tert-Butanol → HCID 69212984, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 3 g (9.1 mmol) of 4-[2-[[(phenylmethoxy)carbonyl]amino]-ethoxy]benzeneacetic acid in 60 ml of chloroform is cooled to −30° C. and 1.18 g (10.9 mmol) of ethyl chloroformate and 1.52 ml (10.9 mmol) of triethylamine are added. The mixture is stirred for 1 hour at −30° C. and 1.63 g (22 mmol) of t-butanol and 1.52 ml (10.9 mmol) of triethylamine are then added. The mixture is stirred for 16 hours at room temperature and then concentrated under reduced pressure. The evaporation residue is taken up in 100 ml of ethyl acetate and the organic phase obtained is washed with water and then dried over magnesium sulfate and concentrated under reduced pressure. The crude product is purified by chromatography on silica gel using a dichloromethane/methylcyclohexane mixture (1/1; v/v) as the eluent to give 930 mg of the expected compound (yield=26%).

Provenance & Evidence