Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1853427Generated: November 1, 2026

Pyridine → HCID 68753912, compound

https://huagongshe.com/reaction/1853427

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPyridineHCID 1049—
ReactantHydrazineHCID 9321—
Reactant4-(Trifluoromethyl)anthranilic acidHCID 67869—
ReactantCyclopropanecarbonyl chlorideHCID 77637—
SolventTetrahydrofuranHCID 8028—
SolventEthyl AcetateHCID 8857—
ProductHCID 68753912HCID 68753912—

Reaction Conditions

Temperature70 °C

Reaction Steps

Cyclopropanecarbonyl chloride (2.71 ml, 29.6 mmol) was added to a solution of 2-amino-4-(trifluoromethyl)benzoic acid (2.00 g, 9.75 mmol) in THF (50 mL) followed by pyridine (4.07 ml, 50.3 mmol). The mixture was stirred at 70° C. overnight. The mixture was cooled at 0° C., hydrazine was added, and the reaction was stirred at room temperature for 30 minutes and then at 75° C. for 24 hours. The reaction was cooled at 22° C., diluted with ethyl acetate, washed with aq. NaHCO3, dried with magnesium sulfate, filtered, and concentrated. The residue was suspended in toluene and concentrated again. The process was repeated to obtain the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08962639B2
Source datasetuspto-grants-2015_02
ORD IDord-e03a4f8e53e7447d8f4f6d84a8ba3c32
Source noteuspto-grants-2015_02