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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1786188Generated: November 1, 2026

Hydrazine hydrate (1:1) → 2-Ethyl-1H-imidazole-1-acetic acid hydrazide

https://huagongshe.com/reaction/1786188

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazine hydrate (1:1)HCID 24654—
ReactantHCID 61345551HCID 61345551—
Solvent1-ButanolHCID 263—
Product2-Ethyl-1H-imidazole-1-acetic acid hydrazideHCID 4994915694%

Reaction Steps

As described for example 112a, (2-ethyl-imidazol-1-yl)-acetic acid ethyl ester in butanol was reacted with hydrazine hydrate (1.2 equivalents) at 100° C. for 6 h. Evaporation of all volatiles and crystallization from methanol/diisopropylether afforded the title compound as a white solid (yield: 94%). MS: m/e=169.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07507729B2
Source datasetuspto-grants-2009_03
ORD IDord-0e0afe34ff914098b8cee6118339d5a9
Source noteuspto-grants-2009_03