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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2370044Generated: October 30, 2026

Chloroacetaldehyde → 6-Chloro-7-methylimidazo[1,2-b]pyridazine

https://huagongshe.com/reaction/2370044

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroacetaldehydeHCID 33—
Reactant6-Chloro-5-methylpyridazin-3-amineHCID 12353663—
Solvent1-ButanolHCID 263—
Product6-Chloro-7-methylimidazo[1,2-b]pyridazineHCID 1224833633.4%

Reaction Steps

6-chloro-5-methylpyridazin-3-amine 7 (0.6 g, 4.18 mmol) was dissolved in n-butanol (10 ml) and chloroacetaldehyde (0.328 g, 4.18 mmol) was added. The reaction was refluxed for 6 hrs and n-butanol was removed under reduced pressure. The crude product was purified by column chromatography (DCM/hexane, 70:30) to afford compound 8 (0.234 g, yield=33.4%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08710057B2
Source datasetuspto-grants-2014_04
ORD IDord-628d679f24a04e08b2af763659ac6b14
Source noteuspto-grants-2014_04