Preparation of 1-amino-2-chloro-4-hydroxyanthraquinone

Preparation of 1-amino-2-chloro-4-hydroxyanthraquinone

1-Amino-2-chloro-4-hydroxyanthraquinone (I) (I) in prepared by chlorinating 1-amino-4-hydroxyanthraquinone (II) (II) by a process in which the chlorination is carried out in 90-100% strength by weight sulfuric acid or in not more than 2% strength by weight oleum.

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Bibliographische Detailangaben
Hauptverfasser: EPPLE, GERHARD
Format: Patent
Sprache:eng
Schlagworte:
ACYCLIC OR CARBOCYCLIC COMPOUNDS
ADHESIVES
CHEMISTRY
DYES
LAKES
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
MORDANTS
NATURAL RESINS
ORGANIC CHEMISTRY
ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES
PAINTS
POLISHES
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Beschreibung
Zusammenfassung:1-Amino-2-chloro-4-hydroxyanthraquinone (I) (I) in prepared by chlorinating 1-amino-4-hydroxyanthraquinone (II) (II) by a process in which the chlorination is carried out in 90-100% strength by weight sulfuric acid or in not more than 2% strength by weight oleum.