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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 965565Generated: October 30, 2026

Trifluoroacetic acid → 4-[5-Chloro-3-(2-chlorophenyl)-2,3-dihydro-3-dimethylamino-2-oxoindol-1-yl]methylbenzoic acid

https://huagongshe.com/reaction/965565

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-Butyl 4-[5-chloro-3-(2-chlorophenyl)-2,3-dihydro-3-dimethylamino-2-oxoindol-1-yl]methylbenzoateHCID 19076573—
SolventDichloromethaneHCID 6344—
Product4-[5-Chloro-3-(2-chlorophenyl)-2,3-dihydro-3-dimethylamino-2-oxoindol-1-yl]methylbenzoic acidHCID 19076426—

Reaction Steps

A solution of 0.615 g of the compound obtained in EXAMPLE 93 in 2 ml of DCM is cooled to 0° C. and 2 ml of TFA are added. The mixture is stirred for 30 minutes and evaporated under vacuum and the residue is then taken up with DCM and evaporated under vacuum again to give the expected product, which is used as such in the next step.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05773612
Source datasetuspto-grants-1998_06
ORD IDord-0c776678f7e54d0681f774daae7b3d65
Source noteuspto-grants-1998_06