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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1896704Generated: November 1, 2026

Sodium Hydroxide → HCID 67213944, compound

https://huagongshe.com/reaction/1896704

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantSodium hydrideHCID 24758—
Reactant2,5-DibromopyridineHCID 69353—
Reactant1-(2-Hydroxyethyl)-2-pyrrolidinoneHCID 76980—
SolventWaterHCID 962—
SolventN-methyl-2-pyrrolidoneHCID 13387—
ProductHCID 67213944HCID 67213944—

Reaction Conditions

Temperature80 °C

Reaction Steps

2.45 g (19 mmol) of 1-(2-hydroxyethyl)-pyrrolidin-2-one and 0.83 g (19 mmol) of sodium hydride (55% in mineral oil) in 10 ml of NMP were stirred at room temperature for 1 h. 3.0 g (12.7 mmol) of 2,5-dibromopyridine were added, and the mixture was heated to 80° C. for 2 h. Water was added, and the mixture was extracted with ethyl acetate. The combined organic phases were dried and concentrated. The remaining oil was taken up in 200 ml of tert-butyl methyl ether and treated with a solution of hydrogen chloride in diethyl ether. The resulting greasy solid was isolated by decantation of the solvent and treated with a 25% aqueous sodium hydroxide solution. The product was extracted with ethyl acetate, and the combined organic phases were dried and concentrated. Yield: 2.75 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08518976B2
Source datasetuspto-grants-2013_08
ORD IDord-2dd570bdb65445429d5e4ceb3f538846
Source noteuspto-grants-2013_08