反应详情

A solution of 2.26 g of p-toluene-sulfonic acid chloride in 5 ml of pyridine was added dropwise to a solution of 2.04 g of 6-pentyloxyheptanol in 8 ml of pyridine for 7 min. below 5° C. on an iced water bath. After stirring for 5 hours at room temperature, the reaction mixture was injected into 150 ml of cold water and, after being acidified to about pH 3 with 6N-hydrochloric acid, was extracted with ethyl acetate. The organic layer was -washed with water and dried with anhydrous magnesium sulfate, followed by distilling-off of the solvent to obtain 2.98 g of 6-pentyloxyheptyl-p-toluenesulfonate.

1. extractionwas extracted with ethyl acetate
2. dry with materialdried with anhydrous magnesium sulfate