反应详情

温度

85 °C

A glass microwave reaction vessel was charged with benzyl(4-(bis(2-methoxyethyl)amino)-2-methylbutan-2-yl)carbamate (500 mg, 1.42 mmol) in TFA/DCM (1:1, 4 mL). The reaction mixture was stirred and heated in a Initiator microwave reactor (Personal Chemistry, Biotage AB, Inc.) at 85° C. for 7 h. The solvent was removed and the residue was filtered through a plug of Si-carbonate (0.59 mmol/g) and washed with DCM (300 mL, 5% MeOH in DCM (200 mL) and the filtrate was concentrated to give N1,N1-bis(2-methoxyethyl)-3-methylbutane-1,3-diamine (310 mg, 1.42 mmol, 100% yield) as an orange oil. 1H NMR (400 MHz, CDCl3) δ ppm 3.47 (4H, t, J=6.1 Hz), 3.34 (6H, s), 2.71 (4H, t, J=6.1 Hz), 2.60-2.67 (2H, m), 1.50-1.59 (2H, m), 1.10 (6H, s).

1. customA glass microwave reaction vessel
2. customThe solvent was removed
3. filtrationthe residue was filtered through a plug of Si-carbonate (0.59 mmol/g)
4. washwashed with DCM (300 mL, 5% MeOH in DCM (200 mL)
5. concentrationthe filtrate was concentrated