Synthesis and Crystal Structure of 3-Amino-1-(5-Chloro-2-Hydroxyphenyl)Imidazolidine-2,4-Dione

Abstract

The present study describes the synthesis, spectral data, and single crystal X-ray structural analysis of 3-amino-1-(5-chloro-2-hydroxyphenyl)imidazolidine-2,4-dione. X-Ray analysis revealed that the title compound did not have the anticipated structure, but had that of a different substance. This unexpected conformation generated the interest in studying the synthesis of this compound. The inspected compound, 3-amino-1-(5-chloro-2-hydroxyphenyl)imidazolidine-2,4-dione, is a pharmaceutical intermediate and is nonplanar. Its benzene and five-membered rings have a dihedral angle of 53.95(7)°. The conformation is stabilized by intermolecular O‒H … O, O‒H … N, and N‒H … O interactions and a weak C‒H … π interaction.

Keywords :

• 2,4-dione
• 3-amino
• structure
• synthesis
• X-ray

Acknowledgements

The authors wish to acknowledge the Faculty of Arts and Sciences, Ondokuz Mayıs University, Turkey, for the use of the Stoe IPDS II diffractometer (purchased under grant F.279 of the University Research Fund).