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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1764637Generated: October 25, 2026

Hydrazinecarboxaldehyde → 6-(p-Bromophenyl)-1,2,4-triazolo[4,3-b]pyridazine

https://huagongshe.com/reaction/1764637

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrazinecarboxaldehydeHCID 12229—
Reactant3-(4-Bromophenyl)-6-chloropyridazineHCID 6405255—
Solvent1-ButanolHCID 263—
Product6-(p-Bromophenyl)-1,2,4-triazolo[4,3-b]pyridazineHCID 22768933—

Reaction Steps

A mixture of 3.76 g. of 3-(p-bromophenyl)-6-chloropyridazine, 1.80 g. of formylhydrazine and 50 ml. of butyl alcohol is heated to reflux and allowed to reflux overnight. The reaction mixture is allowed to cool and the precipitated product is washed with water, air dried and recrystallized from methyl alcohol, m.p. 209°-211° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04117130
Source datasetuspto-grants-1978_09
ORD IDord-75431e61e93e4b2a95d18a4233c3c94c
Source noteuspto-grants-1978_09