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Vapor-phase oxidation of 4-picoline to pyridine-4-carboxaldehyde on a vanadium phosphate catalysts

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Abstract

The vapor-phase oxidation of 4-picoline to pyridine-4-carboxaldehyde on (VO)2P2O7 has been studied. VOHPO4·0.5 H20 was used as catalyst precursor. The resulting aldehyde was trapped as oxime with hydroxylamine hydrochloride solution in a subsequent reaction. In the optimum temperature range (683–703 K), a high 4-picoline conversion with good selectivity for the aldehyde was observed.

Abstract

Исследовали парофазное окисление 4-пиколина до пиридин-4-карбоксиальдегида на (VO)2P2O7. Предшественником катализатора служил VOHPO4·0,5H20. Образующийся альдегид ловили в виде оксима с помощью раствора гидрохлорида гидроксиламина. В оптимальном интервале температур (683–703 К) была достигнута высокая конверсия 4-пиколина с хорошей селективностью к альдегиду.

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Authors and Affiliations

  1. Central Istitute of Organic Chemistry, Academy of Sciences, 1199, Berlin, BRD

    A. Martin, B. Lücke & H. -J. Niclas

  2. Division of Research, Chemiekombinat Bitterfeld, 4400, Bitterfeld, BRD

    A. Förster

Authors
  1. A. Martin
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  2. B. Lücke
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  3. H. -J. Niclas
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  4. A. Förster
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Martin, A., Lücke, B., Niclas, H.J. et al. Vapor-phase oxidation of 4-picoline to pyridine-4-carboxaldehyde on a vanadium phosphate catalysts. React Kinet Catal Lett 43, 583–588 (1991). https://doi.org/10.1007/BF02064732

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  • DOI: https://doi.org/10.1007/BF02064732

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