电化学法还原对硝基氯代苯

The Electrochemical Reduction of 4-Nitrochlorobenzene

在乙醇－盐酸溶液中以Ｐｂ为阴极，电解还原对硝基氯代苯以合成对抗苯胺。阴极液：７０ｍＬ的乙醇－盐酸溶液加１．０ｇ对硝基氯代苯，温度：７０±１℃，电流密度：４．６Ａ／ｄｍ￣２，电量：理论电量的１２０％时，对氯苯胺的最大产率达９６．２％。

Electrolytic reduction of 4-nitrochlorobenzene(Ⅰ)to 4-chloroaniline(Ⅱ)at a lead cathodewas conducted in ethylalcohol-HCI solution. Amaximum yield of 96.2 per cent of(Ⅱ)was obtained.Optimum conditions were cathode solution 70 mL ethylacohol-HCI + 1.0g(Ⅰ),temperature 70±1 ℃,cathodic current density 4.6A/dm￣2 and current passed 120 per cent of theory。