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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 48210Generated: October 25, 2026

N-ethyl-5-bromo-8-nitrotetrahydroisoquinoline → N-ethyl-5-bromo-8-aminotetrahydroisoquinoline

https://huagongshe.com/reaction/48210

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN-ethyl-5-bromo-8-nitrotetrahydroisoquinolineHCID 69895026—
ReactantHCID 178418361HCID 178418361—
CatalystNickelHCID 935—
SolventAcetoneHCID 180—
SolventTetrahydrofuranHCID 8028—
ProductN-ethyl-5-bromo-8-aminotetrahydroisoquinolineHCID 69894940—

Reaction Steps

Raney nickel was refluxed in acetone for 2 hours prior to use to deactivate the metal. The product from Example 26 (0.1 g, 0.35 mmol) was dissolved in THF (10 mL), the Raney nickel added, and the reaction vessel charged with hydrogen gas. After stirring for 1 hour, the Raney nickel was removed by filtration and the solvent removed by filtration to give N-ethyl-5-bromo-8-aminotetrahydroisoquinoline (used without further purification).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06703391B2
Source datasetuspto-grants-2004_03
ORD IDord-88d85bad3d2548ecb739e754cda72ea3
Source noteuspto-grants-2004_03