反应详情

A solution of 4-hydroxybenzaldehyde (100 mg, 0.819 mmol), cyclopentyl bromide (176 μl, 1.64 mmol), potassium carbonate (340 mg, 2.46 mmol), acetonitrile (4 mL) and potassium iodide (136 mg, 819 μmol) was stirred at 60° C. for 18 h. The reaction was diluted with water and extracted with ethyl acetate. The organic layer was washed with brine, dried over magnesium sulfate, filtered, and concentrated under reduced pressure to give crude product 4-(cyclopentyloxy)benzaldehyde. This was used as crude in the following Step. Analytical LCMS (M+H)+: m/z=191.1.

1. extractionextracted with ethyl acetate
2. washThe organic layer was washed with brine
3. dry with materialdried over magnesium sulfate
4. filtrationfiltered
5. concentrationconcentrated under reduced pressure