M. Kirpichenok, S. K. Gorozhankin, I. I. Grandberg
Jun 1, 1988
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Influential Citations
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Journal
Chemistry of Heterocyclic Compounds
Abstract
The reaction of 7-aminocoumarins with triethyloxonium tetrafluoroborate leads to benzopyrylium salts that react with sodium derivatives of compounds that contain an active methylene group to give substituted 2-methylene-2H-1-benzopyrans. The structures and physicochemical properties of the synthesized compounds are discussed.