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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 921859Generated: October 30, 2026

Trifluoroacetic acid → Trifluoroacetic acid

https://huagongshe.com/reaction/921859

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
ReactantTert-butyl (2-chloro-5-cyano-3-(3-(4-methylpiperazin-1-yl)propyl)phenyl)carbamateHCID 131734943—
SolventDichloromethaneHCID 6344—
ProductTrifluoroacetic acidHCID 6422617.4%
Product3-Amino-4-chloro-5-(3-(4-methylpiperazin-1-yl)propyl)benzonitrileHCID 89923048—

Reaction Steps

Tert-butyl (2-chloro-5-cyano-3-(3-(4-methylpiperazin-1-yl)propyl)phenyl)carbamate (49 mg, 0.125 mmol) was taken up in DCM (0.8 mL) and TFA (0.192 mL, 2.494 mmol) was added. The reaction was stirred at room temperature for 1 h. The solvent was removed in vacuo and the material azeotroped 2× with toluene. The material was dried under vacuum overnight. 3-amino-4-chloro-5-(3-(4-methylpiperazin-1-yl)propyl)benzonitrile, TFA (88 mg) was obtained as an off-white solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09273057B2
Source datasetuspto-grants-2016_03
ORD IDord-b4623de32d8a4eea8a9a3c48272356df
Source noteuspto-grants-2016_03