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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 69556Generated: October 29, 2026

HCID 17948959, compound → 4-(2,2-Difluoroethyl)pyrrolidin-2-one

https://huagongshe.com/reaction/69556

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHCID 17948959HCID 17948959—
CatalystPalladiumHCID 23938—
SolventMethanolHCID 887—
Product4-(2,2-Difluoroethyl)pyrrolidin-2-oneHCID 17948934100%

Reaction Steps

A solution of 4-(2,2-difluoroethenyl)pyrrolidin-2-one a1 (2.8 g, 18.77 mmol, 1 eq) and palladium on charcoal (10% Wt, 300 mg) in methanol (500 ml) is stirred overnight under an hydrogen atmosphere (40 psi) at room temperature. The reaction mixtured is filtered over celite and the solvent is removed under reduced pressure to afford 4-(2,2-difluoroethyl)pyrrolidin-2-one a11 which can be used in the next step without any further purification.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08822508B2
Source datasetuspto-grants-2014_09
ORD IDord-f18b7aa74a03440a9e73c6b6bacb5116
Source noteuspto-grants-2014_09