Preparation of hydroxyanthraquinones

Details Preparation of hydroxyanthraquinones Preparation of hydroxyanthraquinones

C - Chemistry, Metallurgy

07

C

260/236.24

C07C 46/00 (2006.01) B01J 19/20 (2006.01) C07C 50/26 (2006.01) C07C 50/34 (2006.01) C07C 50/38 (2006.01)

Patent

CA 2026904

O.Z. 0050/41190 Abstract of the Disclosure: 1-Hydroxyanthraquinones are prepared by reacting phthalic anhydride or derivatives thereof with phenol derivatives in the presence of a Lewis acid as catalyst and in the presence or absence of a diluent in a self-cleaning apparatus having a mixing effect.

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