反应详情

TMSCl (8.0 mL, 63.32 mmol) was added dropwise to a solution of 1,4-anhydroerythritol (3.0 g, 28.81 mmol), triethylamine (9.2 mL, 66.0 mmol) and DMAP (few crystals) in dichloromethane (200 mL) at 0° C. The reaction was allowed to slowly warm to room temperature over 1 h and then stirred for an additional 3 h. The solid was filtered and the filtrate concentrated to give a solid. The solid was then filtered through a short silica gel column eluting with 33% hexanes in ethyl ether. Removal of solvents under reduced pressure provided 3,4-bis-trimethylsilanyloxy-tetrahydro-furan (7.7 g, ˜100%) as a colorless liquid.

1. filtrationThe solid was filtered
2. concentrationthe filtrate concentrated
3. customto give a solid
4. filtrationThe solid was then filtered through a short silica gel column
5. washeluting with 33% hexanes in ethyl ether
6. customRemoval of solvents under reduced pressure