Date Published: March 01, 2012
Publisher: International Union of Crystallography
Author(s): Sheng-Yin Zhao, Jing Huang.
The title compound, C16H19NO5, which was synthesized from p-methoxycinnamic acid, has intramolecular O—H⋯O and N—H⋯O hydrogen-bonding interactions. In the crystal, molecules are linked by weak C—H⋯O hydrogen bonds and aromatic π–π stacking interactions [minimum ring centroid–centroid separation = 3.790 (1) Å].
For applications of 4-hydroxy-2-pyridones, see: Jessen & Gademann (2010 ▶). For general background to the synthesis and characterization, see: Rigby & Burkhardt (1986 ▶); Rigby & Qabar (1989 ▶); Tang et al. (2011 ▶).