Acta Cryst. (2005). E61, o3930-o3932  [ doi:10.1107/S1600536805034823 ]

2,3-Dihydro-7-hydroxy-3-[(4-methoxyphenyl)methylene]-4H-1-benzopyran-4-one

S. Boonsri, S. Chantrapromma, H.-K. Fun, C. Karalai, A. Kanjana-opas and S. Anjum

Abstract: The title compound, C₁₇H₁₄O₄, a homoisoflavanoid, was isolated from the twigs and stems of Caesalpinia digyna Rottler. The pyran ring adopts an envelope conformation. The symmetry-related molecules are linked via O-HO and C-HO intermolecular hydrogen bonds to form a molecular network.

Online 31 October 2005

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