4-bromo-3-methylphenol

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:

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:

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:

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

実験手順: Synthesised by analogous methods to Intermediate 2b, using 4-bromo-3-methyl-phenol at Stage 6 of Scheme 2. m/z 504 [M+H]+.

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

実験手順: To a solution of 4-bromo-3-methyl phenol (0.300 g, 1 equiv) in DMF (5 mL) are added 4-methylester phenyl boronic acid (0.58 g, 2 equiv), dppf (0.27 g, 0.3 equiv), palladium acetate (0.036 g, 0.1 equiv), and cesium carbonate (1.04 g, 2 equiv). The reaction mixture is heated to 75° C. for 1 h. The reaction is cooled to room temperature and is diluted with water. The resulting solution is extracted with ethyl acetate. The combined organic layers are combined and washed with brine, dried over sodium sulfate, filtered, and concentrated under reduced pressure. The crude residue is purified via flash chromatography eluting with 3% ethyl acetate in toluene to give the desired product (0.224 g, 58%). ES/MS m/e 241.3 (M−1). The reaction is cooled to room temperature The resulting solution is extracted with ethyl acetate washed with brine dried over sodium sulfate filtered concentrated under reduced pressure The crude residue is purified via flash chromatography eluting with 3% ethyl acetate in toluene

反応条件: temp:0.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

実験手順: To a solution of [3-(2,6-dichloro-phenyl)-5-isopropyl-3H-[1,2,3]triazol-4-yl]-methanol (300 mg, 1.05 mmol) in toluene (4 mL) are added 4-bromo-3-methyl-phenol (196 mg, 1.05 mmol) and tri-n-butylphosphine (394 μL, 1.58 mmol). The reaction mixture is cooled to 0° C. To the reaction mixture is added 1,1′-(Azocarbonyl)-dipiperidine (399 mg, 1.58 mmol) and the reaction mixture is warmed to room temperature. After 6 h, the reaction mixture is concentrated and the residue is chromatographed eluting with 10% to 20% EtOAc/hexanes to yield the title compound (324 mg, 68%). LC-ES/MS m/e 455.7 (M+1). the reaction mixture is warmed to room temperature the reaction mixture is concentrated the residue is chromatographed eluting with 10% to 20% EtOAc/hexanes