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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2205203Generated: November 1, 2026

p-Toluenesulfonic acid → HCID 90388249, compound

https://huagongshe.com/reaction/2205203

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acidHCID 6101—
ReactantCyclopropylamineHCID 69828—
Reactant8-Bromo-6-chloroimidazo(1,2-b)pyridazineHCID 46835269—
SolventDimethyl SulfoxideHCID 679—
ProductHCID 90388249HCID 9038824980%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 8-bromo-6-chloroimidazo[1,2-b]pyridazine (1.00 g, 3.21 mmol, 1.0 equiv) and p-TSA (611 mg, 3.21 mmol, 1.0 equiv) in DMSO (10.0 mL) was added cyclopropylamine (1.13 mL, 16.1 mmol, 5.0 equiv) and heated to 100° C. for 24 h. Purification by column chromatography using 50% ethyl acetate in hexanes elution gave 536 mg of the white solid, 80%.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09370515B2
Source datasetuspto-grants-2016_06
ORD IDord-244af766cb9b4ccc966b39a58823707d
Source noteuspto-grants-2016_06