The title compound, C 17 H 18 N 2 O, was obtained by methylation of (4R,5R)-4,5-diphenylimidazolidin-2-one. The C-O bond exhibits double-bond character, and both C-N bonds in the urea group are intermediate between single and double bonds.
rel-(2R,5R)-1-Benzoyl-2-tert-butyl-3-methyl-5-(2,2,3,3,4,4,5,5,5-nonafluoropentyl)imidazolidin-4-one at 100 K
✍ Scribed by Büchel, R. ;Aebi, R. ;Keese, R. ;Venugopalan, P.
- Book ID
- 114510973
- Publisher
- International Union of Crystallography
- Year
- 1994
- Tongue
- English
- Weight
- 341 KB
- Volume
- 50
- Category
- Article
- ISSN
- 0108-2701
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📜 SIMILAR VOLUMES
In the title compound, C 11 H 18 N 2 O 2 S, the dihedral angle between the thiophene ring and the mean plane of the puckered imidazolidine ring is 85.0 (2) . Adjacent molecules are linked by pairs of inversion-related O-HÁ Á ÁN hydrogen bonds, leading to a chain structure.
In the title compound, C 22 H 28 N 2 O 2 S, the carbonyl group closer to the thiol group is almost perpendicular to the attached benzene ring. The crystal packing is stabilized by intermolecular N-HÁ Á ÁO and C-HÁ Á ÁO hydrogen bonds.
In the title compound, C 14 H 30 O 4 Si, the bond angles around Si are in the range 105.4 (3)-112.1 (4) and the tetrahydrofuran ring adopts a distorted envelope conformation. There is one intramolecular and one intermolecular O-HÁ Á ÁO hydrogen bond in the crystal structure. A spiral of molecules fo