In the racemic title compound, C20H16N2O5, the pyran ring adopts a shallow envelope conformation, with the stereogenic C atom displaced from the other atoms by 0.273 (2) Å. The dihedral angle between the fused-ring system and the pendant p-tolyl group is 87.62 (7)°. The molecular conformation is consolidated by an intramolecular N - H⋯O hydrogen bond, which generates an S(6) ring. In the crystal, molecules are linked by C - H⋯O interactions, resulting in  chains.
|Number of pages||2|
|Journal||Acta Crystallographica Section E: Structure Reports Online|
|Early online date||7 Feb 2015|
|Publication status||Published - 1 Mar 2015|
Bibliographical noteThe authors thank Dr Babu Varghese, SAIF, IIT, Chennai, India, for the data collection.
- Biological activity
- Chromene derivatives
- Crystal structure
- Hydrogen bonding