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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1916571Generated: November 1, 2026

Water → HCID 44325576, compound

https://huagongshe.com/reaction/1916571

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantSodium hydrideHCID 24758—
Reactant3,6-DichloropyridazineHCID 67331—
Reactant1-PyrrolidineethanolHCID 76288—
SolventTetrahydrofuranHCID 8028—
ProductHCID 44325576HCID 44325576—

Reaction Steps

175 mg (4.01 mmol, 55%) NaH are added to a solution of 0.50 mL (4.04 mmol) N-(2-hydroxyethyl)pyrrolidine in 50 mL THF at 0° C. The reaction solution is stirred for 60 min and heated to RT. 500 mg (3.26 mmol) 3,6-dichloro-pyridazine are added. The solution is stirred for 5 h at RT. 50 mL water are added and the aqueous phase is extracted with 100 mL EtOAc. The organic phase is extracted once with saturated NaCl solution and dried over Na2SO4. The solvent is eliminated i.vac. and further purification is carried out by column chromatography on silica gel (gradient: EtOAc to EtOAc/MeOH/NH3 9:1:0.1).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08618132B2
Source datasetuspto-grants-2013_12
ORD IDord-e8f94771b4f441709db0e9da4bed8860
Source noteuspto-grants-2013_12