Synthesis of Some New 2(1H)-Pyridones from 3-Amino-3-(dialkylamino)propenenitriles
- 1 January 1992
- journal article
- research article
- Published by Georg Thieme Verlag KG in Synthesis
- Vol. 1992 (04) , 371-373
- https://doi.org/10.1055/s-1992-26113
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.Keywords
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