Water → 5-Bromo-2-methoxyphenol
Reaction equation
[C:1]([O:9][C:10]1[CH:15]=[CH:14][C:13]([Br:16])=[CH:12][C:11]=1[O:17]C)(=O)C1C=CC=CC=1.[OH-].[Na+].O>C(O)C>[Br:16][C:13]1[CH:14]=[CH:15][C:10]([O:9][CH3:1])=[C:11]([OH:17])[CH:12]=1Participants
5
Reactant 3
Product 1
Reagents, catalysts & solvents 1
Procedure
A mixture of 4-bromo-2-methoxyphenyl benzoate (5 g), sodium hydroxide (3 g), water (5 mL) and ethanol (50 mL) is heated at reflux for 1.5 hours. It is then evaporated to low bulk and the resulting residue is treated with water (20 mL) and concentrated hydrochloric acid (10 mL), and extracted with dichloromethane (150 mL). The organic solution is extracted with saturated aqueous sodium bicarbonate solution (3×25 mL), dried over magnesium sulphate and evaporated, to give 5-bromo-2-methoxyphenol (3.25 g), in the form a colorless solid, m.p. 67°-68° C. [Elemental analysis: C,41.5; H,3.5; Br, 37.8%; calculated: C,41.6; H,3.5; Br, 39.5%].