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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 74569Generated: October 30, 2026

Hydrochloric Acid → 4-Methyl-1,2,3,4-tetrahydroisoquinoline hydrochloride

https://huagongshe.com/reaction/74569

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantIsoquinoline, 4-methyl-HCID 640939—
ReactantHCID 178418361HCID 178418361—
CatalystAdams' catalystHCID 345198—
SolventMethanolHCID 887—
Product4-Methyl-1,2,3,4-tetrahydroisoquinoline hydrochlorideHCID 13738935—

Reaction Steps

In a hydrogen atmosphere 0.50 g (3.5 mmol) 4-methyl-isoquinoline, 50 mg platinum dioxide in 50 mL methanol and 3.5 mL 1M aqueous hydrochloric acid solution were hydrogenated at RT and 3 bar for 4 h. After removal of the catalyst by suction filtering the reaction mixture was evaporated down. A mixture of educt and product was obtained, which was reacted further without any further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08829006B2
Source datasetuspto-grants-2014_09
ORD IDord-1321a3bcf39b40b99dddf7a6e3b25de7
Source noteuspto-grants-2014_09