Hydrochloric Acid → HCID 53723640, compound

Participants

Reaction Steps

A solution of 20 g of 4-[N'-methyl-N'-(3,5-bistrifluoromethyl-benzoyl)-amino]-5-(4-chlorophenyl)-pent-2-enoic acid ethyl ester and 15 g of lithium hydroxide monohydrate in 100 ml of THF/methanol/water 3:3:1 is stirred at room temperature for 4 hours, and then 200 ml of water and 1N hydrochloric acid are added (pH value approx. 2). The mixture is extracted twice with ethyl acetate. The combined organic phases are washed with water and saturated NaCl solution, dried (magnesium sulfate) and concentrated by evaporation. The title compound is obtained in the form of a colourless oil which can be used further without being further purified.

Provenance & Evidence