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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1164367Generated: October 30, 2026

1,4-Dioxane → 4,5-dichloroimidazole-2-carboxylic acid N-(2-cyanoethyl)-N-methylamide

https://huagongshe.com/reaction/1164367

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1,4-DioxaneHCID 31275—
Reactant4,5-Dichloro-2-(dichloromethylidene)-2H-imidazoleHCID 12482572—
Reactant3-Methylaminopropionitrile hydrochlorideHCID 20511922—
Product4,5-dichloroimidazole-2-carboxylic acid N-(2-cyanoethyl)-N-methylamideHCID 5398228767%

Reaction Steps

24 g (0.2 mol) of 3-methylaminopropionitrile hydrochloride were added to a solution of 21.8 g (0.1 mol) of 4,5-dichloro-2-dichloromethylene-imidazole in 100 ml of dioxane and the mixture was heated to the reflux temperature for two hours, while stirring. After cooling, the product was precipitated with water, filtered off, washed with water and dried. In this way, 16.5 g (67% of theory) of 4,5-dichloroimidazole-2-carboxylic acid N-(2-cyanoethyl)-N-methylamide were obtained. Melting point: 184° C. (from acetonitrile).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04369186
Source datasetuspto-grants-1983_01
ORD IDord-565c451729094ad8b8df8c8fdbfd1de6
Source noteuspto-grants-1983_01