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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 884914Generated: November 1, 2026

Dimethylamine → HCID 66880055, compound

https://huagongshe.com/reaction/884914

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDimethylamineHCID 674—
ReactantDimethylformamideHCID 6228—
ReactantPotassium CarbonateHCID 11430—
Reactant2-(3-Fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazoleHCID 66880180—
SolventWaterHCID 962—
SolventTetrahydrofuranHCID 8028—
ProductHCID 66880055HCID 66880055—

Reaction Conditions

Temperature60 °C

Reaction Steps

To a mixture of 0.28 g of 2-(3-fluoropyridin-4-yl)-5-(trifluoromethyl)benzoxazole, 0.14 g of potassium carbonate and 3 ml of DMF, 3 ml of a THF solution of dimethylamine was added and stirred while heating at 60° C. for 3.3 hours. The reaction mixture was cooled to room temperature, and then water was added to the reaction mixture, followed by extraction with ethyl acetate twice. The combined organic layers were washed with a saturated sodium chloride solution, dried over anhydrous magnesium sulfate, and concentrated under reduced pressure. The residue was subjected to silica gel column chromatography, and the resultant crystals were washed with diethyl ether to give 0.27 g of dimethyl-{4-[5-(trifluoromethyl)benzoxazole-2-yl]pyridin-3-yl}amine (hereinafter, referred to as “active compound 131”).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08242133B2
Source datasetuspto-grants-2012_08
ORD IDord-7835e3a06d42449ca8701fb466a28d4a
Source noteuspto-grants-2012_08