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Статья
2020

Electrochemical Amination of Isomeric Chloroanilines in Aqueous Solutions of Sulfuric Acid

Yu. A. LisitsynYu. A. Lisitsyn, A. V. SukhovA. V. Sukhov
Российский электрохимический журнал
https://doi.org/10.1134/S1023193520050080
Abstract / Full Text
Lisitsyn, Y.A., Sukhov, A.V. Electrochemical Amination of Isomeric Chloroanilines in Aqueous Solutions of Sulfuric Acid. Russ J Electrochem 56, 426–430 (2020). https://doi.org/10.1134/S1023193520050080

The processes of indirect cathodic amination of para, ortho, and meta-chloroanilines by means of the Ti(IV)–NH2OH system in aqueous solutions of 9–17 M sulfuric acid are studied. The efficiency and regioselectivity of radical cation substitution increase with the increase in electrolyte acidity and temperature. Functionalization of para-chloroaniline in 17 М H2SO4 produces 4-chloro-1,3-phenylenediamine with the mass fraction of 99.7%. Its yield corresponding to the complete conversion of hydroxylamine is 91%. The only side product of amination is para-phenylidenediamine.

Author information
  • Kazan Federal University, Butlerov Chemical Institute, 420008, Kazan, RussiaYu. A. Lisitsyn & A. V. Sukhov
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