反应详情

A solution of 3-trifluoromethylbenzenesulfonic acid chloride (2.70 g, 11 mmol) in 1,4-dioxane (10 ml) was added slowly, in the course of 1 h, to a solution of 2-(piperidin-2-yl)acetic acid (1.43 g, 10 mmol) in 1,4-dioxane (5 ml) and 1 N sodium hydroxide solution (22 ml). The mixture was then stirred for 4.5 h at room temperature, then acidified with 1 N hydrochloric acid and subsequently extracted with DCM (3×60 ml). The combined organic phases were dried over sodium sulfate and concentrated in vacuo.

1. extractionsubsequently extracted with DCM (3×60 ml)
2. dry with materialThe combined organic phases were dried over sodium sulfate
3. concentrationconcentrated in vacuo