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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1519014Generated: November 1, 2026

Difluoroacetic acid → HCID 178522122, compound

https://huagongshe.com/reaction/1519014

Reaction equation

Participants

RoleNameHCIDCharge
ReactantDifluoroacetic acidHCID 9788—
Reactant2-AminopyridineHCID 10439—
Reactant1,3-Propanediamine, N'-(ethylcarbonimidoyl)-N,N-dimethyl-, monohydrochlorideHCID 2723939—
Catalyst4-(Dimethylamino)pyridineHCID 14284—
SolventDichloromethaneHCID 6344—
ProductHCID 178522122HCID 17852212214%

Reaction Steps

2-aminopyridine in an amount of 400 mg (4.26 mmol) was dissolved in 10 mL of anhydrous dichloromethane, following which 322 μL (490 mg, 5.11 mmol) of difluoroacetic acid, 982 mg (5.10 mmol) of EDC-HCl and 622 mg (5.11 mmol) of DMAP were added, and the mixture was stirred at room temperature for 61 hours. Following solution completion, the reaction mixture was diluted with dichloromethane, washed once with water and twice with 1% aqueous HCl, then dried over anhydrous magnesium sulfate, and concentrated under reduced pressure, giving 102 mg of 2,2-difluoro-N-(pyridin-2(1H)-ylidene)acetamide (yield, 14%).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09073866B2
Source datasetuspto-grants-2015_07
ORD IDord-333c9834e19d4034b30b193ace3b3854
Source noteuspto-grants-2015_07