Engineering
Chemistry
Preparation of Amines
Test of amines
Question

What is the principle product when aniline is treated with NaNO2 and HCl at 0−5°C, and this mixture is added to p-toludine (p-methyl aniline)?

  

  

 

 

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Solution
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When aniline is treated with sodium nitrite and HCl in cold conditions, benzene diazonium chloride is obtained.
Benzene diazonium chloride is then coupled with p-methyl aniline to obtain 4-methyl-2-(phenyldiazenyl) aniline as the principle product.

 

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