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Rolf Stomberg ; Vratislav Langer (Institutionen för oorganisk miljökemi) ; Marcelle Hauteville
Acta Crystallographica Section E: Structure Reports (1600-5368). Vol. E58 (2002), 10, p. o1116-o1118.
[Artikel, refereegranskad vetenskaplig]

The crystal structure of the title compound, C20H22O6, an intermediate in the synthesis of the flavone 2-(4-methoxy-phenyl)-5,7-dimethoxy-3,8-dimethyl-4H-1-benzopyran-4-one, has been determined. The molecules are held together by van der Waals forces. There is an intramolecular hydrogen bond between the hydroxy group and the neighbouring keto O atom. The molecules in the crystal structure are disordered, with significantly different orientations of the methyl group in the disordered 4-methoxyphenyl substituent.

Nyckelord: X-ray diffraction, crystal structure, flavone, conformation, disorder

Denna post skapades 2006-08-29.
CPL Pubid: 9757


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