反应详情

温度

22 °C

Imidazole (58.3 g, 857 mmol) and t-butydimethylchlorosilane (64.6 g, 429 mmol) were added to a stirred solution of 2,2-dimethylpent-4-yn-1-ol (43.7 g, 390 mmol) in DMF (195 mL), then the solution was stirred at 22° C., under N2, for 20 hours. The reaction solution was extracted with ether (3×300 mL), washed with water (100 mL), brine (75 mL), dried over Na2SO4, filtered and concentrated. The residue was chromatographed on silica gel 60 (330 g), eluting with hexane, to give the title product. 1H NMR (400 MHz, CDCl3) δ 3.29 (s, 2H); 2.10 (d, J=2.8 Hz, 2H); 1.91 (t, J=2.6 Hz, 1H); 0.90 (s, 6H); 0.86 (s, 9H); 0.00 (s, 6H) ppm.

1. extractionThe reaction solution was extracted with ether (3×300 mL)
2. washwashed with water (100 mL), brine (75 mL)
3. dry with materialdried over Na2SO4
4. filtrationfiltered
5. concentrationconcentrated
6. customThe residue was chromatographed on silica gel 60 (330 g)
7. washeluting with hexane