“…In contrast to the known behavior of alkylheteroaromatic carbonitriles condensing 3 with DMFDMA afforded 3‐cyano‐4‐(2‐(dimethylamino)vinyl)‐6‐methyl‐2‐pyridone 21 in low yield (Scheme ), identified from gas chromatography‐mass spectrometry (GC/MS), which showed m/z 203; rather methylation of 3 took place in good yield. Alkylation of pyridones with N,N‐dimethylformamide dimethylacetal (DMFDMA), has been reported recently [22]. The alkylation product can, thus, be assigned as structures 3‐cyano‐1,4,6‐trimethyl‐2‐pyridone 20 , or its isomeric form 2‐methoxy‐4,6‐dimethylnicotinonitrile 22 (Scheme ).…”