2,2-dimethylthian-4-one

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2,2-Dimethyltetrahydro-4H-thiopyran-4-one (0.675 g, 4.68 mmol) was placed in a dried flask fitted up with an addition funnel, a septum and an argon inlet, and dissolved in dry DCM (15 mL), cooled to 0° C., stirred, and then trimethylsilyl trifluoromethanesulfonate (1.692 mL, 9.36 mmol) was added dropwise through the addition funnel over 10 minutes. DCM (5 mL) was used to wash the addition funnel walls. To this mixture was added dropwise ethyl 5-bromo-1H-indole-7-carboxylate (1.341 g, 5 mmol) in DCM (15 mL) over 2 hours. Then triethylsilane (2.98 mL, 18.73 mmol) was added in one portion. The mixture was stirred 2 h at 0° C., and left stirring at 23° C. overnight. The reaction was quenched with a saturated aqueous solution of sodium bicarbonate, and the resulting biphasic mixture extracted with DCM to give 2.115 g of the title compound. fitted up with an addition funnel to wash the addition funnel walls The mixture was stirred 2 h at 0° C. left stirring at 23° C. overnight The reaction was quenched with a saturated aqueous solution of sodium bicarbonate the resulting biphasic mixture extracted with DCM

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

实验步骤: To a solution of 2,2-Dimethyl-tetrahydro-thiopyran-4-one (7.9 g, 55.1 mmol) in DCM (100 mL) was added TMSOTf (10 mL, 55.1 mmol) and 5-Bromo-1H-indole-7-carboxylic acid methyl ester (7.0 g, 27.6 mmol) at 0° C. After 2 hours, Et3SiH (15 mL, 110 mmol) was added at 0° C., then the mixture was stirred for 18 hours. The reaction mixture was quenched with sat. Sodium bicarbonate solution, extracted with DCM (3×100 mL). The combined organic layer was dried over MgSO4 and concentrated under vacuum. The residue was purified by column chromatography on silica gel (PE:EA=50:1 to 30:1) to give the title compound as a light yellow solid (5.5 g, 52%). The reaction mixture was quenched with sat. Sodium bicarbonate solution extracted with DCM (3×100 mL) The combined organic layer was dried over MgSO4 concentrated under vacuum The residue was purified by column chromatography on silica gel (PE:EA=50:1 to 30:1)

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

实验步骤: The mixture of 6,6-Dimethyl-4-oxo-tetrahydro-thiopyran-3-carboxylic acid methyl ester and 2,2-Dimethyl-4-oxo-tetrahydro-thiopyran-3-carboxylic acid methyl ester (42 g) in 10% aq. H2SO4 solution (1000 mL) was heated at reflux for 70 h. Then the mixture was extracted with Et2O (3×300 mL), the combined organic layer was washed with sat. NaHCO3 (120 mL) and brine (120 mL), dried over Na2SO4 and evaporated under vacuum to give the title compound as a white solid (5.3 g, 17.7%, two steps). was heated at reflux for 70 h Then the mixture was extracted with Et2O (3×300 mL) the combined organic layer was washed with sat. NaHCO3 (120 mL) and brine (120 mL) dried over Na2SO4 evaporated under vacuum

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.00; pressure:0.00; stir:

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2,2-Dimethyltetrahydro-4H-thiopyran-4-one (0.675 g, 4.68 mmol) was placed in a dried flask fitted up with an addition funnel, a septum and an argon inlet, and dissolved in dry DCM (15 mL), cooled to 0° C., stirred, and then trimethylsilyl trifluoromethanesulfonate (1.692 mL, 9.36 mmol) was added dropwise through the addition funnel over 10 minutes. DCM (5 mL) was used to wash the addition funnel walls. To this mixture was added dropwise ethyl 5-bromo-1H-indole-7-carboxylate (1.341 g, 5 mmol) in DCM (15 mL) over 2 hours. Then triethylsilane (2.98 mL, 18.73 mmol) was added in one portion. The mixture was stirred 2 h at 0° C., and left stirring at 23° C. overnight. The reaction was quenched with a saturated aqueous solution of sodium bicarbonate, and the resulting biphasic mixture extracted with DCM to give 2.115 g of the title compound. fitted up with an addition funnel to wash the addition funnel walls The mixture was stirred 2 h at 0° C. left stirring at 23° C. overnight The reaction was quenched with a saturated aqueous solution of sodium bicarbonate the resulting biphasic mixture extracted with DCM

