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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 323215Generated: October 26, 2026

Hydrogen Bromide → (1-methyl-1H-benzimidazol-2-yl)(piperidin-4-yl)amine

https://huagongshe.com/reaction/323215

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrogen BromideHCID 260—
ReactantPotassium HydroxideHCID 14797—
Reactant(1-methyl-1H-benzimidazol-2-yl)(1-ethoxycarbonylpiperidin-4-yl)amineHCID 12891475—
SolventWaterHCID 962—
Product(1-methyl-1H-benzimidazol-2-yl)(piperidin-4-yl)amineHCID 22009124—

Reaction Steps

Combine (1-methyl-1H-benzimidazol-2-yl)(1-ethoxycarbonylpiperidin-4-yl)amine (0.42 g, 1.4 mmol) and 48% hydrobromic acid (25 mL). Heat to reflux. After 3 hours, cool add water and a solution of potassium hydroxide (5 g) in water (50 mL). Extract twice with dichloromethane. Dry the organic layer over Na2SO4, filter, and evaporate in vacuo to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06211199B1
Source datasetuspto-grants-2001_04
ORD IDord-90ae38f86f214873ba5d0be0c4ba5a07
Source noteuspto-grants-2001_04