反应详情

To a solution of 4-(5-trifluoromethyl-pyridin-2-yl)-benzaldehyde (1.0 g, 3.98 mmol) in andhydrous tetrahydrifuran (THF) (25 mL) that had been cooled to 0° C. in an ice bath is added n-butyl magnesium bromide (8.0 mL, 16.0 mmol) dropwise with stirring under nitrogen. The mixture is allowed to warm slowly to room temperature. The reaction is monitored by HPLC, and upon complete consumption of the aldehyde, quenched with 1N HCl. The mixture is diluted with ethyl ether and water, then extracted. The organic layer is washed with water and brine, dried over anhydrous sodium sulfate and concentrated. The title compound is obtained after column chromatography (1.10 g or 3.20 mmol) at 80% yield.

1. customupon complete consumption of the aldehyde
2. customquenched with 1N HCl
3. additionThe mixture is diluted with ethyl ether and water
4. extractionextracted
5. washThe organic layer is washed with water and brine
6. dry with materialdried over anhydrous sodium sulfate
7. concentrationconcentrated