Synthesis of Organoselenium Sulfonamides as New Potential Cytokine Inducers: 2,2′-Diselenobis(benzenesulfonamides) and 1,3,2-Benzothiaselenazolone 1,1-Dioxides
method for the synthesis of 2,2′-diselenobis(benzenesulfonamides) 4 and 2-substituted 1,3,2-benzothiaselenazole 1,1-dioxides 2, has been elaborated. It is based on the conversion of 2-aminobenzenesulfonic acid into bis[2-(chlorosulfonyl)phenyl] diselenide (6), and reaction with ammonia or primary amines to give the sulfonamides 4. Finally, cyclization of these sulfonamides by oxidation with benzoyl peroxide