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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1644558Generated: November 3, 2026

Hydrochloric Acid → HCID 178482356, compound

https://huagongshe.com/reaction/1644558

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant6-chloro-N-methyl-4-(4-nitrophenyl)-3,4-dihydroisoquinolin-1-amineHCID 178482357—
CatalystIronHCID 23925—
SolventAcetic AcidHCID 176—
ProductHCID 178482356HCID 178482356—

Reaction Steps

135.2 mg of iron powder were added to a solution of 255 mg of 6-chloro-1-methylamino-4-(4-nitrophenyl)-3,4-dihydroisoquinoline in 4.5-5 ml of glacial acetic acid and then 1.8 ml of concentrated hydrochloric acid were added dropwise, and the mixture was boiled under reflux conditions for 2 hours. The solvent was removed by distillation, and the residue was mixed with water and made alkaline with 2N NaOH. This aqueous phase was extracted with ethyl acetate and purified by MPLC chromatography using an MPRC cartridge with a mixture of 10 parts by volume of ethyl acetate, 5 parts by volume of n-heptane, 5 parts by volume of dichloromethane, 5 parts by volume of methanol and 1 part by volume of concentrated aqueous ammonia solution. Amorphous product.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08124621B2
Source datasetuspto-grants-2012_02
ORD IDord-0d613b64bb67411bab97e9af69dc6a53
Source noteuspto-grants-2012_02