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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 622005Generated: October 29, 2026

Hydrochloric Acid → 2-(4-Chlorophenyl)-N-[4-(dimethylamino)phenyl]-N-methyl-3H-imidazo[4,5-b]pyridine-3-acetamide hydrochloride hydrate

https://huagongshe.com/reaction/622005

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantDiisopropyl EtherHCID 7914—
Reactant2-(4-Chlorophenyl)-N-[4-(dimethylamino)phenyl]-N-methyl-3H-imidazo [4,5-b]pyridine-3-acetamideHCID 14390370—
SolventIsopropanolHCID 3776—
Product2-(4-Chlorophenyl)-N-[4-(dimethylamino)phenyl]-N-methyl-3H-imidazo[4,5-b]pyridine-3-acetamide hydrochloride hydrateHCID 23037420118.6%

Reaction Steps

A solution of 2-(4-chlorophenyl)-N-[4-(dimethylamino)phenyl]-N-methyl-3H-imidazol[4.5-b]pyridine-3-acetamide (5.6 g, 0.0133 mole) in hot isopropyl alcohol was acidified with hydrogen chloride in isopropyl alcohol. Isopropyl ether was added to precipitate a solid. The solid was collected by filtration, rinsed with isopropyl ether, and dried under high vacuum to give 3.74 g (52%) of title compound, mp 120°-132° C. (shrinks), 150°-155° C. (melts).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04824951
Source datasetuspto-grants-1989_04
ORD IDord-a37944a321004104a9ceddb1af56b11c
Source noteuspto-grants-1989_04