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2,2-Dimethyltetrahydro-4H-thiopyran-4-one (0.675 g, 4.68 mmol) was placed in a dried flask fitted up with an addition funnel, a septum and an argon inlet, and dissolved in dry DCM (15 mL), cooled to 0° C., stirred, and then trimethylsilyl trifluoromethanesulfonate (1.692 mL, 9.36 mmol) was added dropwise through the addition funnel over 10 minutes. DCM (5 mL) was used to wash the addition funnel walls. To this mixture was added dropwise ethyl 5-bromo-1H-indole-7-carboxylate (1.341 g, 5 mmol) in DCM (15 mL) over 2 hours. Then triethylsilane (2.98 mL, 18.73 mmol) was added in one portion. The mixture was stirred 2 h at 0° C., and left stirring at 23° C. overnight. The reaction was quenched with a saturated aqueous solution of sodium bicarbonate, and the resulting biphasic mixture extracted with DCM to give 2.115 g of the title compound. fitted up with an addition funnel to wash the addition funnel walls The mixture was stirred 2 h at 0° C. left stirring at 23° C. overnight The reaction was quenched with a saturated aqueous solution of sodium bicarbonate the resulting biphasic mixture extracted with DCM

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

实验步骤: To a solution of 2,2-Dimethyl-tetrahydro-thiopyran-4-one (7.9 g, 55.1 mmol) in DCM (100 mL) was added TMSOTf (10 mL, 55.1 mmol) and 5-Bromo-1H-indole-7-carboxylic acid methyl ester (7.0 g, 27.6 mmol) at 0° C. After 2 hours, Et3SiH (15 mL, 110 mmol) was added at 0° C., then the mixture was stirred for 18 hours. The reaction mixture was quenched with sat. Sodium bicarbonate solution, extracted with DCM (3×100 mL). The combined organic layer was dried over MgSO4 and concentrated under vacuum. The residue was purified by column chromatography on silica gel (PE:EA=50:1 to 30:1) to give the title compound as a light yellow solid (5.5 g, 52%). The reaction mixture was quenched with sat. Sodium bicarbonate solution extracted with DCM (3×100 mL) The combined organic layer was dried over MgSO4 concentrated under vacuum The residue was purified by column chromatography on silica gel (PE:EA=50:1 to 30:1)

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

实验步骤: The mixture of 6,6-Dimethyl-4-oxo-tetrahydro-thiopyran-3-carboxylic acid methyl ester and 2,2-Dimethyl-4-oxo-tetrahydro-thiopyran-3-carboxylic acid methyl ester (42 g) in 10% aq. H2SO4 solution (1000 mL) was heated at reflux for 70 h. Then the mixture was extracted with Et2O (3×300 mL), the combined organic layer was washed with sat. NaHCO3 (120 mL) and brine (120 mL), dried over Na2SO4 and evaporated under vacuum to give the title compound as a white solid (5.3 g, 17.7%, two steps). was heated at reflux for 70 h Then the mixture was extracted with Et2O (3×300 mL) the combined organic layer was washed with sat. NaHCO3 (120 mL) and brine (120 mL) dried over Na2SO4 evaporated under vacuum

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

实验步骤: The mixture of 6,6-Dimethyl-4-oxo-tetrahydro-thiopyran-3-carboxylic acid methyl ester and 2,2-Dimethyl-4-oxo-tetrahydro-thiopyran-3-carboxylic acid methyl ester (42 g) in 10% aq. H2SO4 solution (1000 mL) was heated at reflux for 70 h. Then the mixture was extracted with Et2O (3×300 mL), the combined organic layer was washed with sat. NaHCO3 (120 mL) and brine (120 mL), dried over Na2SO4 and evaporated under vacuum to give the title compound as a white solid (5.3 g, 17.7%, two steps). was heated at reflux for 70 h Then the mixture was extracted with Et2O (3×300 mL) the combined organic layer was washed with sat. NaHCO3 (120 mL) and brine (120 mL) dried over Na2SO4 evaporated under vacuum

反应条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: 2,2-Dimethyltetrahydro-4H-thiopyran-4-one (0.675 g, 4.68 mmol) was placed in a dried flask fitted up with an addition funnel, a septum and an argon inlet, and dissolved in dry DCM (15 mL), cooled to 0° C., stirred, and then trimethylsilyl trifluoromethanesulfonate (1.692 mL, 9.36 mmol) was added dropwise through the addition funnel over 10 minutes. DCM (5 mL) was used to wash the addition funnel walls. To this mixture was added dropwise ethyl 5-bromo-1H-indole-7-carboxylate (1.341 g, 5 mmol) in DCM (15 mL) over 2 hours. Then triethylsilane (2.98 mL, 18.73 mmol) was added in one portion. The mixture was stirred 2 h at 0° C., and left stirring at 23° C. overnight. The reaction was quenched with a saturated aqueous solution of sodium bicarbonate, and the resulting biphasic mixture extracted with DCM to give 2.115 g of the title compound. fitted up with an addition funnel to wash the addition funnel walls The mixture was stirred 2 h at 0° C. left stirring at 23° C. overnight The reaction was quenched with a saturated aqueous solution of sodium bicarbonate the resulting biphasic mixture extracted with DCM