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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1472867Generated: October 26, 2026

Hydrogen Bromide → 6-Bromo-4-methylpyridin-2-amine

https://huagongshe.com/reaction/1472867

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantSodium BicarbonateHCID 516892—
Reactant3-Hydroxy-3-methylpentanedinitrileHCID 12720707—
Product6-Bromo-4-methylpyridin-2-amineHCID 22176507—

Reaction Steps

Hydrogen bromide solution (33 wt. % in acetic acid) (17.8 ml, 98.92 mmol) was added dropwise to 3-hydroxy-3-methyl-pentanedinitrile (3.07 g, 24.73 mmol) with stirring. The reaction was stirred overnight at room temperature. Saturated aqueous sodium hydrogencarbonate was added until neutralised. The resulting white precipitate was collected by filtration, washed with water and dried under vacuum to give the desired product. Yield 2.55 g, 55%. LCMS MI: 186.89+188.91, RT: 3.16 min, Method: 2.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09012633B2
Source datasetuspto-grants-2015_04
ORD IDord-ac4f3cf4262a4af68949e86795e7bf03
Source noteuspto-grants-2015_04