1155800-50-2Relevant academic research and scientific papers
An efficient synthetic process for scale-up production of 4,5-diamino-2- (trifluoromethyl)benzonitrile and 5-bromo-3-(trifluoromethyl)benzene-1,2-diamine
Li, Xun,Ng, Raymond A.,Zhang, Yongzheng,Russell, Ronald K.,Sui, Zhihua
experimental part, p. 652 - 655 (2010/04/22)
Starting from 4-amino-2-(trifluoromethyl)benzonitrile (6), an efficient and nonchromatographic process was developed for multihundred gram production of 4,5-diamino-2-(trifluoromethyl)- benzonitrile (1) in 73% yield and 98 HPLC area% purity over four synthetic steps. The same synthetic strategy was applied to 4-bromo-2-(trifluoromethyl)aniline (7) that afforded 5-bromo-3- (trifluoromethyl)benzene-1,2-diamine (5) in 81% overall yield and 99% HPLC area% purity.
