ISSN:
1573-9171
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Conclusions 1. 2,6-Di-tert-butyl-4-aminoalkylphenols are capable of entering into an azo-combination reaction, eliminating the para-substituent. This reaction can be used for the quantitative determination of the indicated phenols in a mixture with the oxidation products. 2. The oxidation of 2,6-di-tert-butyl-4-aminoalkylphenols by molecular oxygen in aqueous alcohol alkaline solution is an autocatalytic process. 3. When an inhibitor of free radical reactions, 1,4-benzoquinone, is added at the beginning of the oxidation of 2,6-di-tert-butyl-4-methylaminomethylphenol, there is an increase in the induction period on the kinetic curve of phenol consumption. This fact indicates that oxidation begins with a step of formation of a phenoxyl radical. In the case of 2,6-di-tert-butyl-4-phenylphenol, the phenoxyl radical was detected directly by the EPR method.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00908730
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