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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1763573Generated: October 25, 2026

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

https://huagongshe.com/reaction/1763573

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 numberUS04112095
Source datasetuspto-grants-1978_09
ORD IDord-7345b9a48ba94d359060d8520e61b17e
Source noteuspto-grants-1978_09