Heppolette, Robert L.; Miller, Joseph published an article in 1954, the title of the article was SO2X compounds in aromatic nucleophilic substitution.Product Details of 97-09-6 And the article contains the following content:
cf. C.A. 47, 6884a. By the displacement of Cl with MeO- ion in 4-Cl 3-O2N compounds the relative reaction rates are obtained where the 1-substituent is H, 1; SO3-, 31.9; SO2NH-, 50.2; SO2NMe2, 26100; SO2Me, 52900; SO2Ph, 76000. The results show: p-SO2X groups are activating; SO2X groups are more activating than COX groups; the activating power varies with X and is parallel to that in the COX groups. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Product Details of 97-09-6
3-Nitro-4-chlorobenzenesulfonamide(cas:97-09-6) belongs to amides. Amides are pervasive in nature and technology. Proteins and important plastics like Nylons, Aramid, Twaron, and Kevlar are polymers whose units are connected by amide groups (polyamides); these linkages are easily formed, confer structural rigidity, and resist hydrolysis. Product Details of 97-09-6
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics