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Year 2005, Month 6 (Section Brief Communications, Page 1532)

Oxidation of aniline with solutions of Mo—V-phosphoric heteropolyacids

M. V. Simonova,(a)* Е. G. Zhizhina,(a) V. V. Russkikh,(b) and K. I. Matveev(a)

Mo—V-phosphoric heteropolyacids (HPA) can be used for aniline oxidation to polyaniline or 1,4-benzoquinone. At room temperature and the molar ratio HPA : aniline = 0.67, more than 95% substrate are oxidized to polyaniline. At 90—100 °C and HPA : aniline = 3, the substrate is quantitatively oxidized to 1,4-benzoquinone. Solutions of HPA are regenerated by oxygen in a separate step.

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