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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1478683Generated: November 1, 2026

Ammonium Acetate → 1-[3-(3,5-Difluorophenyl)-5-methylimidazo[1,2-a]pyridin-2-yl]ethanamine

https://huagongshe.com/reaction/1478683

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium AcetateHCID 517165—
ReactantSodium cyanoborohydrideHCID 5003444—
Reactant1-[3-(3,5-Difluorophenyl)-5-methylimidazo[1,2-a]pyridin-2-yl]ethanoneHCID 58379308—
SolventMethanolHCID 887—
Product1-[3-(3,5-Difluorophenyl)-5-methylimidazo[1,2-a]pyridin-2-yl]ethanamineHCID 5837931056%

Reaction Conditions

Temperature65 °C

Reaction Steps

A solution of 1-[3-(3,5-difluorophenyl)-5-methylimidazo[1,2-a]pyridin-2-yl]ethanone (0.23 g, 0.82 mmol) in methanol (9.5 mL) was treated with ammonium acetate (0.63 g, 8.2 mmol) and heated at 65° C. for 1 h. The reaction mixture was treated with sodium cyanoborohydride (0.15 g, 2.5 mmol) and heated at 65° C. for 4 h. The reaction mixture was concentrated and purified by preparative LCMS to give the desired product (0.13 g, 56%) as a colorless oil. LCMS for C16H16F2N3 (M+H)+: m/z=288.1.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09403847B2
Source datasetuspto-grants-2016_08
ORD IDord-b1af0865ec414d95a012f218ce0c3bbc
Source noteuspto-grants-2016_08