以2,5-二氯苯胺(2)为原料,经管道化重氮化反应和管道化水解反应连续合成了2,5-二氯苯酚,总收率85.8%。最佳合成工艺为:2 0.37 mol,重氮化反应温度20℃,停留时间30 s;水解反应温度160℃,停留时间30 min。
2,5-Dichlorophenol in total yield of 85. 8% was synthesized from 2,5-dichloroaniline( 2) by firstly diazotization and then hydrolysis in pipeline reactors. The optimum reaction conditions were as followes: 2 was 0. 37 mol,diazotization for 30 s at 20 ℃,hydrolysis for 30 min at 160 ℃.