Acta Crystallographica Section E (Sep 2010)
5-(4-Hydroxybenzylidene)-2,2-dimethyl-1,3-dioxane-4,6-dione
Abstract
The title compound, C13H12O5, was prepared by the reaction of 2,2-dimethyl-1,3-dioxane-4,6-dione and 4-hydroxybenzaldehyde in ethanol. The 1,3-dioxane ring is in a distorted boat conformation. In the crystal, inversion dimers linked by pairs of O—H...O hydrogen bonds generate R22(20) rings.