Distinguish between primary, secondary, and tertiary amines.

The amines can be classified on the basis of the number of carbon atoms attached to the nitrogen atom of the amine group. They can be classified into primary, secondary, and tertiary amines. The amines can distinguish by the following methods: Test Primary amine Secondary amine Tertiary amine Reaction with Benzene sulphonyl chloride (Hinsberg Reagent) Water Soluble compound is formed Water-insoluble compound is formed No reaction Reaction with nitrous acid Alcohol is formed. Nitroso amine is formed. No reaction Reaction with diethyl oxalate Dialkyl oxamide is formed. Liquid oxamic ester is formed. No reaction Reactions with diethyl oxalate:

C 7 H 7 ON → KOH Br 2 B → COCl 2 C . Identify A, B, and C.

In the following chemical reaction, A is benzamide, B is aniline, and C is diphenyl urea. C 7 H 7 ON or C 6 H 5 - CONH 2 Benzamide → KOH Br 2 C 6 H 5 - CON H 2 Aniline → COCl 2 CO C 6 H 5 - NH 2 Di - phenyl urea

Aniline reacts with chloroform and alcoholic KOH and gives an offensive smelling liquid as a product. Write the reaction for it.

Aliphatic and aromatic primary amines when warmed with chloroform and an alcoholic solution of KOH ,which gives an offensive smelling liquid. This unpleasant and foul smell is of isocyanide or carbylamine formed as a product. This reaction is known as carbylamine reaction or isocyanide test. Therefore, the following chemical reaction will take place-

Nitrobenzene on reduction with Zn / NaOH gives :

C 6 H 5 − NH − NH − C 6 H 5

C 6 H 5 − N ↓ O = N − C 6 H 5

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Oxidation of aniline with acidified potassium dichromate gives:

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Classification of Amines

In this topic, we will understand the classifications of aliphatic and aromatic amines into primary, secondary, and tertiary amines. Watch and learn!

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Introduction to Cyanides and Isocyanides

An isocyanide (also called isonitrile or carbylamine) is an organic compound with the functional group -N≡C. It is the isomer of the related cyanide (-C≡N)....