2，6－二氯－4－硝基苯胺的合成

Synthesis of 2,6-Dichloro-4-nitroaniline

以盐酸－过氧化氢为氯代试剂，由对硝基苯胺制备了２，６－二氯－４－硝基苯胺。结果表明，过氧化氢的比例、反应温度对收率有较大的影响。过氧化氢过量，反应温度在５０℃时，可缩短反应时间，提高收率。

Dichloro-4-nitroaniline was prepared by using hydrochloric acid-hydrogen peroxide as chlorinating agent.The experiment result shows that the yield is influenced by the ratio of hydrogen peroxide and reaction temperature. The yield was good under the conditions of an excess of hydrogen peroxide and temperature at 50℃.