1 there are also several general references 2 6 which include the use of chlorosulfonic acid in the sulfonation of aliphatic compounds. Aliphatic compounds are generally less reactive towards ...

So chlorination is a feature of the attempted sulfonation of aromatic iodo compounds with chlorosulfonic acid (see Chapter 2, p 19); for instance, reaction of p-diiodobenzene with excess reagent (five ...