Use of a phase transfer agent in a mediated electrochemical process. Application to the oxidation of 4-nitrotoluene

✍ Scribed by F. Lapicque; A. Storck

• Publisher: Elsevier Science
• Year: 1985
• Tongue: English
• Weight: 457 KB
• Volume: 30
• Category: Article
• ISSN: 0013-4686
• DOI: 10.1016/0013-4686(95)80022-0

✦ Synopsis

This paper describes experimental results for the mediated electrooxidation of 4-nitrotoluene into 4-nitrobenzoic acid. The organic substrate is chemically oxidated by hexavalent chromium in a sulphuric medium (6 M) at 80"C; the presence of a phase transfer agent (tetrabutylammonium hydrogenosulphate, TBA) greatly accelerates the reaction. Used solutions of chromium were regenerated at a lead oxide anode with a Faradaic yield close to 67 %. No drastic influence of the remaining TBA in the aqueous phase was observed.