Process for the preparation of aminohydroxyanthraquinones
Preparations of compounds of the formula SPC1 Wherein R denotes a hydrocarbon residue and A can be substituted further by conversion of o-phthalic acids of the formula SPC2 Or their anhydrides with amines of the formula SPC3 In boric aicd/sulphuric acid.
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(2008/06/13)
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