Benzene-1,3,5-triyl triacetate

Abstract

The asymmetric unit of the title compound, C12H12O6, contains two essentially identical molecules related by a pseudo-inversion centre. The three acetoxy groups in each molecule are essentially planar and are tilted, in a regular propeller-style arrangement, with their normals oriented between 56.72 (12) and 76.35 (9)° from the normal to the mean plane of the central C6 ring; in each molecule the three carbonyl O atoms are on the same side of the C6 ring, with the Cring—O—C—Me bonds in a trans conformation. The principal intermolecular contacts appear to be C—H...π-ring interactions; each C6 ring has such a contact to both faces of the ring; in addition, each molecule has two intermolecular C—H...O contacts with H...O distances less than 2.55 Å.