Letter | Published:

Mechanism of the oxidation of ethylene by palladium(II)

Naturevolume 256pages635636 (1975) | Download Citation

Subjects

Abstract

THE oxidation of ethylene to acetaldehyde by aqueous palladium chloride forms the basis of the Wacker process. The kinetics and mechanism of this reaction have been extensively studied for ethylene and other olefins, and most authors assume that the formation of a cis hydroxoethylene–palladium complex is an essential step in the reaction1–4. We propose here a new mechanism by which the trans intermediate, [C2H4Pd(OH)Cl2], may directly yield the palladium σ-hydroxyalkyl species without the necessity of trans–cis isomerisation or the attachment of a fifth ligand.

Access optionsAccess options

Rent or Buy article

Get time limited or full article access on ReadCube.

from$8.99

All prices are NET prices.

References

  1. 1

    Jira, R., and Freiesleben, W., Organomet. React., 3, 1 (1972).

  2. 2

    Herbehold, M., Metal π-Complexes, II (2), 198 (Elsevier, Amsterdam, 1974).

  3. 3

    Aguilo, A., Adv. organomet. Chem., 5, 321 (1967).

  4. 4

    Stern, E. W., Transition Metals in Homogeneous Catalysis, 93 (Dekker, New York, 1971).

  5. 5

    Moiseev, I. I., Vargaftik, M. N., and Sirkin, Y. K., Dokl. Akad. Nauk. S.S.S.R., 152, 773 (1963).

  6. 6

    Henry, P. M., J. Am. chem. Soc., 86, 3246 (1964).

  7. 7

    Jira, R., Sedlmeier, J., and Smidt, J., Annalen, 693, 99, (1966).

  8. 8

    Stern, E. W., Catalysis Rev., 1, 73 (1971).

  9. 9

    Okada, H., Noma, T., Katsuyama, Y., and Hashimoto, H., Bull. chem. Soc. Japan, 41, 1395 (1968).

  10. 10

    Parkins, A. W., and Slade, R. C., J. chem. Soc., Dalton (in the press).

  11. 11

    Kato, H., Bull. chem. Soc. Japan, 44, 348 (1971).

  12. 12

    Rösch, N., Messmer, R. P., and Johnson, K. H., J. Am. chem. Soc., 96, 3855 (1974).

  13. 13

    Messmer, R. P., Interrante, L. V., and Johnson, K. H., J. Am. chem. Soc., 96, 3847 (1974).

  14. 14

    Hartley, F. R., Chem. Rev., 69, 799 (1969).

Download references

Author information

Affiliations

  1. Chemistry Department, Queen Elizabeth College, London, W8 7 AH, UK

    • ADRIAN W. PARKINS
    •  & ROGER C. SLADE

Authors

  1. Search for ADRIAN W. PARKINS in:

  2. Search for ROGER C. SLADE in:

About this article

Publication history

Received

Accepted

Issue Date

DOI

https://doi.org/10.1038/256635b0

Comments

By submitting a comment you agree to abide by our Terms and Community Guidelines. If you find something abusive or that does not comply with our terms or guidelines please flag it as inappropriate.