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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 650500Generated: October 30, 2026

Chloroacetamide → HCID 21712127, compound

https://huagongshe.com/reaction/650500

Reaction equation

Participants

RoleNameHCIDCharge
ReactantChloroacetamideHCID 6580—
ReactantPotassium CarbonateHCID 11430—
ReactantHCID 178481775HCID 178481775—
ProductHCID 21712127HCID 2171212786%

Reaction Conditions

Temperature50 °C

Reaction Steps

20.0 g of 3-chloro-6-(4-chloro-5-difluoromethoxy-1-methyl-[1H]-pyrazol-3-yl)-5-fluoropyridin-2-ol (Example P27) are placed together with 18.9 g of potassium carbonate and 6.4 g of chloroacetamide at 22° C. and the mixture is stirred overnight at 50° C. The next day, the mixture is cooled to 22° C. and then introduced into 2 liters of ice-water. After subsequently stirring for 10 minutes at 22° C., the resulting slurry is filtered. The filtration residue is washed with cold water and then dried in vacuo at 60° C. 20.2 g of the desired title compound are obtained in the form of a white solid having a melting point of 178-180° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06274536B1
Source datasetuspto-grants-2001_08
ORD IDord-738598b3a060457282d62b00ab119d07
Source noteuspto-grants-2001_08