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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1824696Generated: October 31, 2026

Hydrochloric Acid → HCID 22142147, compound

https://huagongshe.com/reaction/1824696

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantPyridineHCID 1049—
ReactantAcetyl chlorideHCID 6367—
ReactantHCID 22142154HCID 22142154—
SolventWaterHCID 962—
SolventEthyl AcetateHCID 8857—
ProductHCID 22142147HCID 22142147—

Reaction Steps

To [3-fluoro-4-[3-(trifluoromethyl)phenoxy]phenyl]hydrazine hydrochloride (0.35 g) prepared using the method described in Example 1, in ethyl acetate (5 mL), was added pyridine (0.24 mL) at −10° C. After dropwise addition of acetyl chloride (0.1 mL), the mixture was stirred for 3 h and then acidified with 6 M HCl. Water was added, and the product was extracted with ether. The organic layer was separated, dried, and concentrated. The residue was purified by column chromatography on silica (using dichloromethane, followed by 5:1 dichloromethane:ether as eluants) to give a solid (0.2 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07045512B2
Source datasetuspto-grants-2006_05
ORD IDord-8d75ea7c051b451ca8495733475d3360
Source noteuspto-grants-2006_05