反应详情

温度

-15 °C

Sodium thiomethoxide (3.35 g, 47.8 mmol) was dissolved in dry DMF (35 ml) under a blanket of nitrogen. The solution was cooled to −15° C. and 1-(4-fluoro-2-methoxyphenyl)ethanone (6.7 g, 39.8 mmol) was added in portions. After 10 min at −15° C. the reaction mixture was brought to 0° C. for 1.5 h. EtOAc was added and the organic phase was washed three times with aqueous HCl (10%), dried (Na2SO4) and evaporated under reduced pressure to dryness. Purification by flash column chromatography (isooctane/EtOAc 4:1) gave the pure title compound (6.3 g, 81%). MS m/z (rel. intensity, 70 eV) 196 (M+, 37), 182 (11), 181 (bp), 166 (7), 138 (10).

1. washthe organic phase was washed three times with aqueous HCl (10%)
2. dry with materialdried (Na2SO4)
3. customevaporated under reduced pressure to dryness
4. customPurification by flash column chromatography (isooctane/EtOAc 4:1)