rac-Dimethyl 2-(tert-butylamino)-5-oxo-4,5-dihydropyrano[3,2-c]chromene-3,4-dicarboxylate
The title compound, C20H21NO7, is asymmetric with a chiral centre located in the pyran ring and crystallizes as a racemate. The molecular framework is somewhat bent; the coumarin moiety and the pyran ring are inclined by 7.85 (5)°. The molecular structure is characterized...
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
International Union of Crystallography
2011-11-01
|
| Series: | Acta Crystallographica Section E |
| Online Access: | http://scripts.iucr.org/cgi-bin/paper?S1600536811041493 |
| Summary: | The title compound, C20H21NO7, is asymmetric with a chiral centre located in the pyran ring and crystallizes as a racemate. The molecular framework is somewhat bent; the coumarin moiety and the pyran ring are inclined by 7.85 (5)°. The molecular structure is characterized by an intramolecular N—H...O hydrogen bond, which generates an S(6) ring motif, and the crystal packing is stabilized by intermolecular C—H...O hydrogen bonds. The 3-carboxylate O atom is involved in both of them, having a bifurcated character. |
|---|---|
| ISSN: | 1600-5368 |