Process for producing 1-amino-4-hydroxy-anthraquinones

Details Process for producing 1-amino-4-hydroxy-anthraquinones Process for producing 1-amino-4-hydroxy-anthraquinones

1982-07-19

1984-11-27

Hollrah, Glennon H.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 9726

Patent

active

044850433

ABSTRACT:
1-Amino-4-hydroxy-2-phenoxy- or -2-alkoxyanthraquinones are obtained by reaction of a 1-amino-2-halo-4-hydroxyanthraquinone with an alcohol or phenol. The reaction is performed in an organic solvent in the presence of an alkaline-acting agent and a phase-transfer catalyst.

REFERENCES:
Dr. Otto-Albrecht Neumiller, Rompps Chemin-Lexikon, 1974, p. 2644.
Ullmann Encyklopadie der Technischen Chemie, vol. 18, pp. 380-381.
Tetrahedron, vol. 30 (1974), pp. 1379-1382, McKillop et al., "The Use of Phase-Transfer Catalysis for the Synthesis of Phenol Ethers".

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