Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 8 (August 2013)


organic compounds



ff2111 scheme

Acta Cryst. (2013). E69, o1296    [ doi:10.1107/S160053681301934X ]

3-[1-(2-Hydroxyanilino)ethylidene]-3H-chromen-2,4-dione

A. Brahmia, T. Ben Ayed and R. Ben Hassen

Abstract: The title compound is a new aminocoumarin derivative, C17H13NO4, and was synthesized by the condensation of 2-aminophenol and 3-acetyl-4-hydroxycoumarin. An intramolecular N-H...O hydrogen bond generates an S(6) ring motif. In the crystal, the molecules are linked into chains extending in the [010] direction by O-H...O hydrogen bonds. There is also a [pi]-[pi] stacking interaction between the bicyclic coumarin fragment and the phenol ring [centroid-centroid distance = 3.7510 (14) Å], and these ring systems form between them a dihedral angle of 53.3 (2)°. Intermolecular hydrogen bond C-H...O hydrogen bonding is also observed in the interconnection of the crystal packing.


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