反应详情

71 g of 3-(2,2,2-trichloro-1-acetoxy-ethoxy)-toluene and 150 ml of acetic acid are stirred in a reaction vessel at 35°-45° C. 37 g of zink dust are added subsequently in the course of 2 to 3 minutes and the resultant reaction mixture is stirred for 1 hour at room temperature. The suspension is then mixed with hexane, filtered and washed. Acetic acid is removed by shaking out the organic phase with 2 N NaOH. After evaporation, 43 g 3-(2,2-dichlorovinyloxy)-toluene are obtained as a colourless oil, which can be used for processing without purification.

1. addition37 g of zink dust are added subsequently in the course of 2 to 3 minutes
2. customthe resultant reaction mixture
3. filtrationfiltered
4. washwashed
5. customAcetic acid is removed
6. stirringby shaking out the organic phase with 2 N NaOH
7. customAfter evaporation, 43 g 3-(2,2-dichlorovinyloxy)-toluene
8. customare obtained as a colourless oil, which
9. customcan be used for processing without purification