تفاعل #2980

معادلة التفاعل

hydride

lithium aluminum hydride

methyl (7-methoxy-1-naphthyl)acetate

water

→

2-(7-METHOXY-1-NAPHTHYL)ETHANOL

المذيبات

ether

ether

ظروف التفاعل

المعالجة

1. 1
   workup.ADDITIONare added slowly
2. 2
   workup.WAITThe reaction medium is left
3. 3
   workup.STIRRINGstirring for 30 minutes
4. 4
   ترشيحThe reaction medium is filtered
5. 5
   استخلاصThe aqueous phase is extracted with 3 times 50 cm3 of ether
6. 6
   تجفيفthe ether phases are dried over magnesium sulfate
7. 7
   أخرىevaporated
8. 8
   أخرىThe white solid obtained
9. 9
   أخرىis recrystallized

الإجراء التجريبي

3.34 g of lithium aluminum hydride are placed in a 250-cm3 flask, and ether is added gently with stirring. Using a dropping funnel, 5 g of methyl (7-methoxy-1-naphthyl)acetate previously dissolved in 50 cm3 of ether are added slowly. The reaction medium is left stirring for 30 minutes. It is poured very slowly into a mixture of water and ice so as to hydrolyze the excess unreacted hydride. The reaction medium is filtered. The aqueous phase is extracted with 3 times 50 cm3 of ether, and the ether phases are dried over magnesium sulfate and evaporated. The white solid obtained is recrystallized.

المصدر