9-(4-Methoxyphenyl)-3,3,6,6-Tetramethyl-3,4,6,7-Tetrahydro-2H-Xanthene-1,8(5H, 9H)-Dione

Abstract

In the mol-ecule of the title compound, C24H28O4, the three six-membered rings of the xanthene system are not planar, having envelope, boat and envelope conformations. In the crystal structure, C - H⋯O hydrogen bonds link the mol-ecules, generating centrosymmetric R 2 2(12), R 4 4(28) and R 2 2(16) ring motifs and forming a three-dimensional network.