Lavrishchev, V. A.; Kretov, A. E. published an article in 1962, the title of the article was Reaction of unsymmetric substituted ureas on melting with 4-chloro-3-nitrophenyl alkyl(aryl) sulfones and sulfonamides.Name: 3-Nitro-4-chlorobenzenesulfonamide And the article contains the following content:
cf. CA 55, 18646h. Fusion of a sulfone or sulfonamide of general type 4,3-Cl(O2N)C6H3SO2R or 4,3-Cl(R2NSO2)C6H3NO2, resp., with unsym. substituted ureas in 1:4 molar ratio at 200° gave after treatment with EtOH some cyanuric acid and the following amines (urea derivative and the product shown, resp.): methylurea, 4-methylsulfonyl-2-nitrophenylmethylamine m. 190-1°, dimethylurea, 4-methylsulfonyl-2-nitrophenyldimethylamine m. 135-6°; phenylurea, 4-methylsulfonyl-2-nitrodiphenylamine m. 133-4°; p-anisylurea, 4-methylsulfonyl-2-nitro-4′-methoxydiphenylamine m. 168-9°; p-ethoxyphenylurea, 4-methylsulfonyl-2-nitro-4′-ethoxydiphenylamine m. 130-1°; methylurea, 4-N-methylsulfonamido-2-nitrophenylmethylamine m. 180-1°; dimethylurea, 4-N-methylsulfonamido-2-nitrophenyldimethylamine m. 158-9°; p-anisylurea, 4-N-methylsulfonamido-2-nitro-4′-methoxydiphenylamine m. 170-1°; p-ethoxyphenylurea, 4-N-methylsulfonamido-2-nitro-4′-ethoxydiphenylamine m. 179-80°; methylurea, 4-N-dimethylsulfonamido-2-nitrophenylmethylamine m. 149-50°; dimethylurea, 4-N-dimethylsulfonamido-2-nitrophenyldimethylamine m. 103-4°; p-anisylurea, 4-N-dimethylsulfonamido-2-nitro-4′-methoxydiphenylamine m. 124-5°; p-ethoxyphenylurea, 4-N-dimethylsulfonamido-2-nitro-4′-ethoxydiphenylamine m. 126-7°; methylurea, 4-sulfonamido-2-nitrophenylmethylamine m. 212-13°; dimethylurea, 4-sulfonamido-2-nitrophenyldimethylamine m. 147-8°; methylurea, 4-phenylsulfonyl-2-nitrophenylmethylamine m. 154-5°; dimethylurea, 4-phenylsulfonyl-2-nitrophenyldimethylamine m. 104-5°; phenylurea, 4-phenylsulfonyl-2-nitrodiphenylamine m. 147-8°; p-anisylurea, 4-phenylsulfonyl-2-nitro-4′-methoxydiphenylamine m. 153-4°; p-ethoxyphenylurea, 4-phenylsulfonyl-2-nitro-4′-ethoxydiphenylamine m. 139-40°; methylurea, 4-benzylsulfonyl-2-nitrophenylmethylamine m. 182-3°; dimethylurea, 4-benzylsulfonyl-2-nitrophenyldimethylamine m. 121.5-2.5°; phenylurea, 4-benzylsulfonyl-2-nitrodiphenylamine m. 182.5-3°; p-anisylurea, 4-benzylsulfonyl-2-nitro-4′-methoxydiphenylamine m. 185-6°; p-ethoxyphenylurea, 4-benzylsulfonyl-2-nitro-4′-ethoxydiphenylamine m. 162.5-3.5°; dimethylurea, 2-N-methylsulfonamido-4-nitrophenyldimethylamine m. 127-8°. p-Phenetidine and 4-chloro-3-nitrophenyl methyl sulfone fused as above gave product, m. 130-1°, identical with 4-methylsulfonyl-2-nitro-4′-ethoxydiphenylamine shown above. 4-N-Dimethylsulfonamido-2-nitrophenyldimethylamine, m. 103-4°, was also prepared according to Eliel and Nelson (CA 50, 11965c); E. and N. reported 182-3°. Yields of the above amines are best with 1:4 reactant ratio; equimolar mixtures gave lower yields. The experimental process involved the reaction of 3-Nitro-4-chlorobenzenesulfonamide(cas: 97-09-6).Name: 3-Nitro-4-chlorobenzenesulfonamide
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. Name: 3-Nitro-4-chlorobenzenesulfonamide
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics