2,2,6,6-四甲基四氢-2H-吡喃-4-醇

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In a manner similar to the method described in example 32a, 2,2,6,6-Tetramethyl-tetrahydro-pyran-4-ol (5.5 g, 35 mmol) was reacted with methanesulfonyl chloride (6 g, 52 mmol, Aldrich) and triethylamine in dichloromethane to give methanesulfonic acid 2,2,6,6-tetramethyl-tetrahydro-pyran-4-yl ester as a yellow oil (Yield 8.5 g, 100%). The starting material 2,2,6,6-Tetramethyl-tetrahydro-pyran-4-ol was prepared according to the procedures described by Nemeroff, N. et al in J. Org. Chem. 1978, 43(2), 331-334 with slight modification.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In a manner similar to the method described in example 32a, 2,2,6,6-Tetramethyl-tetrahydro-pyran-4-ol (5.5 g, 35 mmol) was reacted with methanesulfonyl chloride (6 g, 52 mmol, Aldrich) and triethylamine in dichloromethane to give methanesulfonic acid 2,2,6,6-tetramethyl-tetrahydro-pyran-4-yl ester as a yellow oil (Yield 8.5 g, 100%). The starting material 2,2,6,6-Tetramethyl-tetrahydro-pyran-4-ol was prepared according to the procedures described by Nemeroff, N. et al in J. Org. Chem. 1978, 43(2), 331-334 with slight modification.

反应条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: In a manner similar to the method described in example 32a, 2,2,6,6-Tetramethyl-tetrahydro-pyran-4-ol (5.5 g, 35 mmol) was reacted with methanesulfonyl chloride (6 g, 52 mmol, Aldrich) and triethylamine in dichloromethane to give methanesulfonic acid 2,2,6,6-tetramethyl-tetrahydro-pyran-4-yl ester as a yellow oil (Yield 8.5 g, 100%). The starting material 2,2,6,6-Tetramethyl-tetrahydro-pyran-4-ol was prepared according to the procedures described by Nemeroff, N. et al in J. Org. Chem. 1978, 43(2), 331-334 with slight modification.