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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1836285Generated: October 30, 2026

Ammonia → 3-Nitro-8-methyl-5,6,7,8-tetrahydroquinoline

https://huagongshe.com/reaction/1836285

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
Reactant2-MethylcyclohexanoneHCID 11419—
Reactant1-Methyl-3,5-dinitro-1H-pyridin-2-oneHCID 3621236—
Product3-Nitro-8-methyl-5,6,7,8-tetrahydroquinolineHCID 1429705675%

Reaction Steps

2-Methylcyclohexanone (170 mg, 1.52 mmol) was mixed with 1-methyl-3,5-dinitro-2-pyridone (296 mg, 1.49 mmol) in 1M methanolic ammonia (30 mL, 30 mmol) and heated at reflux for 3 h. The solvent was evaporated off and the residue was suspended in CHCl3 and flash chromatographed over silica gel (19 g) eluting with EtOAc/hexane (1:10) to afford a white solid (213 mg, 75% yield): mp 61-63° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06777426B2
Source datasetuspto-grants-2004_08
ORD IDord-0d3c0f1d57db4fe39c0df28fee209747
Source noteuspto-grants-2004_08