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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 382003Generated: October 28, 2026

1-Butanol → HCID 21933852, compound

https://huagongshe.com/reaction/382003

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-ButanolHCID 263—
ReactantSodium bis(trimethylsilyl)amideHCID 2724254—
Reactant4,5-Dichloro-2-(3,4-difluorophenyl)pyridazin-3(2H)-oneHCID 21934308—
SolventTetrahydrofuranHCID 8028—
ProductHCID 21933852HCID 2193385279.4%

Reaction Steps

To a stirred, room temperature solution of n-butanol (0.81 g, 10.93 mmol, 1.1 equiv.) in THF (20 mL) was slowly added 1.0 M sodium bis(trimethylsilyl)amide in THF (12 mL, 12 mmol, 1.2 equiv.). The reaction mixture was stirred for 0.5 hours, then it was transferred to a solution of 2-(3,4-difluorophenyl)-4,5-dichloro-3(2H)-pyridazinone (2.88 g, 10.4 mmol, 1.0 equiv.) in THF (80 mL). The resulting reaction mixture was stirred for 0.5 hours at room temperature to provide the title compound (2.5 g, 79.4%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06307047B1
Source datasetuspto-grants-2001_10
ORD IDord-3425c53fe9af4ad4adfc0293f6cea546
Source noteuspto-grants-2001_10