Procedure for the preparation of anthraquinones. (Machine-translation by Google Translate, not legally binding)

摘要

Process for the preparation of anthraquinones containing a primary amine group, characterized by heating at temperatures above 100º in an organic solvent, an anthraquinone (which optionally contains, together with other substituents, at least one alkyl-, aralkyl- or cycloalkyl group -amino, secondary or tertiary, or at least one cyclic amine group), optionally in the presence of an acid-accepting agent and/or an oxidizing agent and, if desired, under elevated pressure. (Machine-translation by Google Translate, not legally binding)