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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 856788Generated: October 30, 2026

Ethanol → HCID 69521322, compound

https://huagongshe.com/reaction/856788

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthanolHCID 702—
ReactantCalcium ChlorideHCID 5284359—
ReactantHCID 69522241HCID 69522241—
SolventWaterHCID 962—
ProductHCID 69521322HCID 69521322103.1%

Reaction Steps

A mixture of 5-methyl-3-[(4-nitrophenylthio) methyl]imidazo[1,2-a]pyridine (1.80 g), reduced iron (1.68 g) and calcium chloride (0.33 g) in 15% water-containing ethanol (54 ml) was heated to reflux for 24 hours. The insolubles were removed by filtration, and the filtrate was concentrated under reduced pressure. The residue was extracted with ethyl acetate, washed with saturated brine, and dried over magnesium sulfate. The solvent was concentrated under reduced pressure. The obtained residue was separated and purified by column chromatography (ethyl acetate:hexane 1:1→2:1), to give 4-[[(5-methylimidazo[1,2-a]pyridin-3-yl)methyl]thio]aniline (1.67 g) as yellow oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07262185B2
Source datasetuspto-grants-2007_08
ORD IDord-cb2e417a1fc744d5a0b795f48562ebd3
Source noteuspto-grants-2007_08