3-(2-methylpropoxy)aniline

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 3-aminophenol (500 mg, 4.60 mmol), 2-methylpropan-1-ol (1.40 g, 18.9 mmol) and triphenylphosphine (4.80 g, 16.2 mmol) in THF (10 mL) was added dropwise diethylazodicarboxylate (3.20 g, 18.3 mmol) over a 30 min period. The mixture was stirred at room temperature for 3 h. The solvent was evaporated and the residue was diluted with water, acidified with aqueous 2N HCl and extracted with ether. The aqueous phase was basified with aqueous 2N NaOH and extracted with EtOAc. The combined organic layers were dried (Na2SO4) and concentrated. The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1) to afford 3-isobutoxybenzenamine as yellow oil (330 mg, 45%). The solvent was evaporated the residue was diluted with water extracted with ether extracted with EtOAc The combined organic layers were dried (Na2SO4) concentrated The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 3-aminophenol (500 mg, 4.60 mmol), 2-methylpropan-1-ol (1.40 g, 18.9 mmol) and triphenylphosphine (4.80 g, 16.2 mmol) in THF (10 mL) was added dropwise diethylazodicarboxylate (3.20 g, 18.3 mmol) over a 30 min period. The mixture was stirred at room temperature for 3 h. The solvent was evaporated and the residue was diluted with water, acidified with aqueous 2N HCl and extracted with ether. The aqueous phase was basified with aqueous 2N NaOH and extracted with EtOAc. The combined organic layers were dried (Na2SO4) and concentrated. The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1) to afford 3-isobutoxybenzenamine as yellow oil (330 mg, 45%). The solvent was evaporated the residue was diluted with water extracted with ether extracted with EtOAc The combined organic layers were dried (Na2SO4) concentrated The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 3-aminophenol (500 mg, 4.60 mmol), 2-methylpropan-1-ol (1.40 g, 18.9 mmol) and triphenylphosphine (4.80 g, 16.2 mmol) in THF (10 mL) was added dropwise diethylazodicarboxylate (3.20 g, 18.3 mmol) over a 30 min period. The mixture was stirred at room temperature for 3 h. The solvent was evaporated and the residue was diluted with water, acidified with aqueous 2N HCl and extracted with ether. The aqueous phase was basified with aqueous 2N NaOH and extracted with EtOAc. The combined organic layers were dried (Na2SO4) and concentrated. The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1) to afford 3-isobutoxybenzenamine as yellow oil (330 mg, 45%). The solvent was evaporated the residue was diluted with water extracted with ether extracted with EtOAc The combined organic layers were dried (Na2SO4) concentrated The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 3-aminophenol (500 mg, 4.60 mmol), 2-methylpropan-1-ol (1.40 g, 18.9 mmol) and triphenylphosphine (4.80 g, 16.2 mmol) in THF (10 mL) was added dropwise diethylazodicarboxylate (3.20 g, 18.3 mmol) over a 30 min period. The mixture was stirred at room temperature for 3 h. The solvent was evaporated and the residue was diluted with water, acidified with aqueous 2N HCl and extracted with ether. The aqueous phase was basified with aqueous 2N NaOH and extracted with EtOAc. The combined organic layers were dried (Na2SO4) and concentrated. The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1) to afford 3-isobutoxybenzenamine as yellow oil (330 mg, 45%). The solvent was evaporated the residue was diluted with water extracted with ether extracted with EtOAc The combined organic layers were dried (Na2SO4) concentrated The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1)

Conditions: temp:0.00; pressure:0.00; stir:; See reaction.notes.procedure_details.

Procedure: To a mixture of 3-aminophenol (500 mg, 4.60 mmol), 2-methylpropan-1-ol (1.40 g, 18.9 mmol) and triphenylphosphine (4.80 g, 16.2 mmol) in THF (10 mL) was added dropwise diethylazodicarboxylate (3.20 g, 18.3 mmol) over a 30 min period. The mixture was stirred at room temperature for 3 h. The solvent was evaporated and the residue was diluted with water, acidified with aqueous 2N HCl and extracted with ether. The aqueous phase was basified with aqueous 2N NaOH and extracted with EtOAc. The combined organic layers were dried (Na2SO4) and concentrated. The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1) to afford 3-isobutoxybenzenamine as yellow oil (330 mg, 45%). The solvent was evaporated the residue was diluted with water extracted with ether extracted with EtOAc The combined organic layers were dried (Na2SO4) concentrated The resulting crude product was purified by silica gel column chromatograph (petroleum ether/EtOAc 15:1)