AROMATIC AMINES AND THEIR SIMPLE DERIVATIVES

AHOMATIC AMINES AND THEIR SIMPLE DERIVATIVES AROMATIC AMINES 

Aromatic amines may be divided into three classes — 

Arylamines are generally prepared by the reduction of nitro compounds. When only small quantities are to be reduced and the time element is important and cost is a secondary consideration, tin and hydrochloric acid may be employed, for example  

CgHgNOj + 6H — C.HgNH, + 2H.,0 The various stages in the reduction may be represented as follows  

Sn + 2HC1 — SnCli + 2H stannous chloride is itself an excellent reducing agent  

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