(E)-3-(2,3-Dimethoxyphenyl)-1-(2-hydroxy-4-methoxyphenyl)prop-2-en-1-one

Abstract

Key indicators: single-crystal X-ray study; T = 150 K; mean (C-C) = 0.004 Å; R factor = 0.064; wR factor = 0.139; data-to-parameter ratio = 12.8.The molecular conformation of the title compound, C 18 H 18 O 5 , is stabilized by a strong intramolecular hydrogen bond between the hydroxyl and carbonyl groups. The C C double bond displays an E configuration while the carbonyl group shows an S-cis configuration relative to the double bond. The dihedral angle between the two rings is 15.0 (1) . Related literature ExperimentalCrystal data Table 1 Hydrogen-bond geometry (Å , ).

(E)-1-(3-Bromophenyl)-3-(3,4-dimethoxyphenyl)prop-2-en-1-one

“…On the other hand, the spacer formed by C10-C9-C8-C7-O1-C1 can be considered as a plane with a RMSD of 0.029 Å. This feature is also observed in other chalcones (Escobar et al 2008;Valdebenito et al, 2010;Chu et al 2004;Radha Krishna et al 2005;Wu et al 2005).…”

“…For bichalcone derivatives, see: Shetonde et al (2010). For related structures, see: Escobar et al (2008); Valdebenito et al (2010); Chu et al (2004); Radha Krishna et al (2005); Wu et al (2005). Data collection: CrysAlis PRO (Agilent, 2011); cell refinement: CrysAlis PRO; data reduction: CrysAlis PRO; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: OLEX2 (Dolomanov et al, 2009); software used to prepare material for publication: OLEX2.…”