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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1696721Generated: October 28, 2026

Ethylamine → HCID 59004204, compound

https://huagongshe.com/reaction/1696721

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylamineHCID 6341—
ReactantPotassium CarbonateHCID 11430—
ReactantL-ProlineHCID 145742—
Reactant1-(5-Bromopyridin-2-yl)-5-methoxy-2-(trifluoromethyl)-1H-benzimidazoleHCID 57356905—
CatalystCopper(1+) iodide; Copper(I) iodide; Cuprous iodide; Cuprous iodide (CuI)HCID 24350—
SolventDimethyl SulfoxideHCID 679—
SolventWaterHCID 962—
ProductHCID 59004204HCID 5900420478%

Reaction Conditions

Temperature60 °C

Reaction Steps

Into a 10 ml sealed tube, was placed 1-(5-Bromo-pyridin-2-yl)-5-methoxy-2-trifluoromethyl-1H-benzoimidazole (30 g, 80.65 mmol). To this was added CuI (20 mg), L-Proline (20 g), CH3CH2NH2 (2 ml) and K2CO3 (30 g) followed by the addition of dimethylsulfoxide (DMSO) (6 ml). The resulting solution was allowed to stir for 6 hours at 60° C., then diluted with 10 ml of H2O and extracted two times with 30 ml of EtOAc. Organic layers were combined and washed with 20 ml of H2O. The combined organic layer was dried and concentrated, and the residue was purified by SGC using 1:12-1:6 EtOAc/petroleum ether as eluent to provide 21 g (78%) of Ethyl-[6-(5-methoxy-2-trifluoromethyl-benzoimidazol-1-yl)-pyridin-3-yl]-amine (Compound 162) as a white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163777B2
Source datasetuspto-grants-2012_04
ORD IDord-67dd5be0373649e5a735aa7b9a39c6bc
Source noteuspto-grants-2012_04