N-(2-hydroxyphenyl)acetamide

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

実験手順: A mixture of N-(2-hydroxyphenyl)acetamide (1.51 g, 10 mmol), (2S)-oxiran-2-ylmethyl-3-nitrobenzenesulfonate (2.59 g, 10 mmol) and cesium carbonate (Cs2CO3) (3.9 g, 12 mmol) in dimethylformamide (DMF) (30 mL) was stirred at room temperature overnight. The reaction mixture was partitioned between ethyl acetate and H2O. The organic layer was dried over Na2SO4, filtered, concentrated and the residue was purified by silica gel flash chromatography to give the subtitled compound (1.34 g). The reaction mixture was partitioned between ethyl acetate and H2O The organic layer was dried over Na2SO4 filtered concentrated the residue was purified by silica gel flash chromatography

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

実験手順: A mixture of N-(2-hydroxyphenyl)acetamide (1.51 g, 10 mmol), (2S)-oxiran-2-ylmethyl-3-nitrobenzenesulfonate (2.59 g, 10 mmol) and cesium carbonate (Cs2CO3) (3.9 g, 12 mmol) in dimethylformamide (DMF) (30 mL) was stirred at room temperature overnight. The reaction mixture was partitioned between ethyl acetate and H2O. The organic layer was dried over Na2SO4, filtered, concentrated and the residue was purified by silica gel flash chromatography to give the subtitled compound (1.34 g). The reaction mixture was partitioned between ethyl acetate and H2O The organic layer was dried over Na2SO4 filtered concentrated the residue was purified by silica gel flash chromatography

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

実験手順: To 2-acetamidophenol (90.5 mg, 0.598 mmol) and cesium carbonate(234 mg, 0.718 mmol) was added [(2R)-2-methyloxiranyl]methyl 4-methylbenzene-sulfonate (145 mg, 0.598 mmol) dissolved in DMF (1 ml). The mixture was stirred at room temperature for four hours and then partitioned between ethyl-acetate and water. After extraction the combined organic phases were dried and concentrated in vacuo. The residue was purified on silica (Heptane/EtOAc 3:1-2:1) to give 63 mg (48%) of the title compound. partitioned between ethyl-acetate and water After extraction the combined organic phases were dried concentrated in vacuo The residue was purified on silica (Heptane/EtOAc 3:1-2:1)

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

実験手順: To 2-acetamidophenol (90.5 mg, 0.598 mmol) and cesium carbonate(234 mg, 0.718 mmol) was added [(2R)-2-methyloxiranyl]methyl 4-methylbenzene-sulfonate (145 mg, 0.598 mmol) dissolved in DMF (1 ml). The mixture was stirred at room temperature for four hours and then partitioned between ethyl-acetate and water. After extraction the combined organic phases were dried and concentrated in vacuo. The residue was purified on silica (Heptane/EtOAc 3:1-2:1) to give 63 mg (48%) of the title compound. partitioned between ethyl-acetate and water After extraction the combined organic phases were dried concentrated in vacuo The residue was purified on silica (Heptane/EtOAc 3:1-2:1)

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

実験手順: By following the procedure of Example 1, part A, but replacing 4-acetaminophenol with 2-acetaminophenol, and 4-chloromethylpyridine hydrocholoride, with 2-chloromethylpyridine hydrochloride, the title compound is obtained.

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

実験手順: The compound (557 mg, 40%) was prepared from 3-chloro-1-butene (747 ml, 7.42 mmol) and 2-acetamidophenol (1.02 g, 6.75 mmol) analogously to that described in Example 8 i).

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

実験手順: A mixture of 1-bromo-2-butine (1.39 g (10.4 mmol), 2-acetamidophenol (1.58 mg, 10.4 mmol), anhydrous potassium carbonate (1.44 g, 10.4 mmol) and sodium iodide (30 mg) in butanone (50 ml) was heated over night to reflux. After that the reaction mixture was filtrated, the filtrate was evaporated and the resulting residue was taken up by ethyl acetate. The obtained solution was washed with 5-proz. sodium hydroxide, brine and water, dried over sodium sulfate and evaporated. The crude was recrystallized out of heptane/MTB (1:1) yielding in 1.57 g (74%) of a light brown needles. was heated over night to reflux After that the reaction mixture was filtrated the filtrate was evaporated The obtained solution was washed with 5-proz sodium hydroxide, brine and water, dried over sodium sulfate evaporated The crude was recrystallized out of heptane/MTB (1:1)

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

実験手順: A heterogenic mixture of commercially available 1-chloro-2-butene (Aldrich, predominantly trans) (453 mg, 0.49 mL, 5.00 mmol), 2-acetamidophenol (756 mg, 5.00 mmol) and potassium carbonate (691 mg, 5.00 mmol) in aceton (10 ml) was heated to reflux over night. After evaporation of the solvent the residue was taken up by ethylacetate and water. Washing of the organic phase with water, 5-proz. sodium hyroxide and brine and evaporation of the solvent afforded the crude which was purified by flash chromatography on silica gel (heptane/EtOAc=3:2). Yield: 732 mg (71%) of a brownish yellow solid. Trans:cis=81:19 (ratio determined by 1H-NMR; 400 MHz, CDCl3): was heated to reflux over night After evaporation of the solvent the residue Washing of the organic phase with water sodium hyroxide and brine and evaporation of the solvent afforded the crude which was purified by flash chromatography on silica gel (heptane/EtOAc=3:2)

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

実験手順: The compound (1.74 g, 85%) was prepared from 3-chloro-2-methylpropene (1.09 g, 11.9 mmol) and 2-acetamidophenol (1.50 g, 9.92 mmol) analogously to that described in Example 8(i).

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

実験手順: The compound (1.74 g, 85%) was prepared from 3-chloro-2-methylpropene (1.09 g, 11.9 mmol) and 2-acetamidophenol (1.50 g, 9.92 mmol) analogously to that described in Example 8(i).

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

実験手順: 2-Cyclohexenol (491 mg, 0.49 ml, 5.00 mmol, 1.0 equiv.), 2-acetamidophenol (756 mg, 5.00 mmol, 1.0 equiv.) and triphenylphosphine (1.44 g, 5.50 mmol, 1.1 equiv.) were dissolved in THF (10 ml) and kept at ambient temperature by a water bath. After dropwise addition of diethyl azodicarbonic acid (871 mg, 0.78 ml, 5.00 mmol, 1.0 equiv.), dissolved in THF (3 ml), the reaction mixture was stirred over night. Extractive work-up and flash chromatography on silica gel (heptane/tertbutyl(methyl)ether=1:1) afforded 224 mg (19%) the title compound as a yellow oil. kept at ambient temperature by a water bath

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

実験手順: To a suspension of sodium hydride (60 proc. in paraffin; 297 mg, 7.43 mmol, 1.1 equiv.) in DMF (3 ml) a solution of 2-acetamido-phenol (1.02 g, 6.75 mmol, 1.0 equiv.) in DMF (12 ml) was added dropwise at 0° C. After 30 minutes chlorocyclopent-2-ene (R. Moffett, Organzic Synthesis, Wiley: New York 1963, Collect. Vol. IV, p.238-241) (762 mg, 0.76 ml, 7.43 mmol, 1.1 equiv.) was added by a syringe and stirring was continued overnight. Aqueous work-up followed by flash chromatography on silica gel (heptane/ethyl acetate, 2:1 continued to 1:1) afforded 992 mg (68%) of the subtitle compound as a dark, yellow oil. was added dropwise at 0° C