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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 923770Generated: October 28, 2026

Methyl trifluoroacetate → HCID 67981276, compound

https://huagongshe.com/reaction/923770

Reaction equation

Participants

RoleNameHCIDCharge
ReactantMethyl trifluoroacetateHCID 9893—
ReactantAmmonium ChlorideHCID 25517—
Reactant6-bromo-2-(2-ethylsulfanylphenyl)-3-methyl-3H-imidazo[4,5-b]pyridineHCID 67982033—
ReactantButyllithiumHCID 178418339—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67981276HCID 67981276—

Reaction Conditions

Temperature-78 °C

Reaction Steps

To a mixture of 6-bromo-2-(2-ethylsulfanyl-phenyl)-3-methyl-3H-imidazo[4,5-b]pyridine (1 g) and THF (20 ml), n-butyllithium (1.5 M in hexane, 2.1 ml) was added dropwise at −78° C. The mixture was stirred at −78° C. for 30 minutes, and then methyl trifluoroacetate (577 μl) was added dropwise. The mixture was heated to room temperature, and then saturated aqueous ammonium chloride solution was poured, and extracted with ethyl acetate. The combined organic layer was dried over sodium sulfate, and concentrated under reduced pressure to give 778 mg of crude 1-[2-(2-ethylsulfanyl-phenyl)-3-methyl-3H-imidazo[4,5-b]pyridin-6-yl]-2,2,2-trifluoro-ethanone (hereinafter referred to as Present Compound 91).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09278983B2
Source datasetuspto-grants-2016_03
ORD IDord-edfa6bd807484c249ac813ae6bf40ba6
Source noteuspto-grants-2016_03