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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2054741Generated: October 30, 2026

Trifluoroacetic acid → Trifluoroacetic acid

https://huagongshe.com/reaction/2054741

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactanttert-butyl 4-(2-chloro-5-fluorophenyl)-2-phenyl-2,5-dihydro-1H-pyrrole-1-carboxylateHCID 59656605—
SolventDichloromethaneHCID 6344—
ProductTrifluoroacetic acidHCID 6422—
Product4-(2-chloro-5-fluorophenyl)-2-phenyl-2,5-dihydro-1H-pyrroleHCID 59656611—

Reaction Steps

Trifluoroacetic acid (10 mL) was added to a solution of tert-butyl 4-(2-chloro-5-fluorophenyl)-2-phenyl-2,5-dihydro-1H-pyrrole-1-carboxylate (14, 320 mg, 0.856 mmol, 1 equiv) in dichloromethane (40 mL) at 23° C., and the resulting mixture was stirred for 30 min, then concentrated to give 4-(2-chloro-5-fluorophenyl)-2-phenyl-2,5-dihydro-1H-pyrrole (1-5) as a TFA salt (brown oil). LRMS m/z (M+H) 274.1 found, 274.1 required.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07329762B2
Source datasetuspto-grants-2008_02
ORD IDord-914e16f5bd18423e98934255c8858a02
Source noteuspto-grants-2008_02