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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2196726Generated: November 2, 2026

Water → HCID 67156000, compound

https://huagongshe.com/reaction/2196726

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
ReactantEthyl AcetateHCID 8857—
ReactantSodium HydroxideHCID 14798—
ReactantHCID 67156200HCID 67156200—
SolventMethanolHCID 887—
SolventTetrahydrofuranHCID 8028—
ProductHCID 67156000HCID 6715600087.3%

Reaction Conditions

Temperature40 °C

Reaction Steps

Sodium hydroxide (4.2 mL, 4.2 mmol, 1M in water) was added to a solution of methyl 5-nitro-2-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine-1-carboxylate (0.35 g, 1.19 mmol) in THF (6.9 mL) and methanol (1.7 mL) at room temperature. The reaction mixture was heated at 40° C. for 30 minutes. The reaction mixture was then cooled down and treated with water and ethyl acetate. The layers were then separated. The organic layers were washed twice with water, dried over sodium sulfate, filtered, and evaporated to afford 5-nitro-2-(trifluoromethyl)-1H-pyrrolo[2,3-b]pyridine (0.24 g, 86%), which was carried to the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08338452B2
Source datasetuspto-grants-2012_12
ORD IDord-c1864eec90224cdf96c44352f7121318
Source noteuspto-grants-2012_12