反应 #2314277

反应方程式

1,1-dichloromethl methy ether

n-dodecylbenzene

→

p-n-Dodecylbenzaldehyde

收率 40.0%

溶剂

dichloromethane

反应条件

后处理

1. 1
   其他The reaction system kept below 10° C. in an ice bath
2. 2
   workup.STIRRINGfurther stirred at a room temperature for 45 minutes
3. 3
   其他The resultant reaction mixture
4. 4
   萃取It was extracted four times with 200 mL of dichloromethane
5. 5
   其他dried overnight on sodium sulfate
6. 6
   其他The solvent was removed by the use of an evaporator
7. 7
   其他purified by column chromatography (silica gel, benzene:hexene =1:1)
8. 8
   其他Consequently, 11.22 g (40.2 mmol) of a light yellow slightly viscous liquid was obtained

实验过程

To 70 mL of dehydrated dichloromethane, 24.68 g (100 mmol) of n-dodecylbenzene was added and 36.82 g (189 mmol) of titanium tetrachloride was gradually added in drops. The reaction system kept below 10° C. in an ice bath and 13.16 9 (114 mmol) of 1,1-dichloromethl methy ether added in drops thereto were stirred together below 10° C. for 30 minutes and further stirred at a room temperature for 45 minutes. The resultant reaction mixture was added to 500 mL of ice water. It was extracted four times with 200 mL of dichloromethane and dried overnight on sodium sulfate. The solvent was removed by the use of an evaporator and purified by column chromatography (silica gel, benzene:hexene =1:1). Consequently, 11.22 g (40.2 mmol) of a light yellow slightly viscous liquid was obtained. The yield was 40%.

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