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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 27897Generated: October 26, 2026

Hydrochloric Acid → 3-(2-Hydroxyethylhydrazino)-6-(3,5-dimethyl-1-pyrazolyl)-pyridazine

https://huagongshe.com/reaction/27897

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
Reactant2-HydrazinoethanolHCID 8017—
Reactant3-Chloro-6-(3,5-dimethylpyrazol-1-yl)pyridazineHCID 321073—
SolventEthanolHCID 702—
Product3-(2-Hydroxyethylhydrazino)-6-(3,5-dimethyl-1-pyrazolyl)-pyridazineHCID 54036303—

Reaction Steps

A mixture of 2.09 g (0.01 moles) of 3-chloro-6-(3,5-dimethyl-1-pyrazolyl)-pyridazine, 30 ml of ethanol and 1.52 g (0.02 moles) of hydroxyethyl hydrazine is reacted and worked up in the same way as described in Example 42. Yield: 0.3 g (10.5%); the hydrochloride melts at 302°-305° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04224325
Source datasetuspto-grants-1980_09
ORD IDord-92350680f6dd4a6e8f7418eba77a39b7
Source noteuspto-grants-1980_09