反应详情

Chloropropanesulfonyl chloride (0.576 mL, 4.73 mmol) was added to a solution of ethyl 2-(4-amino-3-fluorophenyl)propanoate (1 g, 4.735 mmol) and pyridine (0.382 mL, 4.735 mmol) in DCM (18 mL) at 0° C. The reaction mixture was stirred for 1 h, after it was partitioned between DCM (10 mL) and 1N hydrochloric acid (10 mL). The organic phase was separated and dried over magnesium sulfate, filtered and concentrated in vacuo to afford ethyl 2-(4-(3-chloropropylsulfonamido)-3-fluorophenyl)propanoate as an oil (1.5 g).

1. customafter it was partitioned between DCM (10 mL) and 1N hydrochloric acid (10 mL)
2. customThe organic phase was separated
3. dry with materialdried over magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated in vacuo