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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 258987Generated: October 25, 2026

9,10-Anthracenedione, 1-bromo-4-(methylamino)- → 1-Methylamino-4-(p-trifluoromethoxy-anilino)-anthraquinone

https://huagongshe.com/reaction/258987

Reaction equation

Participants

RoleNameHCIDCharge
Reactant9,10-Anthracenedione, 1-bromo-4-(methylamino)-HCID 31418—
ReactantPotassium AcetateHCID 517044—
Reactant4-(Trifluoromethoxy)anilineHCID 600848—
CatalystCupric acetateHCID 8895—
Product1-Methylamino-4-(p-trifluoromethoxy-anilino)-anthraquinoneHCID 21425074—

Reaction Conditions

Temperature132 °C

Reaction Steps

12.64 parts of 1-methylamino-4bromo-anthraquinone, 9.9 parts of para-trifluoromethoxyaniline, 6 parts of potassium acetate and 2 parts of copper acetate are introduced into 43 parts of 4-methyl-2-pertanol and the mixture is heated at 132° C. for 8 hours. The mixture is then cooled to 60° C., filtered, washed with water, then the precipitate is taken up in dilute caustic soda, filtered, washed and dried. 9.6 parts of 1-methylamino-4-(p-trifluoromethoxy-anilino)-anthraquinone are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04035397
Source datasetuspto-grants-1977_07
ORD IDord-ac64c7d594e14581bcbb8eb574d9b28c
Source noteuspto-grants-1977_07