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Über die Orientierung bei der Kondensation von Benzil mit monosubstituierten Guanidinen

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Summary

Condensation of benzil with two monosubstituted guanidines in the presence of 50 mol% of potassium hydroxide leads to the formation of 2-(subst. imino)-4, 4-diphenyl-imidazolidin-5-ones (Ia, b); by reduction of the potassium hydroxide used the formation of these products is more or less driven back in favour of the formation of 3-substituted 5, 5-diphenyl-glycocyamidines (Ic, d). A possible explanation for these orientation phenomena is given.

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References

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Authors and Affiliations

  1. Institut für Experimentelle Medizinische Forschung der Ungarischen Akademie der Wissenschaften, Abteilung für Pathophysiologie und Institut für Organische Chemie der Eötvös-Lorand-Universität, Budapest

    K. Lempert & Magda Lempert-Sréter

Authors
  1. K. Lempert
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  2. Magda Lempert-Sréter
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Additional information

5. Mitteilung über Hydantoine, Thiohydantoine und Glykocyamidine2.

4. Mitteilung sieheK. Lempert undJ. Breuer Chem. Ber.92, 1710 (1959).

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Lempert, K., Lempert-Sréter, M. Über die Orientierung bei der Kondensation von Benzil mit monosubstituierten Guanidinen. Experientia 15, 412–413 (1959). https://doi.org/10.1007/BF02157681

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  • DOI: https://doi.org/10.1007/BF02157681

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