(E)-2,2′-[3-(4-Chlorophenyl)prop-2-ene-1,1-diyl]bis(3-hydroxy-5, 5-dimethylcyclohex-2-en-1-one)

Abstract

The title compound, C25H29ClO4, adopts a trans conformation about the C=C double bond and the dimethylcyclohexenone rings both show an envelope conformation with the dimethyl-substituted C atom as the flap. In the molecule, the hydroxy and carbonyl groups form two intramolecular O - H？O hydrogen bonds typical for xanthene derivatives. In the crystal, weak C - H？O hydrogen bonds link the molecules into chains running parallel to the a-axis direction.