Synthesis of some new (2(1H)-pyridones from 3-amino-3-(dialkylamino)propenenitriles
CONGIU, CENZO;ONNIS, VALENTINA
1992-01-01
Abstract
3-Amino-3-(dialkylamino)propenenitriles were reacted with acetylenecarboxylates to give 2(1H)-pyridone derivatives. The reaction with ethyl propynate afforded dienamino ester intermediates which cyclized in sodium ethoxide/ethanol to 5-cyano-2(1H)-pyridone. The reaction with diethyl acetylenedicarboxylate gave directly the 2(1H)-pyridone derivatives.Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.