ISSN:
1573-8353
Source:
Springer Online Journal Archives 1860-2000
Topics:
Chemistry and Pharmacology
Notes:
Abstract 1-Amino-3-chloro-, 1-amino-3-bromo-, and 1-amino-3-iodoindazoles were prepared by reacting hydroxylamine-O-sulfonic acid with 3-haloindazoles in basic medium. It was found that on standing in air in chloroform solutions, these amines undergo a complex transformation which includes the stage of oxidation of a N-amino group, and are slowly converted into 4-(3-haloindazolyl-1)-aminobenzo-1,2,3-triazines. A similar transformation takes place in carbon tetrachloride, but not in toluene or tetrahydrofuran, which suggests that halomethanes participate in the elementary stages of the oxidation reaction.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01184880
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