Potassium Carbonate → HCID 14372421, compound

Participants

Reaction Conditions

Reaction Steps

A solution of 25.4 g (0.1 mol) of chloroformic acid-3-(2-propinyl-oxycarbonylamino)-phenylester in 100 ml acetic acid ethylester is added within a period of 20 minutes to a solution of 16.3 g (0.1 mol) of N-isobutyl-p-toluidine in 50 ml acetic acid ethylester. Simultaneously a solution of 13.8 g (0.1 mol) of potassium carbonate in 50 ml water is added dropwise while stirring and cooling to 15° C. temperature. Thereafter, the solution is further stirred at 15° C. for 30 minutes. The organic phase is then separated and washed at 0° C. with dilute sodium hydroxide, dilute hydrochloric acid and water. After drying on magnesium sulfate the mass is concentrated at a reduced pressure. It is then recrystallized from acetic acid ethylester/pentane.

Provenance & Evidence