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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2188994Generated: October 29, 2026

Trifluoroacetic acid → HCID 24954620, compound

https://huagongshe.com/reaction/2188994

Reaction equation

Participants

RoleNameHCIDCharge
ReactantTrifluoroacetic acidHCID 6422—
Reactant4-AminobenzonitrileHCID 13396—
ReactantHCID 57848884HCID 57848884—
SolventEthyl AcetateHCID 8857—
ProductHCID 24954620HCID 2495462020%

Reaction Conditions

Temperature90 °C

Reaction Steps

To a solution of 2-Chloro-N-mesitylthieno[3,2-d]pyrimidin-4-amine (51.4 mg, 0.17 mmol), TFA (0.11 mL, 1.36 mmol) in TFE (1 mL) was added 4-aminobenzonitrile (80.2 mg, 0.68 mmol) in a sealed tube. The reaction was stirred at 90° C. for 15 h. Reaction mixture was diluted with ethyl acetate and washed with saturated NaHCO3 (3×10 mL). The combined organic layers were washed with brine, dried over Na2SO4, filtered and concentrated in vacuo. The crude product was purified by prep HPLC to afford the product as a white solid (13 mg, 20%): 1H NMR (DMSO, 300 MHz) δ 2.09 (s, 6H), 2.31 (s, 3H), 7.00 (s, 2H), 7.28 (d, J=5.7 Hz, 1H), 7.66 (d, J=8.4 Hz, 2H), 8.06-8.08 (m, 3H), 9.60 (bs, 1H), 9.72 (bs, 1H).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08324223B2
Source datasetuspto-grants-2012_12
ORD IDord-4d2631fbf65541449b92354c9bdef81c
Source noteuspto-grants-2012_12