Amines

Question 1

Amines

Answer 1

Have a N atom in place of their of a carbon in the chain

Question 2

Draw they 3 types of Amines

Answer 2

1) Propan- 1 - amine
2) N - methylpropan-1-amine
3) N,N - dimethylpropan-1-amin

Question 3

How can amines be produced

Answer 3

Nitration
Reduction of nitriles ( HA + CN- = nitriles)
nitrile is reduced to 1 amine

Question 4

What is the production of phenylamine

Answer 4

Nitrobenzene is reduced to phenylamine with a tin and HCl catalyst

Question 5

Why are amines weak bases

Answer 5

• They are proton acceptors
  ( The strength of the base depends on the availability of the lone pair of electrons on the N atom.

Question 6

Name in order the weakest to strongest amines

Answer 6

primary aliphatic amines - are the strongest

Primary aromatic - are the weakest

Question 7

Why is primary aliphatic amines the strongest

Answer 7

because the alkyl group releases electrons towards the Nitrogen atom this provides an PIE. This increases the electron density around the N atom making it a better electron pair donor.

Question 8

Why are primary aromatic amine compounds the weakest

Answer 8

Because the aromatic rings draws electron towards it away from the nitrogen.

Question 9

Where does the base strength of ammonia lie

Answer 9

Between aliphatic and aromatic

Question 10

What are Quaternary ammonium salts used for

Answer 10

Cationic surfactants
conditioners
disinfectant

Question 11

Ammonia and primary amines reach with both acyl chloride and acid anhydride in what type of reaction

Answer 11

N.A.E

Question 12

N.A.E mechanisms example