Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 520750Generated: November 4, 2026

Difluoroacetic acid → HCID 178522122, compound

https://huagongshe.com/reaction/520750

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 numberUS09328068B2
Source datasetuspto-grants-2016_05
ORD IDord-eafc5839b8e04b86b6c519cd53917a29
Source noteuspto-grants-2016_05