Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 917888Generated: October 26, 2026

Phenol → 1-Amino-2-(3'-methyl-5'-hydroxypentanoxy)-4-hydroxyanthraquinone

https://huagongshe.com/reaction/917888

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhenolHCID 996—
ReactantPotassium CarbonateHCID 11430—
Reactant3-Methyl-1,5-pentanediolHCID 20524—
Reactant9,10-Anthracenedione, 1-amino-2-chloro-4-hydroxy-HCID 75590—
SolventN-methyl-2-pyrrolidoneHCID 13387—
Product1-Amino-2-(3'-methyl-5'-hydroxypentanoxy)-4-hydroxyanthraquinoneHCID 21524107—

Reaction Conditions

Temperature140 °C

Reaction Steps

A mixture of 25 parts of 3-methyl-1,5-pentanediol, 12 parts of N-methylpyrrolidone, 2.6 parts of phenol and 3.3 parts of potassium carbonate is mixed with 8 parts of 1-amino-4-hydroxy-2-chloroanthraquinone at 130°C and stirred for 3 hours at 130°C and 2 hours at 140°C under nitrogen. After working up, 6 parts of 1-amino-2-(5'-hydroxy-3'-methylpentoxy)-4-hydroxyanthraquinone melting at from 134° to 135°C are obtained.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03968131
Source datasetuspto-grants-1976_07
ORD IDord-ecd736e19f784e14b01163adefface39
Source noteuspto-grants-1976_07