In (S)-(+)-5-(3-bromo-4-isopropoxyphen-yl)-5-methyl-imidazolidine-2,4-dione, C13H15BrN2O3, (I), the hydantoin groups are connected via inter-molecular N-H⋯O hydrogen bonds, forming a terraced sheet structure. In the chloro analogue, (S)-(+)-5-(3-chloro-4-isopropoxyphen-yl)-5-methyl-imidazolidine-2,4-dione, C13H15ClN2O3, (II), the inter-molecular N-H⋯O hydrogen-bonding network forms a flat sheet. Comparison of the crystal structures reveals that (II) is more loosely packed than (I).
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4770946 | PMC |
| http://dx.doi.org/10.1107/S2056989015023014 | DOI Listing |
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