Nucleophilic displacement of N-aryl and heteroaryl groups. Part 5. Conversion of 2-aminopyridines into 2-pyridones
作者:Alan R. Katritzky、Radi Awartani
DOI:10.1039/p19830002623
日期:——
2-Ethoxycarbonyl-1-(2-pyridyl)pyridinium cations (3)(easily prepared from 2-aminopyridine and the appropriate pyrylium salt) are converted by dilute NaOH at 25 °C into 1-(substituted 2-pyridylcarbonyl)-2-pyridones (7). Compounds (7) are readily hydrolysed to 2-pyridones.
在25°C下通过稀NaOH将2-乙氧基羰基-1-(2-吡啶基)吡啶鎓阳离子(3)(由2-氨基吡啶和适当的吡啶鎓盐轻松制得)转化为1-(取代的2-吡啶基羰基)-2-吡啶酮(7)。化合物(7)容易水解为2-吡啶酮。