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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1470116Generated: October 25, 2026

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

https://huagongshe.com/reaction/1470116

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 numberUS09006281B2
Source datasetuspto-grants-2015_04
ORD IDord-93b9268ddf21449c90bc22cdf0449fbb
Source noteuspto-grants-2015_04