Question

how to prepare ethylamine from ethyl bromide ?​

Answer 1

Answer:

Ethyl amine is made from Hoffmann bromide Reaction in the laboratory. Ethyl amine is obtained by heating propionamide with a mixture of bromine and caustic potash.

Answer 2

Ethylamine from ethyl bromide

Explanation:

• Ethyl amine is made from Hoffmann bromide reaction in the laboratory.
• Ethyl amine is obtained by heating propionamide with a mixture of bromine and caustic potash.
• It is usually prepared by the addition of HBr to ethene: $H_{2}$C=$CH_{2}$+ HBr→ $H_{3}$C-C$H_{2}$Br.

• Bromoethane is inexpensive and would relay be prepared in the laboratory.
• Using Ethyl alcohol: When ethane reacts with bromine in presence of ALB$r_{3}$, ethyl bromide can be obtained.

• The reaction doesn't stop at a primary amine.
• The ethylamine also reacts with bromoethane- in the same two stages as before.

• In the first stage, you get a salt formed - this time, dimethylammonium bromide.
• The ammonia removes a hydrogen ion from the dimethylammonium ion to leave a secondary amine- dimethylamine.