Toluene → HCID 178517696, compound

Participants

Reaction Steps

A mixture 2,4-dihydroxypyridine and 3-trifluoromethylphenylhydrazine (2.6 equiv) in diphenyl ether was heated at reflux with a Dean Stark apparatus for 2 h as described by C. H. Nguyen in Tetrahedron 1987, 43, 527. The reaction was cooled to room temperature followed by the addition of toluene. The solid was collected and washed with toluene. The solid was then dissolved in EtOAc and purified by flash chromatography (EtOAc to 5% MeOH in EtOAc) to provide the title compound.

Provenance & Evidence