反应详情

To a slurry of sodium hydride (7.86 g, 197 mmol) in DMF (100 mL) was added methyl iodide (12.29 mL, 197 mmol) followed by a solution of hept-6-yn-1-ol (24.5 g, 197 mmol) in DMF (50 mL). Following the addition the reaction was monitored by TLC. After 2 h additional methyl iodide (6 mL, 50 mmol) was added followed by sodium hydride (1 g, 25 mmol) portions. At 1 h intervals additional sodium hydride (1 g, 25 mmol) portions was added until no alcohol remained as indicated by TLC. Et2O (50 mL) and water (100 mL) was added to the reaction mixture and the layers were separated. The organic layer was washed with brine, dried using Na2SO4, filtered and distilled (145-155° C.) to provide 7-methoxyhept-1-yne (18 g, 121 mmol, 61.7% yield) as a colorless oil.

1. additionthe addition the reaction
2. customthe layers were separated
3. washThe organic layer was washed with brine
4. customdried
5. filtrationfiltered
6. distillationdistilled (145-155° C.)