Crystal structure of 7-hydroxy-8-[(4-methylpiperazin-1-yl)methyl]-2H-chromen-2-one

Abstract

In the title compound, C15H18N2O3, the coumarin ring is essentially planar, with an r.m.s. deviation of 0.012 Å. An intramolecular O—H...N hydrogen bond forms anS(6) ring motif. The piperazine ring adopts a chair conformation. In the crystal, a C—H...O hydrogen bond generates aC(4) chain motif running along thecaxis. The chain structure is stabilized by a C—H...π interaction. The chains are linked by π–π interactions [centroid–centroid distance of 3.5745 (11) Å], forming a sheet structure parallel to thebcplane.