反应 #81697

反应方程式

C8F17I

methanol

potassium hydroxide

→

C8F17H

收率 93.8%

溶剂

water

反应条件

后处理

1. 1
   其他Into a 1 l four-necked flask equipped with a stirrer, a reflux condenser, a dropping funnel
2. 2
   温度The reactor was heated
3. 3
   其他to 60° C
4. 4
   workup.ADDITIONAfter completion of the dropwise addition
5. 5
   温度heating
6. 6
   温度refluxing
7. 7
   workup.WAITwere continued for 8 hours
8. 8
   workup.DISSOLUTIONto dissolve
9. 9
   其他precipitated potassium iodide
10. 10
    其他The crude reaction solution
11. 11
    其他was separated into two layers
12. 12
    洗涤the fluorocarbon layer (lower layer) was further washed with 300 g of water
13. 13
    其他to recover a fluorocarbon

实验过程

Into a 1 l four-necked flask equipped with a stirrer, a reflux condenser, a dropping funnel and a thermometer, 250 cc of methanol and 3 g of tetrabutylphosphonium bromide and 74.3 g (1.1 mols) of 85% potassium hydroxide were charged. The reactor was heated to bring the internal temperature to 60° C. Then, 273 g (0.5 mol) of C8F17I was dropwise added thereto over a period of one hour. After completion of the dropwise addition, heating and refluxing were continued for 8 hours. The conversion at that time was 99.6%. The reactor was cooled to room temperature. Then, 300 g of water was added to dissolve precipitated potassium iodide. The crude reaction solution was separated into two layers, and the fluorocarbon layer (lower layer) was further washed with 300 g of water to recover a fluorocarbon. Thus, 197 g of C8F17H having a purity of 99.0%, was obtained.

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