Hydrochloric Acid → HCID 178432214, compound

Participants

Reaction Conditions

Reaction Steps

4-Acetoxy-5-trifluoromethyl-6-(4-trifluoromethoxyphenoxy)-2,3-dimethyl-quinoline (1.5 g) prepared in Synthesis Example 2 was dissolved in 10 mL of ethanol. A 20% sodium hydroxide solution (10 mL) was added to the solution, and the mixture was stirred at 50° C. for 3 hr. This reaction mixture was added to 20 mL of water, and the mixture was neutralized with 1 N hydrochloric acid. The precipitated crystals were collected by filtration under the reduced pressure to give 1.34 g of 5-trifluoromethyl-6-(4-trifluoromethoxyphenoxy)-4-hydroxy-2,3-dimethyl-quinoline (yield 98.0%).

Provenance & Evidence