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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 457008Generated: October 27, 2026

Butylamine → 3-Bromo-N-butylimidazo[1,2-A]pyrazin-8-amine

https://huagongshe.com/reaction/457008

Reaction equation

Participants

RoleNameHCIDCharge
ReactantButylamineHCID 8007—
Reactant3,5-Dibromoimidazo[1,2-a]pyrazineHCID 14207592—
SolventDichloromethaneHCID 6344—
SolventTetrahydrofuranHCID 8028—
Product3-Bromo-N-butylimidazo[1,2-A]pyrazin-8-amineHCID 2107091151.1%

Reaction Conditions

Temperature70 °C

Reaction Steps

To a solution of 3,5-dibromo-imidazo[1,2-a]pyrazine (D) (200 mg, 0.72 mmol) in THF (3.6 ml) was added butylamine (2.2 ml, 21.6 mmol). The mixture was heated at 70° C. for 3 hr. The mixture was then cooled to rt, and diluted with DCM. The organic layer was washed with water, brine, dried and concentrated. The residue was purified on a silica gel column to afford 99 mg (yield 51%) of (3-bromo-imidazo[1,2-a]pyrazin-8-yl)-butyl-amine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07186832B2
Source datasetuspto-grants-2007_03
ORD IDord-81937344802e46d1a69b6365e7092379
Source noteuspto-grants-2007_03