Received 29 March 2008
In the title compound, C17H12O4, the chromene unit is approximately planar, the maximum deviation from the mean plane being 0.0166 Å. The attached phenyl ring makes a dihedral angle of 53.2 (1)° with the fused ring system. The packing of the molecules in the crystal structure is governed by C-HO and O-HO hydrogen-bonding interactions.
Data collection: SMART (Bruker, 2002); cell refinement: SAINT (Bruker, 2002); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXL97.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: AT2554 ).
The authors thank the Materia Medica Institute of Taizhou University for supporting this work.
Bruker (2002). SADABS, SAINT and SMART. Bruker AXS Inc., Madison, Winsonsin, USA.
Da Re, P. (1960). US Patent 2921070.
Da Re, P. (1968). US Patent 3350411.
Ghoneim, M. M., El-Attar, M. A. & Razeq, S. A. (2007). Cent. Eur. J. Chem. 5, 496-507.
Sheldrick, G. M. (2008). Acta Cryst. A64, 112-122.
Sianesi, E. (1972). Ger. Patent 2059296.
Uneyama, K., Masatsugu, Y. & Torll, S. (1985). Bull. Chem. Soc. Jpn, 58, 2361-2365.