Synthetic Communications p. 1755 - 1767 (1998)
Update date:2022-09-26
Topics:
Stoyanov, Edmont V.
Ivanov, Ivo C.
Formylation of 4-hydroxy-6-methyl-2(1H)-pyridones and subsequent cyclization with a Wittig reagent or with CH-acidic esters gave a series of title compounds. The same starting pyridones reacted with methyl 3-amino-2- butenoate directly to the corresponding 4,7-dimethylpyrano[3,2-c]pyridines.
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