Hydrochloric Acid → HCID 22674170, compound

Participants

Reaction Steps

To a solution of 7-amino-4-trifluoromethylcoumarin (200 mg, 0.87 mmol) and 4-dimethylaminopyridine (1 mg) in pyridine (3 ml) was added 4-chlorobenzenesulfonyl chloride (203 mg, 0.96 mmol), followed by stirring at 70 degrees for 50 minutes. To the reaction mixture was added 2 N hydrochloric acid, followed by extracting with ethyl acetate. The organic layer was washed with water and brine, dried over magnesium sulfate and evaporated. The resulting residue was crystallized from ethyl acetate-diisopropyl ether, to give 253 mg of the title compound as a pale yellow solid.

Provenance & Evidence