Chlorosulphonation of 2-anilino-1,4-naphthoquinone and synthesis of newer sulphonyl derivatives

Abstract

Synthesis of 2-anilino-1,4-napthoquinone-3-sulphonyl chloride (2) was achieved from the reaction of the title compound with chlorosulphonic acid. The interesting derivative 2 was used as a building block for synthesis of the sulphonyl derivatives 3-24. All these sulphonyl derivatives were characterized by the physical and spectral data (IR, Mass, 1H- and 13C NMR spectra).