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Crystal structure of ethyl 2-acetyl-3,7-dimethyl-5-(thiophen-2-yl)-5H-thiazolo[3,2-a]pyrimidine-6-carboxylate
- Source :
- Acta Crystallographica Section E: Crystallographic Communications, Vol 71, Iss 7, Pp o477-o478 (2015)
- Publication Year :
- 2015
- Publisher :
- International Union of Crystallography, 2015.
-
Abstract
- In the title compound, C17H18N2O3S2, the pyrimidine ring adopts a shallow sofa conformation, with the C atom bearing the axially-oriented thiophene ring as the flap [deviation = 0.439 (3) Å]. The plane of the thiophene ring lies almost normal to the pyrimidine ring, making a dihedral angle of 79.36 (19)°. In the crystal, pairs of very weak C—H...O hydrogen bonds link the molecules related by twofold rotation axes, forming R22(18) rings, which are in turn linked by another C—H...O interaction, forming chains of rings along [010]. In addition, weak C—H...π(thiophene) interactions link the chains into layers parallel to [001] and π–π interactions with a centroid–centroid distance of 3.772 (10) Å connect these layers into a three-dimensional network.
Details
- Language :
- English
- ISSN :
- 20569890
- Volume :
- 71
- Issue :
- 7
- Database :
- Directory of Open Access Journals
- Journal :
- Acta Crystallographica Section E: Crystallographic Communications
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.0686fddb22344abb2d1b1eed17ff207
- Document Type :
- article
- Full Text :
- https://doi.org/10.1107/S2056989015010981