Sodium Iodide → 1-Iodo-4-phenoxybut-2-yne

Participants

Reaction Steps

By following the esterification method of part B of this preparation, the preceding compound was converted into 4-phenoxybut-2-yn-1-ol methanesulfonate in almost quantitative yield. The foregoing crude mesylate was dissolved in 15 ml of acetone and treated with a solution of 5.55 g (0.037 mol) of sodium iodide and 1.049 g (0.0123 mol) of sodium bicarbonate in 30 ml of acetone. The reaction mixture was stirred for 1 hour at room temperature and then the solvent was removed under reduced pressure. The residue was diluted with water and extracted with methylene chloride; the organic extracts were dried and evaporated. The residue was purified by silica gel column chromatography using hexane-ethyl acetate (95:5) as eluant, to yield 1-iodo-4-phenoxybut-2-yne.

Provenance & Evidence