Chlorobenzenesulfonic acid

Amino-2-chlorobenzenesulfonic acid 2-Amino-5-chlorobenzoic acid 5-Amino-2-chlorobenzoic acid 2-Amino-5-chiorobenzophenone 2-Amino-4-chioro-5-methyibenzenesuifonic acid... 

By condensation of a biphenol with 2-fluoro-5-nitrobenzenesulfonic acid sodium salt [79,80] or 5-amino-2-chlorobenzenesulfonic acid [81], some sulfonated diamines bearing the siflfonic group on the terminal amino phenyl ring can be synthesized (Fig. 8). 

Chlorobenzenesulfonic Acid 80 25 >30 6 Resistant -0.3-2 85-115 Solef Solvay Polymers Specimen Solef 1008, 1010 and 1012, 2 mm thick test pieces... 

Chlorobenzenesulfonic Acid Chlorinated Polyvinyl Chloride (CPVC) Ethylene Chlorotrifluoroethylene Copolymer (ECTFE) 0-2... 

RN 4304-40-9 MF C H2oNOS C6H4CIO3S MW 454.01 EINECS 224-318-6 CN iV,)V-dimethyl-/V-(2-phenoxyethyl)-2-thiophenemethanaminium salt with 4-chlorobenzenesulfonic acid (1 1)... 

A solution of free base of the last compound and p-chlorobenzenesulfonic acid (molar ratio 1 1) were reacted together in boiling acetone. After 30 min the solution was cooled and ethyl acetate added to precipitate a colourless solid of N,N-dimethyl-N-(2-phenoxyethyl)-N-(2-thenyl)ammonium 4-chlorbenzolsulfonate. 

C6H5C103S 4-chlorobenzenesulfonic acid 98-66-8 gas 5.246 2 8400 C6H120 cyclohexanol 108-93-0 in CCI4 1.859 1... 

The chlorine is an ortho/para director and the sulfonic acid group is a meta director. Since the desired product is p-chlorobenzenesulfonic acid, the chlorine should be introduced first so it can direct the sulfonic acid group para. 

Chlorobenzenesulfonic Acid aqueous solution or pure 93 8 sxp. ts p, is max. recom. Atochem Kynar... 

If the reaction is carried out as a single-stage reaction starting from chlorobenzene, without isolation of the intermediate chlorobenzenesulfonyl chloride, care must be taken to ensure that sulfonic acid, thionyl chloride and sulfur chlorides, as impurities in the thionyl chloride, are no longer present in the reaction mixture, since the free sulfonic acid causes deactivation of the catalyst, and thionyl chloride and sulfur chlorides Ukewise lead to undesirable byproducts. A further difficulty is that iVA -dimethyl-formamide is required for complete conversion of chlorobenzenesulfonic acid with thionyl chloride into the corresponding sulfonyl chloride, carcinogenic A,A-dimethylcarbamyl chloride being formed as a byproduct. 

Another synthesis route for bis-(4-chlorophenyl)-sidfone is the reaction of chlorobenzene and chlorobenzenesulfonic acid. At 220-260°C at an elevated pressure of 1.7 bar, bis-(4-chlorophenyl)-sulfone is obtained in a good yield. 

Chlorobenzene, 23, 241, 242, 291 4-Chlorobenzenesulflnate, 245 Chlorobenzenesulfonic acid, 242 4-Chlorobenzenesulfonyl chloride, 241... 

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