4-(叔丁氧基)苯酚

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:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A solution of KOH (0.224 g, 4 mmol) in MeOH (3 mL) was added, over the course of 30 min, to a warmed (70° C.) mixture of 1,2-dibromoethane (3 g, 0.016 mol) and 4-(tert-butoxy)phenol (0.66 g, 0.004 mol). The mixture was stirred at 70° C. for 15 h before water and CHCl3 were added. The layers were separated, the organic layer washed with 10% aqueous NaOH and then dried (Na2SO4) and concentrated in vacuo to give 0.32 g (28%) of the sub-title compound. to a warmed were added The layers were separated the organic layer washed with 10% aqueous NaOH dried (Na2SO4) concentrated in vacuo

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Sec-butyllithium (53.2 mmoles, 41 ml of 1.3M in hexane) was added dropwise at -78° C. to 4-bromo-t-butoxybenzene (53.2 mmoles, 12.2 g) in 200 ml THF, stirred at -78° C. for 1 hour, and added slowly to a solution of triisopropylborate (58.5 mmoles, 11.0g) in 50 ml THF while maintaining the temperature below -60° C. The mixture was allowed to warm gradually to -20° C. Chilled acetic acid (80 mmoles,9.6 ml) was added. Hydrogen peroxide (58.5 mmoles, 5.9 ml of 30% diluted with 5 ml water) was added dropwise over 15 minutes while maintaining the temperature below 0° C. After stirring 10 minutes, the solution was washed with ammonium sulfate solution, dried, and concentrated. The residue was triturated with hexane and filtered to yield 4.2 g of 4-t-butoxyphenol. (MS). while maintaining the temperature below -60° C to warm gradually to -20° C while maintaining the temperature below 0° C After stirring 10 minutes the solution was washed with ammonium sulfate solution dried concentrated The residue was triturated with hexane filtered

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:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Sec-butyllithium (53.2 mmoles, 41 ml of 1.3M in hexane) was added dropwise at -78° C. to 4-bromo-t-butoxybenzene (53.2 mmoles, 12.2 g) in 200 ml THF, stirred at -78° C. for 1 hour, and added slowly to a solution of triisopropylborate (58.5 mmoles, 11.0g) in 50 ml THF while maintaining the temperature below -60° C. The mixture was allowed to warm gradually to -20° C. Chilled acetic acid (80 mmoles,9.6 ml) was added. Hydrogen peroxide (58.5 moles, 5.9 ml of 30% diluted with 5 ml water) was added dropwise over 15 minutes while maintaining the temperature below 0° C. After stirring 10 minutes, the solution was washed with ammonium sulfate solution, dried, and concentrated. The residue was triturated with hexane and filtered to yield 4.2 g of 4-t-butoxyphenol. (MS). while maintaining the temperature below -60° C to warm gradually to -20° C while maintaining the temperature below 0° C After stirring 10 minutes the solution was washed with ammonium sulfate solution dried concentrated The residue was triturated with hexane filtered

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

实验步骤: A solution of KOH (0.224 g, 4 mmol) in MeOH (3 mL) was added, over the course of 30 min, to a warmed (70° C.) mixture of 1,2-dibromoethane (3 g, 0.016 mol) and 4-(tert-butoxy)phenol (0.66 g, 0.004 mol). The mixture was stirred at 70° C. for 15 h before water and CHCl3 were added. The layers were separated, the organic layer washed with 10% aqueous NaOH and then dried (Na2SO4) and concentrated in vacuo to give 0.32 g (28%) of the sub-title compound. to a warmed were added The layers were separated the organic layer washed with 10% aqueous NaOH dried (Na2SO4) concentrated in vacuo

