反应详情

In a reaction vessel, 2-[4-(2-hydroxy-ethyl)-phenyl]-2-methyl-propionic acid methylester (2.2 g) prepared in the Examples 1-3, triethylamine (1.2 g), methanesulfonylchloride (1.25 g) and dichloromethane (20 mL) were introduced, and the mixture was reacted at room temperature for 2 hours. Distilled water (50 mL) was added thereto, and the mixture was stirred to separate layers. The separated organic layer was dehydrated Na2SO4, and then condensed by filtration to obtain 2-[4-(2-methanesulfonyloxy-ethyl)-phenyl]-2-methyl-propionic acid methylester (3.2 g, yield 100%).

1. additionwere introduced
2. customthe mixture was reacted at room temperature for 2 hours
3. customto separate layers
4. customcondensed
5. filtrationby filtration