Triethylamine → 2-(2-(Benzyloxy)ethoxy)ethyl methanesulfonate

反応式

[CH3:1][S:2](Cl)(=[O:4])=[O:3].[CH2:6]([O:13][CH2:14][CH2:15][O:16][CH2:17][CH2:18][OH:19])[C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1.CCN(CC)CC>C(Cl)Cl>[CH3:1][S:2]([O:19][CH2:18][CH2:17][O:16][CH2:15][CH2:14][O:13][CH2:6][C:7]1[CH:12]=[CH:11][CH:10]=[CH:9][CH:8]=1)(=[O:4])=[O:3]

参加物

実験手順

MsCl (15.8 mL. 204 mmol) was added to a solution of 2-(2-(benzyloxy)ethoxy)ethanol (46) (25 g, 127 mmol) and Et3N (36 mL, 255 mmol) in DCM (180 mL) at 0° C., the reaction mixture was allowed to warm up to RT and stirred for 16 h. The reaction mixture was diluted with DCM (50 mL) and washed with water (2×50 mL), 1M HCl (aq.) (2×50 mL), the organic layer was dried (MgSO4), filtered and concentrated in vacuo to afford 2-(2-(benzyloxy)ethoxy)ethyl methanesulfonate (47) (35 g, 100%) as an orange oil: m/z 275 (M+H)+ (ES+). 1H NMR (400 MHz, CDCl3) δ: 7.37-7.27 (m, 5H), 4.55 (s, 2H), 4.40-4.37 (m, 2H), 3.78-3.76 (m, 2H), 3.71-3.68 (m, 2H), 3.64-3.62 (m, 2H), 3.02 (s, 3H).