[2-Methyl-4-(3-oxo-1,3-dihydroisobenzofuran-1-ylamino)phenyl] isobenzofuran-1(3H)-one

Abstract

The crystal structure of the title compound, C23H17NO4, is stabilized by intermolecular N-(HO)-O-... and C-(HO)-O-... hydrogen bonds and C-H-...pi interactions. The C-(HO)-O-... hydrogen bonds link the molecules into ladders whose uprights form C(7) chains and whose rungs enclose R-2(2)(28) rings. These motifs generate a three-dimensional network by N-(HO)-O-... hydrogen bonds and C-H-...pi interactions. The phthalide ring systems of the molecule are almost planar and form dihedral angles of 64.1 (3) and 88.3 (3)degrees with the benzene ring.