Pyridine → 4-((1R,2S)-1-cyano-2-hexylcyclopropyl)phenyl (S)-4-[4-(2-propoxypropanoyloxy)phenyl]benzoate

Participants

Reaction Steps

In 10 ml of dichloromethane were dissolved 83 mg of (S)-4-[4-(2-propoxypropanoyloxy)phenyl]benzoyl chloride and 65 mg of (1R,2S)-1-cyano-2-hexyl-1-(4-hydroxyphenyl)cyclopropane. To this solution was added 0.5 ml of pyridine. The resulting mixture was stirred for 3 hours under reflux. The reaction mixture was cooled, and then ether was added thereto. The ethanol phase was separated, washed with diluted hydrochloric acid, water, and then saturated sodium chloride aqueous solution, and dried over anhydrous sodium sulfate. The solvent was removed by evaporation and the residue was purified by silica gel column chromatography (solvent: hexane/ethyl acetate=5/1). Recrystallization from ethanol afforded, thereby obtaining 61 mg of the desired compound as colorless crystals.

Provenance & Evidence