The author of 《Chlorination of aniline by Pd(OAc)2/N-chloro-N-fluorobenzene-sulfonylamide》 were Zhu, Ye; Huang, Jinwen; Yang, Xianjin. And the article was published in Youji Huaxue in 2019. HPLC of Formula: 247170-19-0 The author mentioned the following in the article:
A mild method for palladium-catalyzed halogenation of acetanilide with N-chloro-N-fluorobenzenesulfonylamide (CFBSA) as a chlorinating reagent, oxidant, and novel promoting reagent was achieved. The decomposition of byproduct N-fluorobenzenesulfonylamine in the presence of Pd(OAc)2 could accelerate the process of chlorination. Preliminary mechanism investigation showed that Pd catalyzed aniline directed C-H activation lead to the ortho chlorination selectivity. A series of ortho-chlorinated anilides were obtained in 28%~82% yields.N-(2-Chloro-4-(trifluoromethyl)phenyl)acetamide(cas: 247170-19-0HPLC of Formula: 247170-19-0) was used in this study.
N-(2-Chloro-4-(trifluoromethyl)phenyl)acetamide(cas: 247170-19-0) belongs to anime. Nitrous acid converts secondary amines (aliphatic or aromatic) to N-nitroso compounds (nitrosamines): R2NH + HNO2 → R2N―NO. Some nitrosamines are potent cancer-inducing substances, and their possible formation is a serious consideration when nitrites, which are salts of nitrous acid, are present in foods or pharmaceutical preparations. Tertiary amines give rise to nitrosamines more slowly; an alkyl group is eliminated as an aldehyde or ketone, along with nitrous oxide, N2O.HPLC of Formula: 247170-19-0
Referemce:
Amide – Wikipedia,
Amide – an overview | ScienceDirect Topics