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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1977598Generated: November 1, 2026

1,3-Cyclohexanedione → HCID 21994440, compound

https://huagongshe.com/reaction/1977598

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,3-CyclohexanedioneHCID 10434—
Reactant5-Amino-2-methoxyphenolHCID 74314—
Catalystp-Toluenesulfonic acidHCID 6101—
SolventBenzeneHCID 241—
ProductHCID 21994440HCID 21994440100.2%

Reaction Steps

A solution of 1.00 g (7.19 mmole) of 3-hydroxy-4-methoxyaniline, 0.83 g (7.19 mmole) of 1,3-cyclohexanedione, and 50 mg of p-toluenesulfonic acid in 20 ml of benzene were heated reflux for 4.5 hours. The reaction solution was allowed to stand for one night at room temperature and the precipitated brown solid was collected by suction filtration. The crystal was washed with benzene, then was dried in vacuo to obtain 3-(3-hydroxy-4-methoxyanilino)-2-cyclohexen-1-one 1.68 g (yield 100%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06235736B1
Source datasetuspto-grants-2001_05
ORD IDord-d6ec3dea548e4a4a81444f4b1202ce41
Source noteuspto-grants-2001_05