Sodium Chloride → Anthraquinone

Participants

Reaction Steps

1-Amino-2-carboxy-4-(3'-amino-4'-sulfophenylthio)anthraquinone (9.4 parts) and cyanuric chloride (3.7 parts) were subjected a to condensation reaction in an aqueous medium in a usual manner, followed by a condensation reaction with 1-aminobenzene-3-β-sulfatoethylsulfone (5.6 parts) at 20° to 40° C. under a weak acid condition. Thereafter, salting out of the reaction mixture with sodium chloride gave an anthraquinone compound of the following formula (free acid form). ##STR270##

Provenance & Evidence