N-(2-Aminopyridin-3-yl)-4-methyl-N-(4-methylphenylsulfonyl)benzenesulfonamide

Abstract

The title compound, C19H19N3O4S2, was prepared by the reaction of 2,3-diaminopyridine with tosyl chloride in a mixture of dichloromethane–pyridine as solvent. In the crystal, molecules associate via pairs of N—H...N hydrogen bonds, forming a centrosymmetric eight-membered {...HNCN}2 synthon. The dihedral angles between the aminopyridine ring and the tosyl benzene rings are 50.01 (6) and 32.01 (4)°.