Kinetics and Catalysis

, Volume 50, Issue 4, pp 527–529 | Cite as

Reactivity of arylnitroso oxides to triphenylphosphine

  • E. M. ChainikovaEmail author
  • R. L. Safiullin


The kinetics of reactions between phenylnitroso oxide, 4-CH3O-, 4-CH3-, or 4-Br-phenylnitroso oxide and triphenylphosphine in acetonitrile at 295 ± 2 K were studied using pulsed photolysis. Only trans-nitroso oxides enter this reaction. The rate constants of the reaction increase with increasing electron-acceptor properties of the substituent in the aromatic ring of nitroso oxide; they are on the order of 105 to 106 l mol−1 s−1. The extinction coefficient for trans-4-methylphenylnitroso oxide at 420 nm was estimated at 3.9 × 103 l mol−1 cm−1.


Triphenylphosphine Effective Rate Constant Nitroso Oxide Pulse Photolysis Consumption Rate Constant 
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© Pleiades Publishing, Ltd. 2009

Authors and Affiliations

  1. 1.Institute of Organic Chemistry, Ufa Scientific CenterRussian Academy of SciencesUfaRussia

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