10**), amidoxime (**12**) and __bis__‐amidoxime (**13**) derivatives de