Hydrochloric Acid → 2-Fluorooctyl p-toluenesulfonate

Participants

Reaction Steps

To a solution of 6.7 g of 2-fluorooctanol in 25 ml of pyridine, a solution of 10.4 g of p-toluenesulfonyl chloride in 40 ml of pyridine was added dropwise in 20 minutes below 0° C. on an ice water bath, followed by stirring for 7 hours at room temperature. After the reaction, the reaction mixture was poured into 200 ml of ice water and acidified with 6N-hydrochloric acid aqueous solution, followed by extraction with methylene chloride. The organic layer was washed with water and dried with anhydrous magnesium sulfate, followed by distilling-off of the solvent to precipitate a crystal. The crystal was purified by silica gel column chromatography to obtain 12.7 g of 2-fluorooctyl-p-toluenesulfonate.

Provenance & Evidence