HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2296249Generated: October 25, 2026
Ethylamine → 1-[(3-Dimethylaminopropyl)amino]-4-ethylamino-5,8-dihydroxyanthraquinone
https://huagongshe.com/reaction/2296249
Participants
| Role | Name | HCID | Charge |
|---|
| Reactant | Ethylamine | HCID 6341 | — |
| Reactant | N,N-Dimethyl-1,3-propanediamine | HCID 7993 | — |
| Reactant | Sodium Dithionite | HCID 24489 | — |
| Reactant | 9,10-Anthracenedione, 2,3-dihydro-1,4,5,8-tetrahydroxy- | HCID 66485 | — |
| Solvent | Methanol | HCID 887 | — |
| Product | 1-[(3-Dimethylaminopropyl)amino]-4-ethylamino-5,8-dihydroxyanthraquinone | HCID 20472066 | — |
Reaction Steps
A mixture of 2.74 g. of leuco-1,4,5,8-tetrahydroxyanthraquinone, 0.45 g. of ethylamine, a trace of sodium hydrosulfite and 60 ml. of aqueous methanol was stirred and warmed to 50° C. for one hour. To this was added 1.1 g. of dimethylaminopropylamine and the mixture was stirred and warmed at 50°-60° C. for 2 hours. Air was bubbled through this mixture while heating on a steambath for 6 hours. The mixture was cooled and the title product was collected.
Provenance & Evidence
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US04428882 |
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| Source dataset | uspto-grants-1984_01 |
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| ORD ID | ord-7a207cab7520465ea39dc06fd5666876 |
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| Source note | uspto-grants-1984_01 |
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