Preparation method of 2-cyano-4-nitroaniline
2-cyano-4-nitroaniline is an important active component in the synthesis of disperse dyes. Usually, o-chlorobenzonitrile is synthesized from o-Chlorotoluene by ammoxidation, then 2-chloro-5-nitrobenzonitrile is obtained by nitration, and then 2-cyano-4-nitroaniline is obtained …