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Hydrogenolysis of cyclopentane hydrocarbons in presence of platinum deposited on silica gel

  • Organic and Biological Chemistry
  • Published:
Bulletin of the Academy of Sciences of the USSR, Division of chemical science Aims and scope

Summary

  1. 1.

    An investigation was made of the hydrogenolysis of cyclopentane, methylcyclopentane, and ethylcyclopentanc in presence of platinum deposited on silica gel at 210–260°.

  2. 2.

    Just as in the case of platinum deposited on alumina, the apparent activation energy for the hydrogenolysis of alkylcyclopentanes is less than Eapp for the hydrogenolysis of cyclopentane. A hypothesis is advanced concerning the causes of this phenomenon.

  3. 3.

    The relative yields of the products of the hydrogenolysis of the different types of bonds in alkylcyclopentanes were determined. In presence of platinized silica gel the passivating effect on an alkyl group on the bonds of a fivemembered ring adjacent to the carbon carrying the substituent is particularly strong.

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Literature cited

  1. B. A. Kazanskii and T. F. Bulanova, Izv. AN SSSR. Otd. khim. n.1946, 406.

  2. A. L. Liberman, O. V. Bragin, G. K. Gur'yanova, and B. A. Kazanskii, Izv. AN SSSR. Ser. khim.1963, 1737.

  3. I. V. Gostunskaya, Kuo Ch'ing-fêng, and B. A. Kazanskii, Izv. AN SSSR. Ser. khim. No. 5, 832 (1964).

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  4. A. V. Kiselev, Collection of Papers Read At the Inter-University Conference on Petroleum Chemistry [in Russian], MGU, p. 273 (1960).

  5. A. I. Shatenshtein, Isotopic Exchange and the Replacement of Hydrogen in Organic Compounds [in Russian]. Izd. AN SSSR, p. 230 (1960).

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Authors and Affiliations

  1. M. V. Lomonosov Moscow State University, USSR

    I. V. Gostunskaya, Kuo Ch'ing-fêng & B. A. Kazanskii

Authors
  1. I. V. Gostunskaya
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  2. Kuo Ch'ing-fêng
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  3. B. A. Kazanskii
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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Setiya Khimicheskaya, No. 6, pp. 1073–1077, June, 1964

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Gostunskaya, I.V., Ch'ing-fêng, K. & Kazanskii, B.A. Hydrogenolysis of cyclopentane hydrocarbons in presence of platinum deposited on silica gel. Russ Chem Bull 13, 995–998 (1964). https://doi.org/10.1007/BF01141654

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  • DOI: https://doi.org/10.1007/BF01141654

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