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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27893Generated: October 25, 2026

Butanenitrile, 3-imino- → 1-(6-chloropyridazin-3-yl)-3-methyl-1H-pyrazol-5-amine

https://huagongshe.com/reaction/27893

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButanenitrile, 3-imino-HCID 70698—
Reactant3-Chloro-6-hydrazinopyridazineHCID 100787—
SolventEthanolHCID 702—
Product1-(6-chloropyridazin-3-yl)-3-methyl-1H-pyrazol-5-amineHCID 6408845—

Reaction Steps

A mixture of 14.5 g (0.1 moles) of 3-chloro-6-pyridazinyl-hydrazine, 8.5 g (0.1 moles) of 3-iminobutyronitrile and 150 ml of ethanol is heated to reflux for 9 hours. After cooling the separated crystals are filtered, washed with ethanol and dried. Yield: 15.6 g (74.0%); m.p.: 148°-150° C. The hydrochloride melts at 157°-159° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04224325
Source datasetuspto-grants-1980_09
ORD IDord-f95930bf92b241b29b08fdf04c19328f
Source noteuspto-grants-1980_09