反应详情

To a suspension of sodium hydride (60% in oil, 740 mg, 18.5 mmol) in THF (50 mL) at 0° C. was added tetraethylene glycol (4.0 g, 20.6 mmol). After stirring for 15 minutes, propargyl bromide (80% in toluene, 2.00 mL, 18.0 mmol) was added slowly. The reaction was allowed to warm to RT and stirred 16 hours. Solids were removed by filtration and rinsed with MTBE (3×20 mL). The combined filtrates were concentrated and purified by flash chromatography on silica gel (EtOAc) to give 3,6,9,12-tetraoxapentadec-14-yn-1-ol (2.14 g).

1. stirringstirred 16 hours
2. customSolids were removed by filtration
3. washrinsed with MTBE (3×20 mL)
4. concentrationThe combined filtrates were concentrated
5. custompurified by flash chromatography on silica gel (EtOAc)