REACTIONS OF 7-AMINOCOUMARINS LEADING TO ALKYLIDENEBENZOPYRANS

DOI: 10.1007/BF00475593

Source and publish data:

Chemistry of Heterocyclic Compounds p. 611 - 616 (1988)

Update date:2022-08-02

Topics:

Authors:

Kirpichenok, M.A.

Gorozhankin, S.K.

Grandberg, I.I.

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Article abstract of DOI:10.1007/BF00475593

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.

Full text of DOI:10.1007/BF00475593

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