21714-58-9Relevant academic research and scientific papers
Access to 2-pyridinylamide and imidazopyridine from 2-fluoropyridine and amidine hydrochloride
Chen, Lu,Huang, Shuo,Ji, Xiaoliang,Li, Jiaming,Li, Jian,Li, Yibiao,Liu, Jiasheng,Peng, Shiyong,Zhang, Kun
supporting information, p. 9292 - 9299 (2020/12/03)
Under catalyst-free conditions, an efficient method to synthesize 2-pyridinylamides has been developed, and the protocol uses inexpensive and readily available 2-fluoropyridine and amidine derivatives as the starting materials. Simultaneously, the copper-catalysed approach to imidazopyridine derivatives has been established with high chemoselectivity and regiospecificity. The results suggest that the nitrogen-heterocycles containing iodide substituents can also be compatible for the reaction via the cascade Ullmann-type coupling, and the nucleophilic substitution reaction provides the target products in a one-pot manner.
