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Amino acids as CH acids. 15. The effect of a second asymmetric amino-acid center in potassium λ- and δ-[N-salicylideneglycinato-N-salicylidene-S-valinato] cobaltates(III) on the kinetic and thermodynamic stereoselectivity in asymmetric threonine synthesis

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

Conclusions

  1. 1.

    The presence of a neighboring valine fragment in the potassium Λ- and Δ-[N-salicylideneglycinato-N-salicylidene-S-valinato] cobaltates (III), compounds (I) and (II), reduces the CH-acidity of the glycine fragment, and the rate of C-C bond formation, as compared with sodium bis[N-salicylideneglycinato]cobaltate(III).

  2. 2.

    The chiral center of the valine fragments of (I) and (II) exerts a stereochemical effect on the kinetics and thermodynamic steroselectivity of C-C bond formation between the complexes valine fragments and the acetaldehyde.

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Literature cited

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Authors and Affiliations

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

    Yu. N. Belokon', T. F. Savel'eva, E. A. Paskonova & V. M. Belikov

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  1. Yu. N. Belokon'
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  2. T. F. Savel'eva
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  3. E. A. Paskonova
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  4. V. M. Belikov
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Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 12, pp. 2720–2724, December, 1977.

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Belokon', Y.N., Savel'eva, T.F., Paskonova, E.A. et al. Amino acids as CH acids. 15. The effect of a second asymmetric amino-acid center in potassium λ- and δ-[N-salicylideneglycinato-N-salicylidene-S-valinato] cobaltates(III) on the kinetic and thermodynamic stereoselectivity in asymmetric threonine synthesis. Russ Chem Bull 26, 2514–2518 (1977). https://doi.org/10.1007/BF00924555

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  • DOI: https://doi.org/10.1007/BF00924555

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