4,4'-Bis[2-hydroxy-2-(5-hexyl-2-thienyl)ethyl]-2,2'-b ipyridine → HCID 66704789, compound

Participants

Reaction Steps

4,4′-bis[2-hydroxy-2-(5-hexyl-2-thienyl)ethyl]-2,2′-b ipyridine (1.5 g) was dissolved in 110 g of toluene containing pyridindium p-toluenesulfonate (0.2 g) and reflux was performed for 4 hours using a Dean-Starc device. The solvent was distilled off under reduced pressure, and a residue was dissolved in methylene chloride and washed with a saturated solution of sodium bicarbonate. An organic layer was washed with anhydrous magnesium sulfate and distilled to obtain 1.2 g of a yellow-colored product.

Provenance & Evidence