Selective Demethylation of Di- and Tri-methoxyanthraquinones via Aryloxydifluoroboron Chelates. Synthesis of 4-Hydroxy-1,5-dimethoxyanthraquinone and 1,4-Dihydroxy-5-methoxyanthraquinone

DOI: 10.1039/c39830000089

Source and publish data:

Journal of the Chemical Society. Chemical communications p. 89 - 90 (1983)

Update date:2022-09-26

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Authors:

Preston, Peter N.

Winwick, Thomas

Morley, John O.

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Article abstract of DOI:10.1039/c39830000089

Methoxyanthraquinone derivatives react with boron trifluoride-diethyl ether to give mono- and bis-difluoroboron chelates which, in methanol, are converted into hydroxyanthraquinones; an extension of this method is described for the synthesis of 2-hydroxy-2',4,4'-trimethoxybenzophenone.

Full text of DOI:10.1039/c39830000089

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