反应详情

A mixture of 5-[(E)-2-phenylvinyl]-3-[4-(trifluoromethyl)phenyl]-1H-pyrazole (330 mg, 1.05 mmol), sodium hydride (60% in oil, 40 mg, 1.00 mmol) and N,N-dimethylformamide (5 mL) was stirred at room temperature for 1 hr. Methyl 3-(4-{[4-(chloromethyl)benzyl]oxy}phenyl)propanoate (318 mg, 1.00 mmol) was added to the reaction mixture at room temperature, and the mixture was further stirred at room temperature for 1 hr. The reaction mixture was poured into 1 N hydrochloric acid, and the mixture was extracted with ethyl acetate. The ethyl acetate layer was dried using a Presep Dehydration tube (Manufactured by Wako Pure Chemical Industries, Ltd.), and concentrated under reduced pressure. The residue was purified by silica gel column chromatography (hexane:ethyl acetate=19:1-1:1) to give the title compound (343 mg, yield 57%) as a yellow oil. MS: m/z 597 (MH+).

1. stirringthe mixture was further stirred at room temperature for 1 hr
2. extractionthe mixture was extracted with ethyl acetate
3. dry with materialThe ethyl acetate layer was dried
4. concentrationconcentrated under reduced pressure
5. customThe residue was purified by silica gel column chromatography (hexane:ethyl acetate=19:1-1:1)