Potassium Carbonate → HCID 66906613, compound

HRID 1915145Notes

Reaction equation

HRID 1915145 reaction equation
[CH3:1][O:2][C:3](=[O:15])[C:4]1[C:5](=[C:10]([OH:14])[CH:11]=[CH:12][CH:13]=1)[C:6]([O:8][CH3:9])=[O:7].C(=O)([O-])[O-].[K+].[K+].[F:22][C:23]1[CH:24]=[C:25]([CH:28]=[CH:29][CH:30]=1)[CH2:26]Br>CC(C)=O>[CH3:1][O:2][C:3](=[O:15])[C:4]1[C:5](=[C:10]([O:14][CH2:26][C:25]2[CH:28]=[CH:29][CH:30]=[C:23]([F:22])[CH:24]=2)[CH:11]=[CH:12][CH:13]=1)[C:6]([O:8][CH3:9])=[O:7]

Participants

5

Reactant 3

HCID 11430Potassium CarbonateHCID 680073-Fluorobenzyl bromideHCID 12223651Dimethyl 3-hydroxyphthalate

Product 1

HCID 66906613HCID 66906613, compoundYield 112.5%

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

To a stirred suspension of 3-hydroxyphthalic acid dimethyl ester (1.4 g, 6.7 mmol) in acetone (30 mL) and potassium carbonate (2.8 g, 20 mmol) was added 3-fluorobenzyl bromide (0.89 mL, 7.0 mmol) and refluxed overnight. The solvent was evaporated and the residue was partitioned between water (100 mL) and ethyl acetate (50 mL) and washed with water (2×100 mL). The combined organic phases was dried, concentrated and purified by flash column chromatography (EtOAc/Hexane) to give 3-(3-fluoro-benzyloxy)-phthalic acid dimethyl ester (2.4 g, 113% crude yield). The product was used in the next step without further purification.

Workup

  1. temperaturerefluxed overnight
  2. customThe solvent was evaporated
  3. customthe residue was partitioned between water (100 mL) and ethyl acetate (50 mL)
  4. washwashed with water (2×100 mL)
  5. customThe combined organic phases was dried
  6. concentrationconcentrated
  7. custompurified by flash column chromatography (EtOAc/Hexane)

Sources & evidence

ORD record
ord-e257c9dcd097469794059cd66d8909bc
Source dataset
uspto-grants-2013_12
Patent number
US08614328B2

Reaction notes

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