Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

Full Title

Dyes with an anthracene nucleus condensed with one or more carbocyclic rings > Dibenzanthrones; Isodibenzanthrones > Preparation from starting materials already containing the dibenzanthrone or isodibenzanthrone nucleus

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• C09B 3/32 by halogenation
• C09B 3/34 by oxidation
• C09B 3/36 by etherification of hydroxy compounds
• C09B 3/38 by introduction of hydrocarbon or acyl residues into amino groups