Process for producing 1-amino-4-hydroxy-anthraquinones

摘要

1-Amino-4-hydroxy-2-phenoxy- or -2-alkoxyanthraquinones are obtained by reaction of a 1-amino-2-halo-4-hydroxyanthraquinone with an alcohol or phenol. The reaction is performed in an organic solvent in the presence of an alkaline-acting agent and a phase-transfer catalyst.