1.1
Reagents:
Sodium acetate
Solvents:
Acetic acid
;
rt → 0 °C
1.2
Reagents:
Bromine
Solvents:
Water
;
35 min, 0 °C
1.3
Reagents:
Sodium pyrosulfite
Solvents:
Water
;
cooled
1.4
Reagents:
Sodium hydroxide
Solvents:
Water
;
pH 8, 40 °C