反应详情

Add dropwise bicyclo[4.1.0]heptan-2-one (43.3 g, 0.393 mol) in dry THF (50 mL) to a solution of LDA (237 mL, 0.472 mol) in THF (500 mL). Stir the reaction mixture for 30 min and then add dropwise TMSCl (64.2 g, 0.59 mol) to the reaction mixture. Stir the resultant solution for additional 1 hour. Pour the mixture into ice water (92 mL) and extract the aqueous mixture with EtOAc (100 mL×3). The combined organic layers are washed with brine, dried over MgSO4, filtered and concentrated in vacuo to afford crude (bicyclo[4.1.0]hept-2-en-2-yloxy)-trimethyl-silane (68.0 g, 95.0%) as yellowish oil, MS (m/z): 181 (M−1).

1. extractionextract the aqueous mixture with EtOAc (100 mL×3)
2. washThe combined organic layers are washed with brine
3. dry with materialdried over MgSO4
4. filtrationfiltered
5. concentrationconcentrated in vacuo