1-Methylpiperazine → 2-(4-methylpiperazin-1-yl)-N-(prop-2-yn-1-yl)acetamide
反応式
Br[CH2:2][C:3]([NH:5][CH2:6][C:7]#[CH:8])=[O:4].[CH3:9][N:10]1[CH2:15][CH2:14][NH:13][CH2:12][CH2:11]1>C(Cl)Cl>[CH3:9][N:10]1[CH2:15][CH2:14][N:13]([CH2:2][C:3]([NH:5][CH2:6][C:7]#[CH:8])=[O:4])[CH2:12][CH2:11]1参加物
4
実験手順
To a solution of 2-bromo-N-(prop-2-yn-1-yl)acetamide (0.7 g, 3.98 mmol) in DCM (10 mL) added N-methyl piperazine (0.66 mL, 5.96 mmol) drop wise. Reaction mixture stirred at rt for 16 h, diluted with DCM and washed with water and brine. The organic layer was dried over Na2SO4 and concentrated in vacuo. The crude residue was triturated with ether-pentane, affording the title compound (0.38 g, 49%); LCMS: m/z=196.15 (M+1); 1H NMR (300 MHz, DMSO-d6) δ 8.06 (d, J=6.1 Hz, 1H), 3.86 (dd, J=5.9, 2.5 Hz, 2H), 3.07 (t, J=2.5 Hz, 1H), 2.91 (s, 2H), 2.47-2.25 (m, 8H), 2.15 (s, 3H).