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ChemicalBook CAS DataBase List 3-Bromo-4-fluorophenol
27407-11-0

3-Bromo-4-fluorophenol synthesis

3synthesis methods
-

Yield:-

Reaction Conditions:

Stage #1: (3-bromo-4-fluorophenyl) acetatewith sodium hydroxide in ethanol;water; for 20 h;
Stage #2:
Stage #3: with hydrogenchloride in ethanol;water;

Steps:

25.2

Step 2: To the product of Step 1 (2.05 g, 8.8 mmol) in EtOH (20 ml) add 1N NaOH (17.5 ml). Stir 20 h, neutralize with 1N HCl, concentrate, and partition with CH2Cl2 and water. Wash with brine, dry (MgSO4) and concentrate to obtain the phenol as a yellow oil

References:

US2004/220194,2004,A1 Location in patent:Page 19; 20

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