3-(Imidazolidin-2-ylidene)-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2,4-dione
✍ Scribed by Hao, Jing-Jun ;Xu, Hu ;Song, Hai-Bing ;Wang, You-Ming ;Li, Zheng-Ming
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 135 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
The title compound, C 9 H 12 N 2 O 3 , was synthesized by the reaction in ethanol of ethane-1,2-diamine and 3-[bis(methylthio)methylene]-6-methyl-3,4,5,6-tetrahydro-2H-pyran-2,4dione. Two intramolecular N-HÁ Á ÁO hydrogen bonds induce a high degree of planarity.
📜 SIMILAR VOLUMES
The title compound, C 13 H 16 O 7 , was extracted from fresh cranberries (Vaccinium macrocarpon). In the crystal structure, molecules are linked into a two-dimensional framework via O-HÁ Á ÁO hydrogen bonds.
A view of (I) with the atomic numbering scheme. Displacement ellipsoids are drawn at the 30% probability level.
The title compound, C 14 H 14 N 2 O 3 , possesses C s symmetry, with the central CH 2 and C O atoms of the tetrahydropyrimidin-2-one group lying on the mirror plane. The molecule is bowshaped, with two symmetry-related intramolecular CÐHÁ Á ÁO hydrogen bonds. In the crystal structure, the molecules
3-(4-Methoxyphenyl)-1 0 0 0 ,6,6-trimethyl-4,5,6,7-tetrahydrospiro[1-benzofuran-2,3 0 0 0 (3H,2 0 0 0 H)-1H-indole]-2 0 0 0 ,4-dione