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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 19447Generated: October 26, 2026

2-(Ethoxymethylene)propanedinitrile → 3,7-dip-tolyl-3H-imidazo[4,5-b]pyridine

https://huagongshe.com/reaction/19447

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-(Ethoxymethylene)propanedinitrileHCID 67152—
ReactantN2,4-dip-tolylpyridine-2,3-diamineHCID 86622263—
SolventIsopropanolHCID 3776—
Product3,7-dip-tolyl-3H-imidazo[4,5-b]pyridineHCID 6855788284%

Reaction Steps

0.70 mol of N2,4-dip-tolylpyridine-2,3-diamine and 2.56 mol of 2-(ethoxymethylene)malonnitrile were added in 10 ml of isopropanol, and refluxed for 6 hours. The solution was removed and was purified by using column chromatography to thereby produce a solid crystalline product at a yield of 84%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07745020B2
Source datasetuspto-grants-2010_06
ORD IDord-28dfca87989749a49ff2d38ea0776f26
Source noteuspto-grants-2010_06