title: 6-Butyryl-5-hy-droxy-4-phenyl-seselin.
abstract: IN THE TITLE COUMARIN COMPOUND (SYSTEMATIC NAME: 6-butyryl-5-hy-droxy-8,8-dimethyl-4-phenyl-2H,8H-benzo[1,2-b;3,4-b']dipyran-2-one), C(24)H(22)O(5), also known as mammea A/AC cyclo D, the chromene and pyran rings are almost coplanar with a maximum deviation from the mean plane of 0.295 (2) Å. The attached phenyl group is inclined at 53.49 (8)° with respect to the chromene ring. The mol-ecular structure is stabilized by an intra-molecular O-H⋯O hydrogen bond. In the crystal, mol-ecules are linked into sheets parallel to (101) by inter-molecular C-H⋯O hydrogen bonds. Adjacent sheets are sustained by inter-molecular C-H⋯π and π-π [centroid-centroid distance = 4.471 (2) Å] inter-actions.
authors: Department of Chemistry, Faculty of Science, Chulalongkorn University, Phyathai Road, Pathumwan, Bangkok 10330, Thailand.
authors: Thammarat
authors: T
authors: Aree
authors: Santi
authors: S
authors: Tip-Pyang
authors: Preecha
authors: P
authors: Sowanthip
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