In the title compound, C~19~H~27~N~3~OS, the central thienopyrimidine ring system is essentially planar. The cyclohexene ring adopts a half-chair conformation, while the piperidine ring is in a standard chair conformation. There is an intramolecular C—H...O hydrogen bond, which stabilizes the molecu
3-Butyl-2-morpholino-5,6,7,8-tetrahydrobenzothieno[2,3-d]pyrimidin-4(3H)-one
✍ Scribed by Zeng, Xiao-Hua ;Wang, Hong-Mei ;Zheng, Ai-Hua ;Tian, Jia-Hua ;He, Ting-Yun
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 584 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
In the title molecule, C 18 H 25 N 3 O 2 S, the central thienopyrimidine ring system is essentially planar. The cyclohexene ring, in which the four CH 2 groups are disordered in an approximately 1:1 ratio, adopts a half-chair conformation, while the morpholine ring is in a standard chair conformation. The butyl group is disordered in an approximately 2:1 ratio. In the crystal structure, weak intermolecular C-HÁ Á ÁO hydrogen-bonding interactions stabilize the crystal structure.
Related literature
For related literature, see: Ding et al. (2004); Zeng et al. (2007).
📜 SIMILAR VOLUMES
In the title compound, C 17 H 17 N 3 OS 2 , the fused thiophene and pyrimidine rings are almost coplanar. The amino group is involved in both intramolecular and intermolecular hydrogen bonds, the latter linking the molecules into a centrosymmetric dimer.
In the title compound C~20~H~21~Cl~2~N~2~O~2~S, the thienopyrimidine ring system is essentially planar. The crystal packing is stabilized by van der Waals forces and by an intermolecular C—H...O hydrogen-bonding interaction, which links the molecules into zigzag chains.