3-Amino-2-methyl-5,6,7,8-tetrahydro-1-benzothieno[2,3-d]pyrimidin-4(3H)-one
✍ Scribed by Vasu, ;Nirmala, K. A. ;Chopra, Deepak ;Mohan, S. ;Saravanan, J.
- Publisher
- International Union of Crystallography
- Year
- 2004
- Tongue
- English
- Weight
- 252 KB
- Volume
- 60
- Category
- Article
- ISSN
- 1600-5368
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📜 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 19 H 20 N 2 O 2 S, the central thienopyrimidine ring system is essentially planar. The molecular structure is stabilized by C-HÁ Á ÁO hydrogen bonds. In the crystal packing, the molecules are linked only by van der Waals forces.
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.