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Synthesis, protonation, and hydrogen isotope exchange in acidic media of benchrothrene and cymanthrene derivatives with BIS(Diphenyl-phosphino)methane and dimethylphenylphosphine as ligands

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

Conclusions

  1. 1.

    The new complexes C6H6Cr(CO)2PPh2CH2PPh2, C5H5Mn(CO)2PPh2CH2PPh2, C6H6Cr(CO)2PPh2CH3 have been synthesized, and it has been shewn that in acid solution (CF3COOH:CH2Cl2=1∶1) the first two complexes are protonated at the P atom which is not coordinated with the metal.

  2. 2.

    C6H6Cr(CO)2PPh2CH2PPh2 undergoes HIE some five times faster than C6H6Cr(CO)2PPh3, and the complex C5H5Mn(CO)2PPh2CH2PPh2 three times faster than C5H5Mn(CO)2PPh3, indicating that bis(diphenylphosphino)methane is a stronger electron-donor ligand than PPh3.

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Authors and Affiliations

  1. A. N. Nesmeyanov Institute of Heteroorganic Compounds, Academy of Sciences of the USSR, Moscow

    M. M. Estekhina, N. K. Baranetskaya & V. N. Setkina

Authors
  1. M. M. Estekhina
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  2. N. K. Baranetskaya
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  3. V. N. Setkina
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khirnicheskaya, No. 5, pp. 1178–1130, May, 1986.

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Estekhina, M.M., Baranetskaya, N.K. & Setkina, V.N. Synthesis, protonation, and hydrogen isotope exchange in acidic media of benchrothrene and cymanthrene derivatives with BIS(Diphenyl-phosphino)methane and dimethylphenylphosphine as ligands. Russ Chem Bull 35, 1069–1071 (1986). https://doi.org/10.1007/BF00955383

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  • DOI: https://doi.org/10.1007/BF00955383

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