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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1479381Generated: November 1, 2026

Hydrochloric Acid → 3-(6,8-Dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)aniline

https://huagongshe.com/reaction/1479381

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantEthanolHCID 702—
Reactant6,8-Dichloro-2-methyl-4-(3-nitrophenyl)-1,2,3,4-tetrahydroisoquinolineHCID 67459281—
CatalystIronHCID 23925—
SolventWaterHCID 962—
Product3-(6,8-Dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)anilineHCID 9836194—

Reaction Conditions

Temperature80 °C

Reaction Steps

Into a 100-mL 3-necked round-bottom flask purged and maintained with an inert atmosphere of nitrogen, was placed 6,8-dichloro-2-methyl-4-(3-nitrophenyl)-1,2,3,4-tetrahydroisoquinoline (200 mg, 0.59 mmol, 1.00 equiv), Fe (360 mg, 6.43 mmol, 8.60 equiv), hydrogen chloride (0.02 mL), ethanol (0.6 mL), water (0.2 mL). The resulting solution was stirred for 0.5 h at 80° C. in an oil bath. The solids were filtered out. The resulting mixture was concentrated under vacuum. This resulted in 0.2 g (crude) of 3-(6,8-dichloro-2-methyl-1,2,3,4-tetrahydroisoquinolin-4-yl)benzenamine as yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09408840B2
Source datasetuspto-grants-2016_08
ORD IDord-6b25c3b9a96c4aeb8cac67837e49accb
Source noteuspto-grants-2016_08