organic compounds
Open access
In the title isobenzofuranone derivative, C20H15NO2, the planar fused-ring system (r.m.s. deviation for the 10 fitted atoms = 0.031 Å) forms dihedral angles of 63.58 (6) and 63.17 (8)° with the N-bound phenyl rings; the dihedral angle between the planes of these phenyl rings is 85.92 (7)°. In the crystal, molecules are linked by weak C—HO interactions, involving both O atoms, forming helical supramolecular chains along [001].
data reports
Open access
In the title thiazolidine-4-one derivative, C20H21NO6S, the central thiazolidine ring is essentially planar (r.m.s. deviation for all non-H atoms = 0.0287 Å) and forms a dihedral angle of 88.25 (5)° with the methoxy-substituted benzene ring and 74.21 (4)° with the 1,3-benzodioxole ring. The heterocyclic ring (with two O atoms) fused to benzene ring adopts an envelope conformation with the non-ring-junction C atom as the flap. In the crystal, the molecules are linked into chains along [001] through weak C—HO interactions, forming R44(28) edge-fused rings.