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Reaction Kinetics and Catalysis Letters

, Volume 45, Issue 1, pp 7–14 | Cite as

Contribution of air oxygen to photooxidation of alkanes by vanadium(V) and chromium(VI) oxocomplexes

  • G. B. Shul'pin
  • G. V. Nizova
Article

Abstract

In photochemical oxygenation of cyclohexane by KVO3−CF3COOH or K2Cr2O7−Bu4NBr−H2O−CH2Cl2 in air the source of oxygen atoms in the product cyclohexanol and cyclohexanone is air dioxygen rather than a metal oxo-complex. In the absence of dioxygen the products of alkane oxygenation are not formed in either of the above systems. At pH=3, Cr(VI) does oxidize cyclohexane to cyclohexanol even in argon atmosphere.

Keywords

Chromium Argon Vanadium Oxygen Atom Alkane 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

В реакции фотохимического оксигенирования циклогексана в системах KVO3−CF3COOH или K2Cr2O7−Bu4NBr−H2O−CH2Cl2 на воздухе источником кислородного атома в образующихся циклогексаноле и циклогексаноне является дикислород воздуха, а не оксокомплекс металла. В отсутствии дикислорода продукты оксигенирования алкана не образуются в обеих системах. Однако, при pH=3, Cr(VI) окисляет циклогексан до циклогексанола даже в атмосфере аргона.

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Copyright information

© Akadémiai Kiadó 1991

Authors and Affiliations

  • G. B. Shul'pin
    • 1
  • G. V. Nizova
    • 1
  1. 1.Institute of Chemical PhysicsMoscowUSSR

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