Amines

Question 1

How are amines prepared from akylhalides?

Answer 1

Primary amines are prepared by reacting akylhalides and ammonia in the presence of water and base. (Aminolysis)

Reaction

Question 2

What are the physical properties of amines?

Answer 2

1. Amines have a choking sell.
2. Amines are polar compounds and have intermolecular hydrogen bonding with the exception of tertiary amines. Hence, lower amines are soluble in water.

Question 3

What is the functional group of amines?

Answer 3

NH2

Question 4

How are amines prepared from nitroalkanes?

Answer 4

Amines are prepared from nitroalkanes in the presence of Tin, HCl, and heat.

Reaction

Question 5

How are amines prepared from nitrides?

Answer 5

Amines are prepared from the reduction of nitrides by the reducing agent LiAlH4.

Reaction

Question 6

How are amines prepared?

Answer 6

1. Substitution reaction between alkylhalides and ammonia in the presence of water and a base (NaOH).
2. Reduction of nitroalkanes in the presence of heat, tin, and HCl.
3. Reduction of alkane nitrides in the presence of LiAlH4