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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 54676Generated: October 30, 2026

Hydrochloric Acid → HCID 19959717, compound

https://huagongshe.com/reaction/54676

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-Benzyl-4-(3,4-dihydroxyphenyl)-8-formamido-7-hydroxy-1,2,3,4-tetrahydroisoquinolineHCID 19959715—
SolventEthanolHCID 702—
ProductHCID 19959717HCID 1995971782.4%

Reaction Steps

450 mg of 2-benzyl-4-(3,4-dihydroxyphenyl)-8-formamido-7-hydroxy-1,2,3,4-tetrahydroisoquinoline was dissolved in 9 ml of ethanol, and after adding thereto 0.86 ml of 2M hydrochloric acid 0.05 g of 10% paradium-carbon, hydrogenation reaction was performed at room temperature. The hydrogenation reaction was over, the reaction mixture was filtered, and concentrated. The residue was changed to precipitates with treatment of isopropyl alcohol and acetonitrile, and the precipitates was collected by filtration, affording 320 mg of 4-(3,4-dihydroxyphenyl)-8-formamido-7-hydroxy-1,2,3,4-tetrahydroisoquinoline hydrochloride.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05623074
Source datasetuspto-grants-1997_04
ORD IDord-c021811bd7fd4309991c88db27b5ff40
Source noteuspto-grants-1997_04