反应 #2348140

反应方程式

5,9,13,17-tetramethyl-1-octadecanol

pyridine

p-toluenesulfonyl chloride

→

(5,9,13,17-tetramethyloctadecyl)tosylate

收率 97.1%

溶剂

methylene chloride

methylene chloride

反应条件

后处理

1. 1
   workup.ADDITIONAfter the dropwise addition
2. 2
   其他the resulting reaction solution
3. 3
   洗涤was successively washed with 200 ml of water, 200 ml of 2N hydrochloric acid, and 200 ml of a saturated sodium bicarbonate water, and it
4. 4
   干燥was dried over anhydrous magnesium sulfate
5. 5
   过滤After the filtration
6. 6
   浓缩the resultant was concentrated under reduced pressure

实验过程

Under a nitrogen atmosphere, a solution of 30 g (0.09 mol) of 5,9,13,17-tetramethyl-1-octadecanol and 8.72 g (0.11 mol) of pyridine in 200 ml of dry methylene chloride was added dropwise to a solution of 19.3 g (0.10 mol) of p-toluenesulfonyl chloride in 100 ml of dry methylene chloride under ice cooling. After the dropwise addition, the mixture was agitated at room temperature overnight, the resulting reaction solution was successively washed with 200 ml of water, 200 ml of 2N hydrochloric acid, and 200 ml of a saturated sodium bicarbonate water, and it was dried over anhydrous magnesium sulfate. After the filtration, the resultant was concentrated under reduced pressure to obtain 42 g of (5,9,13,17-tetramethyloctadecyl)tosylate.

来源