Sodium Chloride → Ethyl [2-(benzyloxy)ethoxy]acetate

A mixture of ethylene glycol monobenzyl ether (36 ml, 252 mmol), 60% sodium hydride (11.0 g, 275 mmol) and N,N-dimethylformamide (300 ml) was stirred at room temperature for 1.5 hours. To the resulting suspension was added dropwise a solution of ethyl bromoacetate (34 ml, 302 mmol) in N,N-dimethylformamide (50 ml), followed by stirring at room temperature for another 3 hours. The reaction mixture was poured into a 10% aqueous sodium chloride solution and extracted with ethylacetate, and the extract solution.was washed with a 5% aqueous sodium chloride solution and dried over anhydrous magnesium sulfate. The solvent was distilled off under reduced pressure and the resulting residue was purified by a silica gel column chromatography (eluent: ethyl acetate:n-hexane=9:95) to obtain 18.5 g of ethyl (2-benzyloxyethoxy)acetate as a colorless oil.

1. stirringby stirring at room temperature for another 3 hours
2. extractionextracted with ethylacetate
3. washthe extract solution.was washed with a 5% aqueous sodium chloride solution
4. dry with materialdried over anhydrous magnesium sulfate
5. distillationThe solvent was distilled off under reduced pressure
6. customthe resulting residue was purified by a silica gel column chromatography (eluent: ethyl acetate:n-hexane=9:95)

ORD record

ord-a0275817f5854e6297f8831dc4d958f6

Source dataset

uspto-grants-2001_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06271251B1