催化加氢制备2,5-二氯苯胺

Synthesis of 2,5-Dichloroaniline by Catalytic Hydrogenation

本文提出了以2,5-二氯硝基苯为原料,以Raney Ni为催化剂进行加氢还原制备2,5-二氯苯胺,并 采用双氰胺为脱氯抑制剂,产品收率达91.2％。

2,5-Dichloroaniline was prepared by hydrogenation of 2,5-Dichloronitrobenzene in the presence of Raney Ni, dicyandiamide was used as a dechloro-inhibitor, yield 91.2%.