7-Diethylamino-3-dimethylamino-2H-1-benzopyran-2-one
✍ Scribed by Takahashi, Hajime ;Takechi, Haruko ;Kubo, Kanji ;Matsumoto, Taisuke
- Publisher
- International Union of Crystallography
- Year
- 2005
- Tongue
- English
- Weight
- 264 KB
- Volume
- 61
- Category
- Article
- ISSN
- 1600-5368
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✦ Synopsis
In the title compound, C 15 H 20 N 2 O 2 , the N atom of the diethylamine group has a planar environment, whereas the N atom of the dimethylamine group is pyramidal. Intermolecular C-HÁ Á Á and C-HÁ Á ÁO interactions are observed in the crystal structure.
📜 SIMILAR VOLUMES
Highly enantioselective reduction of 3,4-dihydro-2,2-dimethyl-2H-l-benzopyran-4-ones 3 s-e by BH3 was achieved in the presence of catalytic amounts of Corey's oxazaborolidine 4 to afford the corresponding 3,4-dihydro-2,2dimetbyl-2H-l-~nzopyran-4-ols 2a-e in quantitative yields. These benzopyran-4-ol
In the title molecular structure, C~14~H~15~NO~4~, all non-H atoms, except for the C atoms of the terminal methyl groups of the diethylamino substituents, are essentially coplanar. In the crystal structure, a two-dimensional network is formed __via__ weak intermolecular C—H...O hydrogen bonds and π–