
Journal of Organic Chemistry p. 3150 - 3156 (1983)
Update date:2022-08-05
Topics:
Ihara, Masataka
Noguchi, Kazuharu,
Ohsawa, Tatsushi
Fukumoto, Keiichiro
6-Methyl-2-pyrone-3,5-dicarboxylates 8 and 9 were prepared by the reaction of dimethyl (methoxymethylene)malonate and acetoacetates in the presence of sodium hydride followed by an acid treatment.Reaction of the pyrones 8 and 9 with 3,4-dihydro-1-methylis
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