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

C - Chemistry, Metallurgy

09

B

260/236.25

C09B 1/503 (2006.01) C09B 1/54 (2006.01)

Patent

CA 1178954

Case 1-13490/+ Process for producing 1-amino-4-hydroxy-anthraquinones Abstract 1-Amino-4-hydroxy-2-phenoxy- or -2-alkoxyanthraquinones are obtained by reaction of a l-amino-2-halo-4-hydroxy- anthraquinone 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.

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