HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 80951Generated: October 25, 2026
Water → 6-Chloro-2-cyclopropylmethyl-2H-pyridazin-3-one
https://huagongshe.com/reaction/80951
Participants
| Role | Name | HCID | Charge |
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| Reactant | Water | HCID 962 | — |
| Reactant | Potassium Carbonate | HCID 11430 | — |
| Reactant | Bromomethylcyclopropane | HCID 81503 | — |
| Reactant | 6-Chloropyridazin-3-ol | HCID 252828 | — |
| Solvent | Dimethylformamide | HCID 6228 | — |
| Product | 6-Chloro-2-cyclopropylmethyl-2H-pyridazin-3-one | HCID 58109513 | — |
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
| DOI | 10.6084/m9.figshare.5104873.v1 |
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| Patent number | US08846668B2 |
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| Source dataset | uspto-grants-2014_09 |
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| ORD ID | ord-5c941b44a5f24da98bbb55349a3ff332 |
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| Source note | uspto-grants-2014_09 |
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