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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 903060Generated: October 30, 2026

3-ethyl-1-methyl-1H-pyrazol-5-amine → 1-Acetyl-2-(3-ethyl-1-methyl-5-pyrazolyl) amino-2-imidazoline

https://huagongshe.com/reaction/903060

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3-ethyl-1-methyl-1H-pyrazol-5-amineHCID 15135782—
ReactantN-acetyl-2-imidazolinoneHCID 22350258—
Product1-Acetyl-2-(3-ethyl-1-methyl-5-pyrazolyl) amino-2-imidazolineHCID 57218582—

Reaction Steps

5-Amino-3-ethyl-1-methyl pyrazole (British Patent 863,060) (35.2 g.) and 1-acetyl-2-imidazolinone (43.2 g.) were reacted as described in Example I to give 1-acetyl -2-(3-ethyl-1-methyl-5-pyrazolyl) amino-2-imidazoline which was de-acetylated without purification by the method of Example II giving 39.3 g. product. mp 160°-162°

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04226773
Source datasetuspto-grants-1980_10
ORD IDord-ccac2e30f0a54139b16eabeaf29587f7
Source noteuspto-grants-1980_10