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Sec-butyllithium (53.2 mmoles, 41 ml of 1.3M in hexane) was added dropwise at -78° C. to 4-bromo-t-butoxybenzene (53.2 mmoles, 12.2 g) in 200 ml THF, stirred at -78° C. for 1 hour, and added slowly to a solution of triisopropylborate (58.5 mmoles, 11.0 g) in 50 ml THF while maintaining the temperature below -60° C. The mixture was allowed to warm gradually to -20° C. Chilled acetic acid (80 mmoles,9.6 ml) was added. Hydrogen peroxide (58.5 moles, 5.9 ml of 30% diluted with 5 ml water) was added dropwise over 15 minutes while maintaining the temperature below 0° C. After stirring 10 minutes, the solution was washed with ammonium sulfate solution, dried, and concentrated. The residue was triturated with hexane and filtered to yield 4.2 g of 4-t-butoxyphenol. (MS). while maintaining the temperature below -60° C to warm gradually to -20° C while maintaining the temperature below 0° C After stirring 10 minutes the solution was washed with ammonium sulfate solution dried concentrated The residue was triturated with hexane filtered

反应条件: temp:-78.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: Sec-butyllithium (53.2 mmoles, 41 ml of 1.3M in hexane) was added dropwise at -78° C. to 4-bromo-t-butoxybenzene (53.2 mmoles, 12.2 g) in 200 ml THF, stirred at -78° C. for 1 hour, and added slowly to a solution of triisopropylborate (58.5 mmoles, 11.0g) in 50 ml THF while maintaining the temperature below -60° C. The mixture was allowed to warm gradually to -20° C. Chilled acetic acid (80 mmoles,9.6 ml) was added. Hydrogen peroxide (58.5 mmoles, 5.9 ml of 30% diluted with 5 ml water) was added dropwise over 15 minutes while maintaining the temperature below 0° C. After stirring 10 minutes, the solution was washed with ammonium sulfate solution, dried, and concentrated. The residue was triturated with hexane and filtered to yield 4.2 g of 4-t-butoxyphenol. (MS). while maintaining the temperature below -60° C to warm gradually to -20° C while maintaining the temperature below 0° C After stirring 10 minutes the solution was washed with ammonium sulfate solution dried concentrated The residue was triturated with hexane filtered

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

实验步骤: 4-Tert-butoxyphenol (200 mg, 1.203 mmole) and PPh3 (410 mg, 1.564 mmole) were combined in toluene (5 mL). To this was added tetrahydro-2H-pyran-4-ol (0.149 mL, 1.564 mmole). DIAD (0.304 mL, 1.564 mmole) was added dropwise at RT. After stirring overnight the mixture was concentrated. Flash column chromatography (Biotage-SNAP-25 g SiO2, 10% EtOAc/hexanes) gave 4-(4-tert-butoxyphenoxy)tetrahydro-2H-pyran (257 mg, 85%) as a clear oil. 1H NMR (400 MHz, CDCl3): 06.90 (d, J=8.9 Hz, 2 H); 6.83-6.79 (m, 2 H); 4.39 (m, 1 H); 4.03-3.95 (m, 2 H); 3.56 (m, 2 H); 2.04-1.96 (m, 2 H); 1.83-1.72 (m, 2 H); 1.30 (s, 9 H). was concentrated

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

实验步骤: 4-Tert-butoxyphenol (200 mg, 1.203 mmole) and PPh3 (410 mg, 1.564 mmole) were combined in toluene (5 mL). To this was added tetrahydro-2H-pyran-4-ol (0.149 mL, 1.564 mmole). DIAD (0.304 mL, 1.564 mmole) was added dropwise at RT. After stirring overnight the mixture was concentrated. Flash column chromatography (Biotage-SNAP-25 g SiO2, 10% EtOAc/hexanes) gave 4-(4-tert-butoxyphenoxy)tetrahydro-2H-pyran (257 mg, 85%) as a clear oil. 1H NMR (400 MHz, CDCl3): 06.90 (d, J=8.9 Hz, 2 H); 6.83-6.79 (m, 2 H); 4.39 (m, 1 H); 4.03-3.95 (m, 2 H); 3.56 (m, 2 H); 2.04-1.96 (m, 2 H); 1.83-1.72 (m, 2 H); 1.30 (s, 9 H). was concentrated