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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 533664Generated: October 30, 2026

Sodium Hydroxide → HCID 20598194, compound

https://huagongshe.com/reaction/533664

Reaction equation

Participants

RoleNameHCIDCharge
ReactantSodium HydroxideHCID 14798—
ReactantAluminium lithium hydrideHCID 21226445—
ReactantHCID 68091214HCID 68091214—
SolventTetrahydrofuranHCID 8028—
ProductHCID 20598194HCID 2059819494.7%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a mixture of methyl (2-amino-5-trifluoromethylpyridin-3-yl)-carbamate (100 mg) and THF (15 ml), lithium aluminum hydride (26 mg) was added under ice-cooling. The mixture was stirred for 15 minutes under ice-cooling, heated to 90° C., and stirred with heating for 1.5 hours. Into the reaction mixture cooled to room temperature, aqueous sodium hydroxide solution was poured, and extracted with tert-butyl methyl ether. The organic layer was dried over sodium sulfate, and concentrated under reduced pressure. The resulting residue was subjected to silica gel column chromatography to give 77 mg of N3-methyl-5-trifluoromethylpyridin-2,3-diamine.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08853238B2
Source datasetuspto-grants-2014_10
ORD IDord-fe9ed733182340b19541fecd149d2338
Source noteuspto-grants-2014_10