Benzyl Bromide → Benzyl 2-(3-(benzyloxy)phenyl)acetate

HRID 1180181Notes

Reaction equation

HRID 1180181 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]([CH2:8][C:9]([OH:11])=[O:10])[CH:5]=[CH:6][CH:7]=1.C(=O)([O-])[O-].[K+].[K+].[CH2:18](Br)[C:19]1[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1>CN(C=O)C>[C:19]1([CH2:18][O:1][C:2]2[CH:3]=[C:4]([CH2:8][C:9]([O:11][CH2:8][C:4]3[CH:5]=[CH:6][CH:7]=[CH:2][CH:3]=3)=[O:10])[CH:5]=[CH:6][CH:7]=2)[CH:24]=[CH:23][CH:22]=[CH:21][CH:20]=1

Participants

5

Reactant 3

HCID 7498Benzyl BromideHCID 11430Potassium CarbonateHCID 121223'-Hydroxyphenylacetic acid

Product 1

HCID 15470856Benzyl 2-(3-(benzyloxy)phenyl)acetateYield 198.6%

Reagents, catalysts & solvents 1

HCID 6228DimethylformamideSolvent

Procedure

To a solution of 3-hydroxyphenyl acetic acid (5.0 g, 0.03 mol) in DMF (25 ml) was added potassium carbonate (12.4 g, 0.09 mol). The reaction was allowed to stir for twenty minutes at which time benzyl bromide (8.9 ml, 0.075 mol) was added to the flask. The reaction was allowed to stir overnight. Solvent was removed. The reaction was diluted with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over MgSO4, filtered and concentrated to yield the title compound (9.9 g, 99% yield): ES-MS (m/z) 243 [M+H]+.

Workup

  1. additionwas added to the flask
  2. customSolvent was removed
  3. additionThe reaction was diluted with water
  4. extractionextracted with ethyl acetate
  5. washThe organic layer was washed with brine
  6. dry with materialdried over MgSO4
  7. filtrationfiltered
  8. concentrationconcentrated

Sources & evidence

ORD record
ord-c022eaba1cfe4f60bd1f66f6fa3c3cf6
Source dataset
uspto-grants-2007_10
Patent number
US07279489B2

Reaction notes

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