N-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)benzenamine

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 1000 mL round bottom flask containing N-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (18.88 g, 81 mmol) was charged with 4-bromo-1H-pyrrolo[2,3-b]pyridine (11.40 g, 57.9 mmol), potassium phosphate (36.8 g, 174 mmol) and phenylallylchloro[1,3-bis(diisopropylphenyl)-2-imidazol-2-ylidene]palladium (II) (1.873 g, 2.89 mmol) under argon. To this was added a mixture of dioxane (400 mL) and water (100 mL) that had been degassed with argon for 30 minutes. The mixture was purged with nitrogen again, and heated at 80° C. overnight under nitrogen. The reaction mixture was cooled to ambient temperature and partitioned between ethyl acetate (750 mL) and 50% brine (1000 mL). The organic layers were dried over sodium sulfate, filtered and concentrated. The crude residue was dissolved in a minimum of methylene chloride, diluted with an equal volume of heptane and was purified on a Teledyne CombiFlash RF chromatography system on a silica gel Gold Rf cartridge (330 g) eluted with a 5-30% 3:1 ethyl acetate/ethanol in heptane to give the title compound. MS (ESI+) m/z 224 (M+1). To this was added had been degassed with argon for 30 minutes The mixture was purged with nitrogen again The reaction mixture was cooled to ambient temperature partitioned between ethyl acetate (750 mL) and 50% brine (1000 mL) The organic layers were dried over sodium sulfate filtered concentrated The crude residue was dissolved in a minimum of methylene chloride diluted with an equal volume of heptane was purified on a Teledyne CombiFlash RF chromatography system on a silica gel Gold Rf cartridge (330 g) eluted with a 5-30% 3:1 ethyl acetate/ethanol in heptane

反应条件: temp:80.01; pressure:0.00; stir:; See reaction.notes.procedure_details.

实验步骤: A 1000 mL round bottom flask containing N-methyl-2-(4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl)aniline (18.88 g, 81 mmol) was charged with 4-bromo-1H-pyrrolo[2,3-b]pyridine (11.40 g, 57.9 mmol), potassium phosphate (36.8 g, 174 mmol) and phenylallylchloro[1,3-bis(diisopropylphenyl)-2-imidazol-2-ylidene]palladium (II) (1.873 g, 2.89 mmol) under argon. To this was added a mixture of dioxane (400 mL) and water (100 mL) that had been degassed with argon for 30 minutes. The mixture was purged with nitrogen again, and heated at 80° C. overnight under nitrogen. The reaction mixture was cooled to ambient temperature and partitioned between ethyl acetate (750 mL) and 50% brine (1000 mL). The organic layers were dried over sodium sulfate, filtered and concentrated. The crude residue was dissolved in a minimum of methylene chloride, diluted with an equal volume of heptane and was purified on a Teledyne CombiFlash RF chromatography system on a silica gel Gold Rf cartridge (330 g) eluted with a 5-30% 3:1 ethyl acetate/ethanol in heptane to give the title compound. MS (ESI+) m/z 224 (M+1). To this was added had been degassed with argon for 30 minutes The mixture was purged with nitrogen again The reaction mixture was cooled to ambient temperature partitioned between ethyl acetate (750 mL) and 50% brine (1000 mL) The organic layers were dried over sodium sulfate filtered concentrated The crude residue was dissolved in a minimum of methylene chloride diluted with an equal volume of heptane was purified on a Teledyne CombiFlash RF chromatography system on a silica gel Gold Rf cartridge (330 g) eluted with a 5-30% 3:1 ethyl acetate/ethanol in heptane