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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80951Generated: October 26, 2026

Water → 6-Chloro-2-cyclopropylmethyl-2H-pyridazin-3-one

https://huagongshe.com/reaction/80951

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantPotassium CarbonateHCID 11430—
ReactantBromomethylcyclopropaneHCID 81503—
Reactant6-Chloropyridazin-3-olHCID 252828—
SolventDimethylformamideHCID 6228—
Product6-Chloro-2-cyclopropylmethyl-2H-pyridazin-3-oneHCID 58109513—

Reaction Conditions

Temperature60 °C

Reaction Steps

Cyclopropylmethyl bromide (0.82 mL) was added to a mixture of 6-chloro-2H-pyridazin-3-one (1.0 g) and K2CO3 (2.10 g) in N,N-dimethylformamide (10 mL). The resulting mixture was stirred at 60° C. overnight. Then, water was added and the mixture was extracted with ethyl acetate. The combined organic extracts were washed with water and brine and dried (MgSO4). After removal of the solvent, the residue was purified by chromatography on silica gel (CH2Cl2/MeOH/NH4OH 99:1:0.1) to afford the title compound as an oil.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08846668B2
Source datasetuspto-grants-2014_09
ORD IDord-5c941b44a5f24da98bbb55349a3ff332
Source noteuspto-grants-2014_09