SEARCH Articles Figures Tables 1,3-Disulfonamide 1,3-Disulfonamide Aniline-2,4-disulfonamide Benzene-1,3-disulfonamide Chiral disulfonamide Chiral ligands disulfonamide Cyclopropanation chiral disulfonamide Naphthalene-1,3-disulfonamide