3-[[tert-butyl(dimethyl)silyl]oxymethyl]phenol

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of Compound 3 in Et2O (120 ml) were added acetylsalicyloyl chloride (Compound 4) (5.9 g, 0.028 mol) and triethylamine (Et3N) (6.6 ml, 0.047 mol) in sequence at RT. The reaction mixture was stirred at RT under argon for 3 days. The reaction mixture was diluted with EtOAc (100 ml) and washed with aqueous saturated NaHCO3 (3×100 ml), brine (1×100 ml), and dried over anhydrous Na2SO4. The crude product obtained upon concentration was purified by column chromatography (elution solvent: 5% EtOAc in hexanes) to produce 9.4 g of Compound 5 in 100% yield. washed with aqueous saturated NaHCO3 (3×100 ml), brine (1×100 ml) dried over anhydrous Na2SO4 The crude product obtained upon concentration was purified by column chromatography (elution solvent: 5% EtOAc in hexanes)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 3.06 g of 3-({[tert-butyl(dimethyl)silyl]oxy}methyl)phenol and 1.50 g of triphosgene in 20 mL of CH2Cl2 cooled at −78° C. was added 1.2 mL of pyridine. The reaction mixture was warmed to rt. After 15–30 min, the white suspension was transferred to a solution containing 5.95 g of (2Z)-2-[4-(methylsulfonyl)phenyl]-3-phenylbut-2-ene-1,4-diol and 1.5 mL of pyridine in 20 mL of CH2Cl2 at rt. The reaction was stirred at rt for 15 min. The reaction was quenched with aqueous 1N HCl, extracted with EtOAc and washed with brine, dried over sodium sulfate, evaporated, and purified by flash chromatography (50–70% EtOAc/hexane) to afford 1.26 g of the title compound as a yellow oil. After 15–30 min The reaction was quenched with aqueous 1N HCl extracted with EtOAc washed with brine dried over sodium sulfate evaporated purified by flash chromatography (50–70% EtOAc/hexane)

反応条件: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of 79 g of 3-(hydroxymethyl)phenol in 300 mL of DMF cooled at 0° C. was added 50 g of imidazole followed by 101 g of tert-butyl(chloro)dimethylsilane. The reaction was warmed to rt and stirred overnight. The reaction was quenched with aqueous NH4Cl, extracted with EtOAc and washed with brine, dried over sodium sulfate, evaporated, and purified by flash chromatography (10–30% EtOAc/hexane) to afford 140 g of the title compound as a yellow oil. The reaction was quenched with aqueous NH4Cl extracted with EtOAc washed with brine dried over sodium sulfate evaporated purified by flash chromatography (10–30% EtOAc/hexane)

反応条件: temp:0.00; pressure:0.00; stir: