2-chloro-4-(hydroxymethyl)-5-methoxyphenol

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of 2-chloro-4-(hydroxymethyl)-5-methoxyphenol (intermediate 54; 0.5 g, 2.61 mmol), 1,3-dibromopropane (1.61 ml; 15.71 mmol) and potassium carbonate (737 mg; 5.23 mmol) in 12 ml acetone was heated to 75° C. in a sealed vessel and stirred for 16 hr. The solids were filtered and washed with acetone and the combined filtrates were concentrated to dryness and purified by preparative reversed-phase HPLC (hexane/EtOAc from 0 to 40%), affording the title compound (80%) as a light yellow oil. The solids were filtered washed with acetone the combined filtrates were concentrated to dryness purified by preparative reversed-phase HPLC (hexane/EtOAc from 0 to 40%)

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of 2-chloro-4-(hydroxymethyl)-5-methoxyphenol (intermediate 54; 0.5 g, 2.61 mmol), 1,3-dibromopropane (1.61 ml; 15.71 mmol) and potassium carbonate (737 mg; 5.23 mmol) in 12 ml acetone was heated to 75° C. in a sealed vessel and stirred for 16 hr. The solids were filtered and washed with acetone and the combined filtrates were concentrated to dryness and purified by preparative reversed-phase HPLC (hexane/EtOAc from 0 to 40%), affording the title compound (80%) as a light yellow oil. The solids were filtered washed with acetone the combined filtrates were concentrated to dryness purified by preparative reversed-phase HPLC (hexane/EtOAc from 0 to 40%)

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

実験手順: A solution of methyl 5-chloro-4-hydroxy-2-methoxybenzoate (intermediate 53; 204 mg; 0.94 mmol) in 4.6 ml of anhydrous THF was stirred with external ice/water bath cooling. A solution of 1M LiAlH4 in THF was dropped in (1.9 ml; 1.9 mmol). After 5 minutes the external bath was removed and the stirring prosecuted for 3 additional hours. With external cooling 0.072 ml of water were added followed by 0.072 ml of 4N NaOH solution and 0.144 additional ml of water. After filtration the cake was thoroughly washed with THF and the filtrates were concentrated giving the title compound in 34% yield. cooling After 5 minutes the external bath was removed With external cooling 0.072 ml of water were added After filtration the cake was thoroughly washed with THF the filtrates were concentrated

反応条件: temp:75.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: A mixture of 2-chloro-4-(hydroxymethyl)-5-methoxyphenol (intermediate 54; 0.5 g, 2.61 mmol), 1,3-dibromopropane (1.61 ml; 15.71 mmol) and potassium carbonate (737 mg; 5.23 mmol) in 12 ml acetone was heated to 75° C. in a sealed vessel and stirred for 16 hr. The solids were filtered and washed with acetone and the combined filtrates were concentrated to dryness and purified by preparative reversed-phase HPLC (hexane/EtOAc from 0 to 40%), affording the title compound (80%) as a light yellow oil. The solids were filtered washed with acetone the combined filtrates were concentrated to dryness purified by preparative reversed-phase HPLC (hexane/EtOAc from 0 to 40%)

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

実験手順: A solution of methyl 5-chloro-4-hydroxy-2-methoxybenzoate (intermediate 53; 204 mg; 0.94 mmol) in 4.6 ml of anhydrous THF was stirred with external ice/water bath cooling. A solution of 1M LiAlH4 in THF was dropped in (1.9 ml; 1.9 mmol). After 5 minutes the external bath was removed and the stirring prosecuted for 3 additional hours. With external cooling 0.072 ml of water were added followed by 0.072 ml of 4N NaOH solution and 0.144 additional ml of water. After filtration the cake was thoroughly washed with THF and the filtrates were concentrated giving the title compound in 34% yield. cooling After 5 minutes the external bath was removed With external cooling 0.072 ml of water were added After filtration the cake was thoroughly washed with THF the filtrates were concentrated