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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 992899Generated: October 31, 2026

Water → HCID 18408345, compound

https://huagongshe.com/reaction/992899

Reaction equation

Participants

RoleNameHCIDCharge
ReactantWaterHCID 962—
Reactant1,1'-CarbonyldiimidazoleHCID 68263—
ReactantHCID 15457077HCID 15457077—
SolventTetrahydrofuranHCID 8028—
ProductHCID 18408345HCID 1840834563%

Reaction Steps

0.6 g (1.9 mmol) of 3-(5-amino-2-chloro-4-hydroxyphenyl)-1-methyl-6-trifluoromethyl-2(1H)-pyridone and 0.35 g (2.2 mmol) of CDI were dissolved in 5 ml of THF, followed by stirring for 1 hour under heating and refluxing. After completion of the reaction, the reaction solution was poured into water and extracted with ethyl acetate. The organic layer was washed with water and dried over anhydrous magnesium sulfate. The organic layer was distilled off under reduced pressure, and the obtained residue was purified by silica gel column chromatography to obtain 0.41 g (yield: 63%) of the desired product. Melting point: 263-265° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06472348B1
Source datasetuspto-grants-2002_10
ORD IDord-f30cfb089f0442ffa2b6e5a53ccec33c
Source noteuspto-grants-2002_10