Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 862426Generated: October 31, 2026

Ethyl bromoacetate → HCID 70048956, compound

https://huagongshe.com/reaction/862426

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthyl bromoacetateHCID 7748—
ReactantTriethylamineHCID 8471—
Reactant1,2,3,4-Tetrahydro-7-nitroisoquinolineHCID 6424833—
Reactant1,4-Dioxane hydrochlorideHCID 20443148—
SolventEthanolHCID 702—
ProductHCID 70048956HCID 70048956—

Reaction Steps

7-Nitro-1,2,3,4-tetrahydroisoquinoline (5.78 g) was dissolved in ethanol (400 ml), triethylamine (7.8 ml) and ethyl bromoacetate (4.5 g) were added, and the mixture was heated and refluxed for 1 hour. Most of the solvent was distilled off under reduced pressure, concentrated residue was extracted with ethyl acetate and the extracted solution was dried with anhydrous magnesium sulfate. The solvent distilled off under reduced pressure and the crude product obtained was purified by silica gel column chromatography using a solvent mixture, ethyl acetate:n-hexane=1:3, as a developer. The compound obtained was treated with a hydrochloric acid/dioxane solution to obtain ethyl 7-nitro-1,2,3,4-tetrahydro-isoquinoline-2-acetate hydrochloride (4.2 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05719145
Source datasetuspto-grants-1998_02
ORD IDord-a0f6c2a806f14b3887ff1701747dfae0
Source noteuspto-grants-1998_02