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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1822936Generated: October 26, 2026

Triethylamine → 4-(3-Chloro-2-pyridinyl)aniline

https://huagongshe.com/reaction/1822936

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTriethylamineHCID 8471—
ReactantP,P-Diphenylphosphinic azideHCID 199401—
Reactant4-(3-Chloropyridin-2-yl)benzoic acidHCID 22170454—
SolventWaterHCID 962—
SolventDimethylformamideHCID 6228—
Product4-(3-Chloro-2-pyridinyl)anilineHCID 22170450—

Reaction Conditions

Temperature65 °C

Reaction Steps

The product from Example 24A (104 mg, 0.444 mmol) and triethylamine (0.095 mL, 0.68 mmol) were combined in DMF (3 mL) and treated with diphenylphosphoryl azide (0.14 mL, 0.65 mmol). After stirring for 4 hours, the mixture was treated with water (0.30 mL) and heated at 65° C. for 1 hour. The mixture was allowed to cool to room temperature, diluted with water (7 mL), and extracted with diethyl ether (7 mL). The organic layer was washed with brine (7 mL), dried (Na2SO4), filtered, and the filtrate concentrated under reduced pressure. The residue was purified by flash chromatography (50% ethyl acetate in hexanes) to provide the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07037927B2
Source datasetuspto-grants-2006_05
ORD IDord-ca95ab7ac94d4548a7007a36cb593fce
Source noteuspto-grants-2006_05