Selective demethylation of Di- and tri-methoxyanthraquinones via aryloxydifluoroboron chelates. Synthesis of 4-hydroxy-1,5-dimethoxyanthraquinone and 1,4-dihydroxy-5-methoxyanthraquinone

Peter N. Preston, Thomas Winwick, John O. Morley

Research output: Contribution to journalArticle

Abstract

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.

Original languageEnglish
Pages (from-to)89-90
Number of pages2
JournalJournal of the Chemical Society, Chemical Communications
Issue number2
Publication statusPublished - 1983

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