1-Methylpyrrolidine → 1-[2-(2-Methoxyethoxy)ethyl]-1-methylpyrrolidin-1-ium bromide

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Reaction Steps

N-methylpyrrolidine (9.11 g, 0.1 mol), 1-bromo-2-(2-methoxy-ethoxy)ethane (10.0 g, 0.103 mol) and anhydrous acetone (40 cm3) was refluxed for 24 h. After evaporation under reduced pressure, the yellow solid was washed with diethylether. 1-[2-(2-methoxyethoxy)ethyl]-1-methylpyrrolidinium bromide was obtained as white solid in ca. 68% yield. δH (500.13 MHz, CDCl3) 3.98 (2H, m), 3.87 (6H, m), 3.68 (2H, m), 3.53 (2H, m), 3.40 (3H, s), 3.33 (3H, s), 2.29 (4H, m).

Provenance & Evidence