3,5-Bis(4-methyl­benzoyl)-2,6-bis­(4-methyl­phenyl)-4H-pyran-4-one

Abstract

The title compound, C<inf>35</inf>H<inf>28</inf>O<inf>4</inf>, is a tetrasubstituted 4H-pyran-4-one with 2,6-bis(p-tolyl) and 3,5-bis(p-toluyl) substituents. The pyran ring is almost planar; the planes of the toluyl substituents are approximately orthogonal to the pyran mean plane [both dihedral angles are equal to 86.2 (1)°}, whereas the tolyl planes form with the latter much smaller dihedral angles of 32.5 (1) and 47.2 (1)°. The crystal structure features two intramolecular C-H···O contacts and a C-H···π(ring) interaction, with an H···Cg distance of 2.70 (3) Å (Cg is the centroid of one of the benzene rings). © 2004 International Union of Crystallography Printed in Great Britain - all rights reserved.