Experimental Crystal data

R factor = 0.050; wR factor = 0.148; data-to-parameter ratio = 21.6. In the title compound, C25H20N2O5S, the benzodioxole ring system is essentially planar [maximum deviation = 0.021 (2) Å] and forms dihedral angles of 85.2 (1) and 74.2 (1), respectively, with the formyl benzene and sulfonyl-bound benzene rings. In the crystal, C—H O hydrogen bonds generate C(8) chains along [100] and R3 3(19) ring motifs. In addition, a weak – interaction [centroid–centroid distance = 3.937 (3) Å] is also observed. Related literature For background to the pharmacological uses of sulfonamides