Sulfuric Acid → HCID 66999313, compound

Participants

Reaction Steps

A mixture of 5-chloro-4-fluoro-3-(2-fluorophenylamino)-6-trimethylsilanylethynyl-pyridine-2-carboxylic acid methyl ester (1.00 equivalent), HgSO4 (1.00 equivalent), and conc. H2SO4 (2.00 equivalents) in acetone-water is refluxed with stirring for 3 hours. The reaction mixture is concentrated in vacuo, diluted with EtOAc, and washed with water and brine. The organic layer is dried over MgSO4, filtered, and concentrated in vauco to give the crude material that is purified by trituration or flash column chromatography to afford the desired product as necessary.

Provenance & Evidence