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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1922899Generated: October 26, 2026

Methanol → 4-bromo-N-ethylisoquinolin-1-amine

https://huagongshe.com/reaction/1922899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethanolHCID 887—
ReactantEthylamineHCID 6341—
Reactant4-Bromo-1-chloroisoquinolineHCID 459766—
Product4-bromo-N-ethylisoquinolin-1-amineHCID 5960520388%

Reaction Conditions

Temperature50 °C

Reaction Steps

To a suspension of 4-bromo-1 chloroisoquinoline (0.831 g, 3.43 mmol) in MeOH (10.3 mL, 254 mmol) was added ethylamine (70% in water, 1.1 mL). The mixture was heated at 50° C. for 16 h. The mixture was concentrated. The residue was partitioned between water (20 mL) and DCM (20 mL). DCM layer was separated. The aqueous layer was extracted with DCM (10 mL) The combined DCM solutions were dried (Na2SO4). Filtration and concentration gave 4-bromo-N-ethylisoquinolin-1-amine (0.761 g, 88%). LCMS: M+H+=251.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08173650B2
Source datasetuspto-grants-2012_05
ORD IDord-ac312d68479d428696847172550e0583
Source noteuspto-grants-2012_05