Triethylamine → benzyl N-(2-hydroxyethyl)carbamate

Participants

Reaction Steps

To a solution of aminoethanol (2.0 g, 32.7 mmol) in methylene chloride (60 ml) were added chloroformic acid benzyl ester (5.6 ml, 41.3 mmol) and triethylamine (5.5 ml, 39.5 mmol) in an ice bath. The mixture was stirred at room temperature for 1 hour. After checking the completion of the reaction, the reaction mixture was partitioned between ethyl acetate and saturated aqueous sodium chloride solution. The organic layer was dried over anhydrous sodium sulfate, filtered and concentrated under reduced pressure. The residue was purified by chromatography on a silica gel column using toluene:acetonitrile (3:2) as the eluant to afford (2-hydroxyethyl)carbamic acid benzyl ester (5.37 g, yield 840%) as a white solid.

Provenance & Evidence