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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 649164Generated: October 30, 2026

Ethyl Acetate → 7-Chloro-3-hydroxymethyl-2-methylimidazo[2,1-a]isoquinoline

https://huagongshe.com/reaction/649164

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl AcetateHCID 8857—
Reactant7-Chloro-3-ethoxycarbonyl-2-methylimidazo[2,1-a]isoquinolineHCID 13821862—
ReactantAluminium lithium hydrideHCID 21226445—
SolventTetrahydrofuranHCID 8028—
Product7-Chloro-3-hydroxymethyl-2-methylimidazo[2,1-a]isoquinolineHCID 1382186044.5%

Reaction Steps

Lithium aluminum hydride (0.668 g) was added portionwise to a solution of 7-chloro-3-ethoxycarbonyl-2-methylimidazo[2,1-a]isoquinoline (5.1 g) in tetrahydrofuran (100 ml) with ice-cooling under nitrogen atmosphere and the mixture was stirred at room temperature for 1.5 hours. After an addition of ethyl acetate, the mixture was evaporated in vacuo and the residue was extracted with hot ethanol. The extract was treated with activated charcoal and evaporated in vacuo. The residue was recrystallized from 90% ethanol to give 7-chloro-3-hydroxymethyl-2-methylimidazo[2,1-a]isoquinoline (1.94 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04738967
Source datasetuspto-grants-1988_04
ORD IDord-cef9f94a53654b7f922cc611c8e2b1ea
Source noteuspto-grants-1988_04