Sodium hydride → HCID 11021838, compound

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Reaction Steps

The oil attached to 63 wt % sodium hydride (1.14 g, 30.1 mmol, 1.00 eq.) was washed three times with hexane and removed. Subsequently, thereto were added dry DMF (30.0 mL) and 1,8-octanediol (4.40 g, 30.1 mmol, 1.00 eq.) at 0 degrees. The mixture was allowed to react for 5 minutes with ice-cooling, and then thereto was dropwise added a solution of PMBCl (4.08 mL, 30.1 mmol, 1.00 eq.) in dry DMF (20.0 mL) over 1 hour. The reaction mixture was allowed to react for further 1.5 hours and then poured into an aqueous ammonium chloride solution with ice-cooling, and the organic phase was extracted with ethyl acetate. The resulting organic phase was washed with 1 M hydrochloric acid, saturated sodium bicarbonate, and a saturated salt solution. The washed organic phase was dried over magnesium sulfate and then concentrated under reduced pressure. The resulting residue was purified by silica gel column chromatography (elution solvent: hexane/ethyl acetate=75:25) to obtain 8-((4-methoxybenzyl)oxy)octa-1-nol as shown below (4.66 g, 17.5 mmol, 58%).

Provenance & Evidence