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Abstract <p>The structure of two nitrogen-containing heterocyclic analogs of mucochloric and mucobromic acids - 3,4-dichloro- and 3,4-dibromo-5-hydroxy-1,5-dihydro-2<i>H</i>-pyrrol-2-ones - is studied. It is established by XRD that the crystals of the two pyrrolinones are not isostructural, despite their similar molecular geometries and the same space group <i>P</i>2<sub>1</sub>/<i>c</i>. On the contrary, the type of stereoisomeric recognition and, consequently, the crystal lattice architecture can be controlled by varying the halogen nature.</p>

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Control of the Type of Stereoisomeric Recognition in the 3,4-Dihalo-5-Hydroxy-1,5-Dihydro-2H-Pyrrol-2-One Series by Varying the Halogen Nature in the Molecule

  • 期刊论文

  • 发表日期：

    2026年1月1日

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  • L. V. Frantsuzova,
  • D. P. Gerasimova,
  • L. S. Kosolapova,
  • N. S. Charushin,
  • A. R. Kurbangalieva,
  • O. A. Lodochnikova

摘要

Abstract

The structure of two nitrogen-containing heterocyclic analogs of mucochloric and mucobromic acids - 3,4-dichloro- and 3,4-dibromo-5-hydroxy-1,5-dihydro-2H-pyrrol-2-ones - is studied. It is established by XRD that the crystals of the two pyrrolinones are not isostructural, despite their similar molecular geometries and the same space group P21/c. On the contrary, the type of stereoisomeric recognition and, consequently, the crystal lattice architecture can be controlled by varying the halogen nature.