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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 442048Generated: October 30, 2026

1-Nitroanthraquinone → 1-dimethylaminoanthraquinone

https://huagongshe.com/reaction/442048

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-NitroanthraquinoneHCID 6704—
ReactantHexamethylphosphoramideHCID 12679—
SolventWaterHCID 962—
Product1-dimethylaminoanthraquinoneHCID 284020692.4%

Reaction Steps

25.3 parts of 1-nitroanthraquinone and 227 parts of hexamethylphosphoric triamide are heated in an agitator flask for 4 hours to 180° C and for 11/2 hours to 210° C. After it has been cooled, the reaction mixture is poured into 1000 parts of water. The precipitated product is collected by filtration, washed with water and dried, to yield 23.2 parts (=92.4% of theory) of 1-dimethylaminoanthraquinone.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04044030
Source datasetuspto-grants-1977_08
ORD IDord-d96da33a36b24121abc758dc5c619825
Source noteuspto-grants-1977_08