تفاعل #43339

معادلة التفاعل

Triethylamine

methoxymethyl chloride

tetrahydrofuran

4-fluoro-3-hydroxybenzoic acid

→

title compound

المردود 94.0%

4-fluoro-3-(methoxymethoxy)benzyl alcohol

المردود 94.0%

المذيبات

Ethyl acetate

ظروف التفاعل

المعالجة

1. 1
   غسيلthen was washed with water and saturated brine
2. 2
   تجفيفdried over anhydrous magnesium sulfate
3. 3
   تركيزthe solvent therein was concentrated under reduced pressure
4. 4
   workup.DISSOLUTIONthe residue was dissolved in tetrahydrofuran (20 mL)
5. 5
   workup.ADDITIONLithiumaluminium hydride (360 mg) was added
6. 6
   workup.STIRRINGstirred at 0° C. for an hour
7. 7
   workup.ADDITIONethyl acetate was added
8. 8
   أخرىthe insoluble matter was removed
9. 9
   غسيلby washing with saturated brine
10. 10
    تجفيفdrying over anhydrous magnesium sulfate
11. 11
    تركيزConcentrating the solvent under reduced pressure

الإجراء التجريبي

Triethylamine (1.07 mL) and methoxymethyl chloride (2.24 mL) were added to tetrahydrofuran (10 mL) solution of 4-fluoro-3-hydroxybenzoic acid (1.0 g), and stirred at 0° C. for 2 hours. Ethyl acetate was added to the reaction liquid which then was washed with water and saturated brine, dried over anhydrous magnesium sulfate, the solvent therein was concentrated under reduced pressure and the residue was dissolved in tetrahydrofuran (20 mL). Lithiumaluminium hydride (360 mg) was added, stirred at 0° C. for an hour, ethyl acetate was added and the insoluble matter was removed, followed by washing with saturated brine and drying over anhydrous magnesium sulfate. Concentrating the solvent under reduced pressure, the title compound (1.14 g, 94%) was obtained.

المصدر