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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1809191Generated: October 30, 2026

Ammonium Chloride → 1-methyl-1H-imidazole-2-carboxamide

https://huagongshe.com/reaction/1809191

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
Reactantethyl 1-methyl-1H-imidazole-2-carboxylateHCID 4261883—
SolventAmmonium HydroxideHCID 14923—
Product1-methyl-1H-imidazole-2-carboxamideHCID 4470411,969.4%

Reaction Conditions

Temperature100 °C

Reaction Steps

NH4Cl (0.150 g, 2.8 mmol) is added to a solution of 1-methyl-1H-imidazole-2-carboxylic acid ethyl ester (15.5 g, 101 mmol) in ammonium hydroxide 35% (112 mL) and the reaction is stirred for 6 h at 100° C. in a sealed reaction flask. The reaction is cooled to 0° C. and the solid formed filtered and washed with ice water and ether to give 1-methyl-1H-imidazole-2-carboxylic acid amide as brown crystals (6.9 g, 55%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08362018B2
Source datasetuspto-grants-2013_01
ORD IDord-1ef714ab29924cd9a926a132c9abbbd0
Source noteuspto-grants-2013_01