Phenylamine

Question 1

Preparation of Phenylamine

Answer 1

1. Reduction of nitrobenzene

Question 2

Reduction of nitrobenzene

Answer 2

Type of reaction: reduction
Reagents: Step 1: Tin, conc. HCl / Step 2: NaOH
Conditions: heat under reflux
Change in functional group: aromatic nitro compounds –> aromatic amine

Question 3

With bromine water (react as an aromatic compound)

Answer 3

Type of reaction: bromination, electrophilic substitution
Conditions: mix at room temperature
Change in functional group: phenylamine –> 2, 4, 6 - tribromophenylamine
Observation: orange —> colourless, white precipitate

Question 4

With water (react as a primary amine)

Answer 4

Type of reaction: x
Conditions: x
Product: alkaline solution
C6H5NH2 + H2O ⇌ C6H5NH3+ + OH-

Question 5

With acid (react as primary amine)

Answer 5

Type of reaction: acid-base reaction
Conditions: x
Product: salt
C6H5NH2 + HCl ⇌ C6H5NH3Cl