Benzyl Bromide → Methyl 3-(benzyloxy)benzoate

HRID 650472Notes

Reaction equation

HRID 650472 reaction equation
[H-].[Na+].[OH:3][C:4]1[CH:5]=[C:6]([CH:11]=[CH:12][CH:13]=1)[C:7]([O:9][CH3:10])=[O:8].[CH2:14](Br)[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1>CN(C=O)C>[CH2:14]([O:3][C:4]1[CH:5]=[C:6]([CH:11]=[CH:12][CH:13]=1)[C:7]([O:9][CH3:10])=[O:8])[C:15]1[CH:20]=[CH:19][CH:18]=[CH:17][CH:16]=1

Participants

5

Reactant 3

HCID 7498Benzyl BromideHCID 24758Sodium hydrideHCID 88068Methyl 3-Hydroxybenzoate

Product 1

HCID 13368031Methyl 3-(benzyloxy)benzoateYield 63.8%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a suspension of NaH (0.395 g, 9.87 mmol, 60% in mineral oil) in DMF (20 mL) was added methyl 3-hydroxybenzoate (1.0 g, 6.58 mmol). After stirring for 15 min at room temperature, benzyl bromide (1.1 g, 6.58 mmol) was added. After stirring at room temperature for 3h, the solution was partitioned between ethyl acetate and water. The organic layer was washed with water (2×75 mL), saturated aqueous sodium bicarbonate, and brine, then dried (MgSO4), filtered and concentrated to yield an off-white solid (1.013 g, 4.2 mmol). 1H NMR (400 MHz, CDCl3) d 7.67 (m, 2H), 7.48-7.34 (m. 6H), 7.19 (m, 1H), 5.12 (s, 2H), 3.95 (s, 3H).

Workup

  1. customthe solution was partitioned between ethyl acetate and water
  2. washThe organic layer was washed with water (2×75 mL), saturated aqueous sodium bicarbonate, and brine
  3. dry with materialdried (MgSO4)
  4. filtrationfiltered
  5. concentrationconcentrated

Sources & evidence

ORD record
ord-e5c54abfdd4d4a7f976aade4f26de904
Source dataset
uspto-grants-2001_08
Patent number
US06274336B1

Reaction notes

Loading…