Acta Cryst. (2005). E61, o2340-o2342  [ doi:10.1107/S1600536805020325 ]

7a-O-Methyldeguelol

S. Chantrapromma, H.-K. Fun, Y. Pullaput, H. Wongtap, S. Dejmanee and K. Chantrapromma

Abstract: The title compound, (6,7-dimethoxy-3,4-dihydro-2H-chromen-4-yl)(5-methoxy-2,2-dimethyl-2H-chromen-6-yl)methanone, C₂₄H₂₅O₆, is a modified rotenoid. In the crystal structure, the chromene ring is disordered, together with its attached methyl and methoxy groups. The molecules are packed as layers parallel to the ac plane. These layers are interconnected through C-HO interactions to form a three-dimensional network.

Online 6 July 2005

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