Imines are often used as directing/chelating groups in C(sp3)–H activations of due to their ease of installation and removal, but have been rarely explored in the context of aryl C(sp2)–H activations of aryl amines given the strained intermediate that would follow. Here, the authors report a methodology for C(sp2)–H functionalization of aryl amines via palladium catalysis, assisted by vinylacetic acid, which putatively reduces the necessity of a four-membered strained intermediate.
- Xiangwen Tan
- Yaru Jing
- Huanfeng Jiang