Zhu-Lian Xue
2001
Citations
0
Influential Citations
0
Citations
Journal
Journal of Qufu Normal University
Abstract
A method is given for synthesis of 1,3-difluorobenzene from 1,3-dichloro -benzene by nitration, fluorination, chlorination and dechlorination etc. The suitable technological conditions were investigated for each step. In order to increase the yield of fluorination which was the key step,phase transfer catalyst was used. The result showed that the yield of fluorination was about 68%. There is more activation of dechlorination. for the Pd/C catalysis manufactured by ion exchange method. As compared with other methods for preparing 1,3-difluorobenzene,there are many advantages with respect to low costs, mild conditions and easy operations for this synthesis route.