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Kinetics and mechanism of the hydrolysis of metanitroacetanilide and metanitroformanilide in aqueous solutions of KOH

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Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Conclusions

  1. 1.

    The kinetic principles of the hydrolysis of metanitroacetanilide and metanitroformanilide in aqueous solutions of potassium hydroxide were studied by a spectrophotometric method.

  2. 2.

    The process of hydrolysis is irreversible, and the change in the concentration of the anilides with time is well described by a first-order equation.

  3. 3.

    The mechanism of ionization and the mechanism of the limiting step of hydrolysis of the investigated anilides in aqueous solutions of potassium hydroxide were established according to the dependence of the effective rate constant on the alkalinity of the medium b0 and the activity of water\(a_{H_2 O} \).

  4. 4.

    Metanitroformanilide and metanitroacetanilide exist in aqueous solutions of potassium hydroxide in three equilibrium forms: nonionized (B), singly ionized (BOH−), and doubly ionized (BOO=).

  5. 5.

    The limiting step in the process of hydrolysis is the decomposition of the complex of the doubly ionized form of the anilide and two water molecules (BOO=·2H2O).

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Literature cited

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Authors and Affiliations

  1. Institute of Chemical Physics, Academy of Sciences of the USSR, USSR

    M. I. Vinnik & A. Kh. Pochikyan

Authors
  1. M. I. Vinnik
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  2. A. Kh. Pochikyan
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 1, pp. 39–45, January, 1972.

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Vinnik, M.I., Pochikyan, A.K. Kinetics and mechanism of the hydrolysis of metanitroacetanilide and metanitroformanilide in aqueous solutions of KOH. Russ Chem Bull 21, 34–38 (1972). https://doi.org/10.1007/BF00855651

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  • DOI: https://doi.org/10.1007/BF00855651

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