Abstract
Photochemical reaction of N-substituted 1, 6-dihydro-3 (2H)-pyridinones (1) with vinyl acetate resulted in predominant formation of head-to-tail adducts with small amounts of head-to-head adducts. The head-to-tail adduct derivatives (22 and 30) were transformed into lactones (24 and 34), which were further derived to the 4-N, N-dimethyl-carbamoylmethyl-1, 6-dihydro-3 (2H)-pyridinones (2a and 2b, respectively).
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