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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2203025Generated: November 1, 2026

Sodium Bicarbonate → 6-Bromo-2-cyclopropyl-3-methylimidazo[1,2-b]pyridazine

https://huagongshe.com/reaction/2203025

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium BicarbonateHCID 516892—
Reactant6-Bromopyridazin-3-amineHCID 2794779—
Reactant2-Bromo-1-cyclopropylpropan-1-oneHCID 45080805—
SolventDimethylacetamideHCID 31374—
Product6-Bromo-2-cyclopropyl-3-methylimidazo[1,2-b]pyridazineHCID 8969029075.9%

Reaction Conditions

Temperature80 °C

Reaction Steps

To a solution of 6-bromopyridazin-3-amine (1.0 g) in DMA (10 ml) were added 2-bromo-1-cyclopropylpropan-1-one (2.04 g) and NaHCO3 (0.966 g) at room temperature, and the mixture was stirred at 80° C. for 16 h. The mixture was partitioned between EtOAc and water, and the organic layer was washed with brine, dried over MgSO4, concentrated in vacuo, and purified by silica gel column chromatography (hexane/EtOAc) to give the title compound (1.10 g) as yellow crystals.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09365540B2
Source datasetuspto-grants-2016_06
ORD IDord-6798e30b905a47f68c313087aa4add32
Source noteuspto-grants-2016_06