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Ethyl 2-[(2-oxo-2H-chromen-6-yl)-oxy]acetate

Navneet Goyal¹, James P Donahue², Anthony Thompson¹

¹Department of Chemistry, Xavier University of Louisiana, 1 Drexel Dr., New Orleans, Louisiana 70125, USA.

Acta Crystallographica. Section E, Crystallographic Communications

|June 7, 2024

Abstract

None:

Ethyl 2-[(2-oxo-2H-chromen-6-yl)-oxy]acetate, C₁₃H₁₂O₅, a member of the pharmacologically important class of coumarins, crystallizes in the monoclinic C2/c space group in the form of sheets, within which mol-ecules are related by inversion centers and 2₁ axes. Multiple C-H⋯O weak hydrogen-bonding inter-actions reinforce this pattern. The planes of these sheets are oriented in the approximate direction of the ac face diagonal. Inter-sheet inter-actions are a combination of coumarin system π-π stacking and additional C-H⋯O weak hydrogen bonds between ethyl acet-oxy groups.

Keywords:

chromen-2-one coumarin crystal structure sheet structure weak C—H⋯O H-bonding π–π stacking

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