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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1820983Generated: November 1, 2026

Bromine → HCID 178517592, compound

https://huagongshe.com/reaction/1820983

Reaction equation

Participants

RoleNameHCIDCharge
ReactantBromineHCID 24408—
Reactant2(1H)-Pyridinone, 3-(trifluoromethyl)-HCID 3678411—
SolventMethanolHCID 887—
ProductHCID 178517592HCID 178517592—

Reaction Steps

A solution of 1.95 g (12 mmol) of 2-hydroxy-3-trifluoromethyl-pyridine and 0.8 mL of bromine in 10 mL of MeOH was stirred at rt for 20 h. The solution was concentrated and the residue partitioned between 100 mL of EtOAc and 25 mL of H2O. The layers were separated and the organic layer was washed with 25 mL of 5% Na2S2O3, 25 mL of sat'd NaCl, dried and concentrated. Chromatography on a Biotage 40 M cartridge using 3:1 hexanes/acetone as the eluant afforded 1.84 g of the title compound: ESI-MS (m/z) 242.1, 244.1; HPLC A: 2.22 min.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07605171B2
Source datasetuspto-grants-2009_10
ORD IDord-a1198ba4a9bd40d5888d36d39826f2f7
Source noteuspto-grants-2009_10