2-Oxo-2H-chromen-4-yl propionate

Abstract

In the title compound, C12H10O4, the atoms of the 2-oxo-2H-chromene ring system and the non-H atoms of the 4-substituent all lie on a crystallographic mirror plane. The molecular structure exhibits an intramolecular C—H...O hydrogen bond, which generates an S(6) ring. In the crystal, molecules form R32(12) trimeric units via C—H...O interactions which propagate into layers parallel to the ac plane. These layers are linked by weak C—H...O interactions along the [010] direction, generating a three-dimensional network.