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σ-Alkynylcopper(i) and σ-alkynylpalladium(ii) complexes as intermediates in catalytic oxidative carbonylation of alkynes to alkynoates

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Abstract

Hypothetical mechanisms of oxidative carbonylation of alkynes to alkynoates in the PdCl2-CuCl2-base system are discusssed. σ-Alkynylcopper(i) and σ-alkynylpalladium(ii) complexes are considered to be the most probable intermediates in the process. A kinetic model of the reaction is proposed. The oxidative carbonylation of RC≡CCu in the PdCl2-CuCl2-base system leads to the formation of RC≡CCOOR'.

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Authors and Affiliations

  1. M. V. Lomonosov Moscow State Academy of Fine Chemical Technology, 86 prosp. Vemadskogo, 117571, Moscow, Russian Federation

    Ton T. Zung, L. G. Bruk & O. N. Temkin

Authors
  1. Ton T. Zung
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  2. L. G. Bruk
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  3. O. N. Temkin
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Additional information

Translated fromIzvestiya Akademii Nauk. Seriya Khimicheskaya, No. 10, pp. 1806–1809, October, 1993.

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Zung, T.T., Bruk, L.G. & Temkin, O.N. σ-Alkynylcopper(i) and σ-alkynylpalladium(ii) complexes as intermediates in catalytic oxidative carbonylation of alkynes to alkynoates. Russ Chem Bull 42, 1730–1733 (1993). https://doi.org/10.1007/BF00697052

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  • DOI: https://doi.org/10.1007/BF00697052

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