تفاعل #2348136

معادلة التفاعل

phytanol

phytanol

pyridine

p-toluenesulfonyl chloride

→

phytanyl tosylate

المردود 138.7%

المذيبات

methylene chloride

ظروف التفاعل

المعالجة

1. 1
   أخرىfrom exceeding 10° C
2. 2
   workup.ADDITIONAfter the completion of addition, agitation
3. 3
   أخرىthe resulting reaction solution
4. 4
   غسيلwas successively washed with 200 ml of water, 200 ml of 2N hydrochloric acid, and 200 ml of a saturated sodium bicarbonate water
5. 5
   تجفيفdried over anhydrous magnesium sulfate
6. 6
   ترشيحAfter the filtration
7. 7
   تركيزthe resultant was concentrated under reduced pressure

الإجراء التجريبي

Under a nitrogen atmosphere, 29.16 g (97.67 mmol) of phytanol and 9.27 g (117.2 mmol) of pyridine were dissolved in 220 ml of dry methylene chloride, and 20.48 g (107.4 mmol) of p-toluenesulfonyl chloride was added little by little under ice cooling, in order to prevent the liquid temperature from exceeding 10° C. After the completion of addition, agitation was continued for 12 hours until phytanol disappeared, 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 dried over anhydrous magnesium sulfate. After the filtration, the resultant was concentrated under reduced pressure to obtain 61.31 g of phytanyl tosylate.

المصدر