五甲苯胺

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

实验步骤: To a solution of pentamethylbenzene (5 g, 33.8 mmol) in dichloromethane (250 mL) at 0° C. was quickly added nitronium tetrafluoroborate (5 g). The mixture was stirred for 4 h before it was quenched with cold water. The organic layer was concentrated and the residue was reduced (Example 14, procedure C) to give pentamethylaniline in 52% yleld. at 0° C. was quenched with cold water The organic layer was concentrated

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

实验步骤: A one neck 2000 ml round bottom flask was charged with 50 grams of 1-nitro-2,3,4,5,6-pentamethylbenzene and 1000 ml methanol. A solution of 50 g of ammonium chloride and 200 ml of water was then added. Zinc dust (50 g) was then added in portions. The mixture was allowed to stir for 20 hours. The solids were filtered and the solvent was removed from the mother liquor. The product was purified by silica gel column with dichlormethane as the eluent. The good fractions are combined to yield pentamethylaniline as a white solid. The solids were filtered the solvent was removed from the mother liquor The product was purified by silica gel column with dichlormethane as the eluent

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

实验步骤: A one neck 2000 ml round bottom flask was charged with 50 grams of 1-nitro-2,3,4,5,6-pentamethylbenzene and 1000 ml methanol. A solution of 50 g of ammonium chloride and 200 ml of water was then added. Zinc dust (50 g) was then added in portions. The mixture was allowed to stir for 20 hours. The solids were filtered and the solvent was removed from the mother liquor. The product was purified by silica gel column with dichlormethane as the eluent. The good fractions are combined to yield pentamethylaniline as a white solid. The solids were filtered the solvent was removed from the mother liquor The product was purified by silica gel column with dichlormethane as the eluent

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

实验步骤: To a solution of pentamethylbenzene (5 g, 33.8 mmol) in dichloromethane (250 mL) at 0° C. was quickly added nitronium tetrafluoroborate (5 g). The mixture was stirred for 4 h before it was quenched with cold water. The organic layer was concentrated and the residue was reduced (Example 14, procedure C) to give pentamethylaniline in 52% yield. at 0° C. was quenched with cold water The organic layer was concentrated

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

实验步骤: To a solution of pentamethylbenzene (5 g, 33.8 mmol) in dichloromethane (250 mL) at 0° C. was quickly added nitronium tetrafluoroborate (5 g). The mixture was stirred for 4 h before it was quenched with cold water. The organic layer was concentrated and the residue was reduced (Example 14, procedure C) to give pentamethylaniline in 52% yield. at 0° C. was quenched with cold water The organic layer was concentrated

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

实验步骤: To a solution of pentamethylbenzene (5 g, 33.8 mmol) in dichloromethane (250 mL) at 0° C. was quickly added nitronium tetrafluoroborate (5 g). The mixture was stirred for 4 h before it was quenched with cold water. The organic layer was concentrated and the residue was reduced (Example 14, procedure C) to give pentamethylaniline in 52% yield. at 0° C. was quenched with cold water The organic layer was concentrated

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

实验步骤: A one neck 2000 ml round bottom flask was charged with 50 grams of 1-nitro-2,3,4,5,6-pentamethylbenzene and 1000 ml methanol. A solution of 50 g of ammonium chloride and 200 ml of water was then added. Zinc dust (50 g) was then added in portions. The mixture was allowed to stir for 20 hours. The solids were filtered and the solvent was removed from the mother liquor. The product was purified by silica gel column with dichlormethane as the eluent. The good fractions are combined to yield pentamethylaniline as a white solid. The solids were filtered the solvent was removed from the mother liquor The product was purified by silica gel column with dichlormethane as the eluent

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

实验步骤: To a solution of pentamethylbenzene (5 g, 33.8 mmol) in dichloromethane (250 mL) at 0° C. was quickly added nitronium tetrafluoroborate (5 g). The mixture was stirred for 4 h before it was quenched with cold water. The organic layer was concentrated and the residue was reduced (Example 14, procedure C) to give pentamethylaniline in 52% yleld. at 0° C. was quenched with cold water The organic layer was concentrated

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

实验步骤: A one neck 2000 ml round bottom flask was charged with 50 grams of 1-nitro-2,3,4,5,6-pentamethylbenzene and 1000 ml methanol. A solution of 50 g of ammonium chloride and 200 ml of water was then added. Zinc dust (50 g) was then added in portions. The mixture was allowed to stir for 20 hours. The solids were filtered and the solvent was removed from the mother liquor. The product was purified by silica gel column with dichlormethane as the eluent. The good fractions are combined to yield pentamethylaniline as a white solid. The solids were filtered the solvent was removed from the mother liquor The product was purified by silica gel column with dichlormethane as the eluent