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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1290170Generated: October 29, 2026

Hydrochloric Acid → 8-(3-Amino-2,6-dichlorobenzyloxy)-3-bromo-2-methylimidazo[1,2-a]pyridine dihydrochloride

https://huagongshe.com/reaction/1290170

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant3-Bromo-8-(2,6-dichloro-3-nitrobenzyloxy)-2-methylimidazo[1,2-a]pyridineHCID 11796916—
CatalystIronHCID 23925—
SolventMethanolHCID 887—
Product8-(3-Amino-2,6-dichlorobenzyloxy)-3-bromo-2-methylimidazo[1,2-a]pyridine dihydrochlorideHCID 18923317—

Reaction Steps

A suspension of 3-bromo-8-(2,6-dichloro-3-nitrobenzyloxy)-2-methylimidazo[1,2-a]pyridine (215 mg) and iron (powder, 84 mg) in a mixture of conc. hydrochloric acid (1 ml) and methanol (1 ml) was refluxed for half an hour. The cooled mixture was poured into an ice water (15 ml). The precipitates were collected and washed with water to give 8-(3-amino-2,6-dichlorobenzyloxy)-3-bromo-2-methylimidazo[1,2-a]pyridine dihydrochloride (140 mg) as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05750699
Source datasetuspto-grants-1998_05
ORD IDord-2bf8fdcca0864bd298dd8181c3483414
Source noteuspto-grants-1998_05