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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1252373Generated: October 27, 2026

2-Pyridinemethanamine → 5-methyl-2-(2-pyridinyl)-1H-imidazole-3-carboxylic acid, ethyl ester

https://huagongshe.com/reaction/1252373

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-PyridinemethanamineHCID 19509—
ReactantEthyl 2,3-dioxobutanoateHCID 12260829—
SolventAcetonitrileHCID 6342—
Product5-methyl-2-(2-pyridinyl)-1H-imidazole-3-carboxylic acid, ethyl esterHCID 86742156106.5%

Reaction Steps

A mixture of 23.8 g of 2,3-dioxobutyric acid, ethyl ester, (Z)-2-oxime, 18 g of 2-aminomethyl pyridine and 250 ml of acetonitrile was refluxed for 7 hours and then stored at -10° C. overnight. The solid was collected, giving 20.68 g of 5-methyl-2-(2-pyridinyl)-1H-imidazole-3-carboxylic acid, ethyl ester.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04743586
Source datasetuspto-grants-1988_05
ORD IDord-7492aeaa95e2494e88ee1e2c521bf10c
Source noteuspto-grants-1988_05