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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2239903Generated: October 31, 2026

Pyridine → HCID 68481761, compound

https://huagongshe.com/reaction/2239903

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
Reactant2-Cyanoacetyl chlorideHCID 11051594—
Reactantethyl 1-amino-1H-imidazole-2-carboxylateHCID 58332105—
Solvent1,2-DichloroethaneHCID 11—
ProductHCID 68481761HCID 6848176166.3%

Reaction Steps

In a 100 ml RB flask was added ethyl 1-amino-1H-imidazole-2-carboxylate (0.4 g, 2.58 mmol) from (1a), DCE (12.0 mL), 2-cyanoacetyl chloride (0.320 g, 3.09 mmol) and pyridine (0.417 mL, 5.16 mmol). The resulting mixture was stirred overnight under nitrogen at room temperature. The reaction was concentrated and diluted with ethyl acetate and washed with water (2×), then the aqueous was back-extracted with ethyl acetate. The organics were collected, washed with brine, dried over Na2SO4, filtered and concentrated in vacuo to provide ethyl 1-(2-cyanoacetamido)-1H-imidazole-2-carboxylate (0.38 g, 66.3% yield).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07723336B2
Source datasetuspto-grants-2010_05
ORD IDord-9c8af879c25a42d9b33a458ae5da62e7
Source noteuspto-grants-2010_05