Pulsradiolytische Untersuchung primärer Schritte der Oxidation von Aminen in wäßriger Lösung / Pulsradiolytic Investigation of the Primary Steps in the Oxidation of Amines in Aqueous Solution
Open Access
- 1 October 1969
- journal article
- Published by Walter de Gruyter GmbH in Zeitschrift für Naturforschung B
- Vol. 24 (10) , 1262-1267
- https://doi.org/10.1515/znb-1969-1012
Abstract
The OH radical rapidly reacts with CH3NH2 and C6H5NH2 but reacts slower with CH3NH3 ⊕, respectively C6H5NH3 ⊕. In the reaction with methylamine. the complex is formed which loses water with τ½=26 µs. The addition of OH to the aromatic ring of aniline occurs in 20% of the reactions. The hydroxy-amino-cyclohexadienyl radical has its absorption maximum at 3500 A. It decays by elimination of water to yield the anilino radical C6H5NH (τ½= 5.7µs at pH = 7), H⊕ and OH⊖ ions catalyse the decay. In 80% of the reactions. · OH adds to the amino group of aniline. The subsequent loss of water or of OH⊖ occurs rapidly (6H5NH2® and the pK-value of 7.0 of C6H5NH2 ⊕ first described by LAND and PORTER are confirmed.Keywords
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