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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2079552Generated: October 29, 2026

Acetic Acid → 6-Chloro-1H-imidazo[4,5-C]pyridine-4-carbonitrile

https://huagongshe.com/reaction/2079552

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAcetic AcidHCID 176—
ReactantEthyl orthoformateHCID 31214—
Reactant3,4-Diamino-6-chloropyridine-2-carbonitrileHCID 59218344—
SolventDichloromethaneHCID 6344—
Product6-Chloro-1H-imidazo[4,5-C]pyridine-4-carbonitrileHCID 45120583—

Reaction Steps

A mixture of 3,4-diamino-6-chloropicolinonitrile (3.2 g), triethylorthoformate (16 ml) and AcOH (5.4 ml) was heated to 150° C. in DCM (16 ml) in a microwave for 15 minutes. Solvent was evaporated, residue was dissolved in EtOAc (250 mL) and washed with water (150 mL). Organic layer was dried over sodium sulphate. Solvent was evaporated under reduced pressure to yield 6-chloro-1H-imidazo[4,5-c]pyridine-4-carbonitrile (2.2 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07932251B2
Source datasetuspto-grants-2011_04
ORD IDord-43b04cbf6f794fea943b7891296d06d4
Source noteuspto-grants-2011_04