Methyl Salicylate → HCID 67412786, compound

To a solution of methyl salicylate (0.637 g, 4.19 mmol) in N,N-dimethylformamide (8 ml) were added chloromethyl propyl ether (0.50 ml, 4.54 mmol) and potassium carbonate (0.755 g, 5.46 mmol), and the mixture was stirred at room temperature for 20 hr. Ethyl acetate was added to the reaction mixture, the mixture was washed with water, and the organic layer was dried over sodium sulfate. The solvent was evaporated under reduced pressure, and the obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate) to give methyl 2-propoxymethoxybenzoate (0.414 g, 1.85 mmol, yield 44%). This was dissolved in methanol (5 ml), 1N-aqueous sodium hydroxide solution (5 ml) was added at room temperature, and the mixture was stirred at room temperature for 20 hr. The reaction mixture was concentrated under reduced pressure and neutralized with 5% aqueous citric acid solution, and the mixture was extracted with ethyl acetate. The extract was dried over sodium sulfate, and the solvent was evaporated under reduced pressure to give a carboxylic acid compound 2-propoxymethoxybenzoic acid (0.374 g, 1.78 mmol, yield 96%).

1. washthe mixture was washed with water
2. dry with materialthe organic layer was dried over sodium sulfate
3. customThe solvent was evaporated under reduced pressure
4. customthe obtained residue was purified by silica gel column chromatography (hexane:ethyl acetate)

ORD record

ord-dc74eae75dd84549909d0c693a553502

Source dataset

uspto-grants-2011_09

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US08022072B2