Synthesis of pyrido[3’,2’:4,5]imidazo[1,2-a]pyridines by reductive cyclisation of pyridinium salts
作者:Roman S. Begunov、Galina A. Ryzvanovich、Ol’ga I. Nozdracheva
DOI:10.1070/mc2006v016n02abeh002236
日期:2006.1
The reduction of N-(3-nitro-2-pyridyl)pyridinium chlorides by SnCl2 resulted in the formation of pyrido[3',2':4,5]imidazo[1,2-a]pyridines or N-(3-amino-2-pyridyl)-3,5-dimethylpyridinium chloride depending on the structure of the substrate.