反应详情

Methanesulfonyl chloride (0.28 mL) was added dropwise to a stirred solution of 2-(3-nitrophenyl)ethanol (0.5 g; 1 eq) in dichloromethane (3 mL) and triethylamine (0.5 mL; 1.2 eq) at 0° C. under an inert atmosphere. The solution was allowed to reach r.t. and stirred for 5 hours. The reaction mixture was diluted with water (3 mL) and extracted into dichloromethane (3×3 mL). The organic layers were combined, dried over Na2SO4 and concentrated under reduced pressure. The crude was purified by flash chromatography, eluting with a gradient from dichloromethane to dichloromethane/MeOH (98/2) affording the title compound in 84% yield (0.62 g).

1. customto reach r.t.
2. extractionextracted into dichloromethane (3×3 mL)
3. dry with materialdried over Na2SO4
4. concentrationconcentrated under reduced pressure
5. customThe crude was purified by flash chromatography
6. washeluting with a gradient from dichloromethane to dichloromethane/MeOH (98/2)