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Catalysis of hydroperoxide decomposition by sulfur-containing metal chelates

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Conclusions

  1. 1.

    The compounds Cu(Dtc)2, Ni(Dtc)2, and Zn(Dtc)2 catalyze the decomposition ofα-phenylethyl hydroperoxide into free radicals and molecular products at 30 and 75°C (Dtc is N,N-diethyldithiocarbamate).

  2. 2.

    The products resulting from reactions of these dithiocarbamates also catalyze the decomposition ofα-phenylethyl hydroperoxide.

  3. 3.

    Catalytic decomposition ofα-phenylethyl hydroperoxide modifies the catalyst itself, leading to preferential reaction through a molecular decomposition mechanism.

  4. 4.

    The fact that stable RNO. radicals promoteα-phenylethyl hydroperoxide decomposition in the presence of Cu(Dtc)2 and Zn(Dtc)2, and inhibit decomposition in the presence of Cu(Tpa)2, hinders any attempt to use RNO. as radical acceptors in these systems [Tpa is bis (α-thiopicolinanilide)].

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Additional information

Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 4, pp. 768–773, April, 1978.

The authors would like to thank A. N. Zverev for help in carrying out some of the experiments.

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Vinogradova, V.G. Catalysis of hydroperoxide decomposition by sulfur-containing metal chelates. Russ Chem Bull 27, 662–666 (1978). https://doi.org/10.1007/BF00925279

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Keywords

  • Catalysis
  • Free Radical
  • Hydroperoxide
  • Metal Chelate
  • Dithiocarbamate