反応 #2329034

反応方程式

LAH

methyl 4-dodecyloxybenzoate

CH2Cl2

→

benzyl alcohol

収率 88.0%

4-Dodecyloxybenzyl Alcohol

収率 88.0%

溶媒

THF

THF

反応条件

後処理

1. 1
   workup.ADDITIONUpon addition
2. 2
   その他Reaction
3. 3
   温度was cooled to 0° C.
4. 4
   その他quenched by successive addition of H2O (13 mL), 15% NaOH (13 mL), and H2O (39 mL)
5. 5
   workup.STIRRINGstirring
6. 6
   その他Reaction mixture
7. 7
   ろ過was then filtered
8. 8
   洗浄the lithium salts rinsed generously with CH2Cl2
9. 9
   乾燥The filtrate was dried over MgSO4
10. 10
    濃縮concentrated

実験手順

To a 0° C. slurry of LAH (13.0 g, 343 mmol) in dry THF (400 mL) was added slowly methyl 4-dodecyloxybenzoate (100 g, 312 mmol) in dry THF (350 mL) over 1.5 hours. Upon addition, the mixture was stirred at room temperature for one hour, after which TLC (CH2Cl2) showed completion. Reaction was cooled to 0° C. and quenched by successive addition of H2O (13 mL), 15% NaOH (13 mL), and H2O (39 mL), and stirring continued until H2 evolution ceased. Reaction mixture was then filtered and the lithium salts rinsed generously with CH2Cl2. The filtrate was dried over MgSO4 and concentrated to give the title benzyl alcohol (80 g, 88%), which was taken to the next step without further purification.

出典