Reaction ofa-KetoketeneS,N-Acetals with Cyanoacetamide: A New General Method for Substituted and Fused 4-(N-Alkylamino-,N-Arylamino-, orN-Morpholino)-3-cyano-2(1H)-pyridones
Reaction of<i>a</i>-Ketoketene<i>S,N</i>-Acetals with Cyanoacetamide: A New General Method for Substituted and Fused 4-(<i>N</i>-Alkylamino-,<i>N</i>-Arylamino-, or<i>N</i>-Morpholino)-3-cyano-2(1<i>H</i>)-pyridones