Preparation of 1-amino-4-hydroxy-2-(6'-hydroxyhexoxy)-anthraquin

Preparation of 1-amino-4-hydroxyanthraquinone

Preparation of 1-amino-4-hydroxyanthraquinones

Preparation of 1-nitroanthraquinone-2-carboxylic acids

Preparation of alkoxy(iso)violanthrenediones

Preparation of anthraquinone imide compounds

Preparation of anthraquinones

Preparation of arylaminohydroxyanthraquinones

Preparation of chlorinated violanthrones or isoviolanthrones

Preparation of hydroxyanthraquinones

Preparation process for aminoanthraquinone derivatives

Process for preparation of 2-Methyl-1,4-naphthoquinone

Process for preparation of 2-substituted 1,4-naphthoquinone

Process for preparing aloe-emodin

Process for preparing pentacene derivatives

Process for preparing substituted aminoanthraquinones

Process for producing .alpha.-anthraquinonesulfonic acids and re

Process for producing 1-aminoanthraquinones

Process for producing 4,4'-Diamino-1,1'-dianthraquinonyl pigment

Process for production of diacetylrhein