反应详情

A solution of 1,3-propanesultone (2.5 g, 20 mmol) in 2-butanone (10 mL) was added to a solution of 3-methyl-3-ethyl-3-propylamine in toluene (total volume: 30 mL). The mixture was heated to reflux for 5 hours then was cooled to room temperature. The solid was collected by suction-filtration and rinsed with acetone (2×5 mL). The solid was dried overnight at 45° C. in the vacuum oven. The title compound was obtained as a fine white solid (3.63 g, 16.3 mmol, 33% overall yield). 1H NMR (500 MHz, DMSO-d6) δ 0.79 (t, J=7.3 Hz, 6H), 1.15 (s, 3H), 1.53-1.59 (m, 4H), 1.97-2.00 (m, 2H), 2.89 (t, J=7.1 Hz, 2H), 3.03 (t, J=7.6 Hz, 2H); 13C NMR (125 MHz, DMSO-d6) δ 6.8, 20.2, 21.9, 27.7, 39.7, 48.2, 63.3 ES-MS 224; (M+H)

1. temperatureThe mixture was heated
2. temperatureto reflux for 5 hours
3. filtrationThe solid was collected by suction-filtration
4. washrinsed with acetone (2×5 mL)
5. customThe solid was dried overnight at 45° C. in the vacuum oven