Solid state synthesis of ring-substituted aminobenzenesulphonic acids

摘要

Treatment of 2-methoxyaniline and 3,5-dichloroaniline with conc.H2SO4 in 2:1 molar ratio at RT affords the corresponding sulphate salts. These salts have been characterized by X-ray diffraction and spectral analyses. Both these salts are found to form ring substituted aminobenzenesulphonic acids in solid state, via proton transfer, under thermal and microwave irradiations.