The title compounds 6 have been prepared in a one‐step procedure from the corresponding 4‐aryl substituted 5‐alkoxycarbonyl‐6‐methyl‐3,4‐dihydropyridones 4 in good yields. Quantum chemical calculations reveal a non‐planar molecule with a distorted dihydropyridone ring and two favoured conformations. The 13C nmr data and theoretical calculations support a strong push‐pull effect on the olefinic moiety.
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