Back
HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 56796Generated: October 30, 2026

Trifluoroacetic acid → 2-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoic acid

https://huagongshe.com/reaction/56796

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoateHCID 117622830—
SolventDichloromethaneHCID 6344—
Product2-[4-(5-Chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoic acidHCID 117622584—

Reaction Steps

114 mg (260 μmol) of tert-butyl 2-[4-(5-chloro-2-cyanophenyl)-5-methoxy-2-oxopyridin-1(2H)-yl]-4,4-difluorobutanoate (racemate) in 8 ml of dichloromethane and 400 μl (5.20 mmol) of TFA were reacted according to General Method 6A. Yield: 99 mg (91% of theory)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09434690B2
Source datasetuspto-grants-2016_09
ORD IDord-066b88a8cb50416aba06dc9fb74d461b
Source noteuspto-grants-2016_09