An efficient and ecofriendly synthesis of highly functionalized pyridones <i>via</i> a one-pot three-component reaction
作者:Hajar Hosseini、Mohammad Bayat
DOI:10.1039/c8ra05690k
日期:——
A simple and convenient protocol has been developed for the synthesis of N-amino-3-cyano-2-pyridone derivatives by a one-pot reaction of cyanoacetohydrazide, activated nitrile substrates (malononitrile, ethyl cyanoacetate, cyanoacetamide) and aromatic aldehydes in the presence of piperidine in water or a mixture of water and ethanol. The sequence of cascade reactions includes Knoevenagel condensation