AROMATIC SULPHONIC ACIDS AND THEIR DERIVATIVES

The following structures indicate the range of aromatic sulphonic acids (1), sulphinic acids (2), sulphonyl chlorides (3), sulphonamides (4) and sulphonate esters (5) to be discussed below. 

The reaction processes described in this section are as follows. 

The preparation of arylsulphonic acids by direct sulphonation (Expts 6.37 to 6.40). 

The preparation of arylsulphonamides from arylsulphonyl chlorides (Expts 6.42 to 6.45). 

The preparation of arylsulphonate esters from arylsulphonyl chlorides (Expt 6.46). 

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