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ChemicalBook CAS DataBase List p-formylbenzenesulphonic acid

p-formylbenzenesulphonic acid synthesis

5synthesis methods
4-Formylbenzenesulfonic acid (p-formylbenzenesulphonic acid) is produced by oxidation of p- toluenesulfonic acid with manganese dioxide in 25% oleum or by oxidation of p-toluenesulfonyl chloridein glacial acetic acid – acetic anhydride with chromium trioxide and concentrated sulfu- ric acid at 0 ℃ and hydrolysis of the sulfonyl chloride of the aldehyde-hydrate diacetate with dilute hydrochloric acid.
-

Yield:-

Reaction Conditions:

with manganese(IV) oxide;sulfuric acid

References:

Chem.Fabr.vorm.Sandoz DE154528, 1800, C [Fortschr. Teerfarbenfabr. Verw. Industriezweige,vol. 7,p. 108][Fortschr. Teerfarbenfabr. Verw. Industriezweige,vol. 7,p. 108]