4-(氮杂-1-基)-2-甲基丁-2-胺

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

实验步骤: Crude 4-(Azepan-1-yl)-2-methylbutan-2-amine (4.54 g, 24.6 mmol) was dissolved into DCM (120 mL). To this solution was added CbzOSu (6.13 g, 1 equiv, 24.6 mmol) in one portion. The reaction was left to stir at room temperature for 2 d. The solvent was removed and the residue was taken up in a mixture of ethyl acetate (150 mL) and water (100 mL). The layers were separated and the organic layer washed with saturated sodium bicarbonate (2×100 mL), water (100 mL) and brine (100 mL). The organic layer was dried over anhydrous MgSO4, filtered and concentrated to a pale yellow oil (8.33 g). The crude oil was purified on an ISCO purification system with gradient elution from 1-5% methanol in DCM. The desired fraction was collected and concentrated to give a colorless oil (3.69 g, yield: 47.1%). LRMS (ESI+) for C19H30N2O2 (318.2); Found: 319 (MH+). The reaction was left The solvent was removed the residue was taken up in a mixture of ethyl acetate (150 mL) and water (100 mL) The layers were separated the organic layer washed with saturated sodium bicarbonate (2×100 mL), water (100 mL) and brine (100 mL) The organic layer was dried over anhydrous MgSO4 filtered concentrated to a pale yellow oil (8.33 g) The crude oil was purified on an ISCO purification system with gradient elution from 1-5% methanol in DCM The desired fraction was collected concentrated