1-[4-(3,5-Difluoro-benz-yloxy)-2-hy-droxy-phen-yl]ethanone

Abstract

The title compound, C(15)H(12)F(2)O(3), has been obtained by the reaction of 2,4-dihy-droxy-lacetonephenone, potassium carbonate and 3,5-difluoro-benzyl bromide. The hy-droxy group is involved in an intra-molecular O-H⋯O hydrogen bond in each of the two independent mol-ecules in the asymmetric unit. The dihedral angle between the aromatic rings is 0.5 (2)° in one molecule and 1.9 (2)° in the other. In the crystal, weak C-H⋯O inter-actions link the mol-ecules into tetra-meric units aligned perpendicular to b.

Fig. 1.

The molecular structure of (I). Displacement ellipsoids are drawn at the 30% probability level. Both the C—H···O interaction and the intramolecular hydrogen bonds are shown by dashed lines.

Fig. 2.

The packing viewed down the b axis showing the tetrameric units linked by C—H···O interactions. Both these interactions and the intramolecular hydrogen bonds are shown by dashed lines.