Practical Amination of Nitropyridones by Silylation
作者:Robert A. Singer、Michaël Doré
DOI:10.1021/op800201u
日期:2008.11.21
hexamethyldisilazane has been developed, avoiding the use of hazardous reagents such as POCl3. The activation of the pyridone by a nitro group is necessary for efficient coupling, leading to aminonitropyridines (3) in good yields. Regioisomers other than 3-nitro-4-pyridone (1) were found to be substantially less reactive but would undergo coupling with primary amines.