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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 45816Generated: October 29, 2026

Ammonium Chloride → HCID 67184547, compound

https://huagongshe.com/reaction/45816

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmonium ChlorideHCID 25517—
ReactantHCID 67185846HCID 67185846—
CatalystZincHCID 23994—
Solvent1,4-Dioxane--water (1/1)HCID 21886435—
ProductHCID 67184547HCID 67184547—

Reaction Conditions

Temperature80 °C

Reaction Steps

To 4-[1-(2-fluoroethyl)-3-(3-nitrophenyl)-1H-pyrazol-4-yl]pyridine in a solution of dioxane/water (5:1) ammonium chloride (144 mg, 2.7 mmol) and zinc (70 mg, 1.08 mmol) were added. The reaction was stirred at 80° C. After two hours the reaction was allowed to cool to room temperature and it was poured into Na2HPO4 (pH=8) solution and extracted with ethyl acetate. The organic layer was washed with brine (1×50 mL), dried over Na2SO4 and filtered. The filtrate was concentrated under reduced pressure and it was used in the next step without further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08541575B2
Source datasetuspto-grants-2013_09
ORD IDord-88100f680e8d44ab9b291091f280021c
Source noteuspto-grants-2013_09