Recognising reagents - aromatic

Question 1

Sn, conc. HCl

Answer 1

NO2 to NH2

Question 2

Br2

Answer 2

• NH2 on benzene to (NH2 with 3 Br)
• Phenol to bromophenol (with 3 Br)

Question 3

conc. HNO3, conc. H2SO4

Answer 3

Benzene to nitrobenzene (NO2)

Question 4

Br2/AlBr3 or Fe or FeBr3

Answer 4

Benzene to bromobenzene (1)

Question 5

Cl2/AlCl3 or Fe or FeCl3

Answer 5

Benzene to chlorobenzene

Question 6

CH3COCl, AlCl3

Answer 6

Benzene to benzene with C=OCH3 attached (acylation)

Question 7

NaBH4

Answer 7

Ketone group to alcohol - C=O to OH, H added to C

Question 8

CH3Cl/AlCl3

Answer 8

Benzene to methylbenzene

Question 9

NaOH (aq)

Answer 9

Phenol’s OH to O-Na+

Question 10

dilute HNO3 (aq)

Answer 10

Phenol to phenol with NO2 substituted in 2,4 positions