Реакция #74194

Уравнение реакции

3-Methyl-1-(propoxyethoxycarbonylmethyl)imidazolium bromide

sodium octyl sulfate

→

3-Methyl-1-(propoxyethoxycarbonylmethyl)imidazolium octyl sulfate

Выход 85.0%

Растворители

water

Условия реакции

Обработка

1. 1
   ДругоеThe water was then slowly removed under vacuum
2. 2
   workup.DISSOLUTIONThe precipitate was dissolved in DCM (10 mL)
3. 3
   Промывкаwashed with distilled water (2×5 mL)
4. 4
   ДругоеThe product remaining was dried on the rotary evaporator
5. 5
   Другоеunder high vacuum for 8 h to yield a dark yellow grease at RT in 85% yield (3.33 g, 7.64 mmol)

Методика

To a solution of 3-Methyl-1-(propoxyethoxycarbonylmethyl)imidazolium bromide (3.32 g, 12.0 mmol) in distilled water (20 mL) was added in one portion sodium octyl sulfate (2.09 g, 9.00 mmol) and stirred at 60° C. for 2 h. The water was then slowly removed under vacuum. The precipitate was dissolved in DCM (10 mL) and washed with distilled water (2×5 mL). The product remaining was dried on the rotary evaporator and then under high vacuum for 8 h to yield a dark yellow grease at RT in 85% yield (3.33 g, 7.64 mmol). 1H δ ppm 9.45 (s, 1H), 7.48 (t, J=1.6 Hz, 1H), 7.41 (t, J=1.6 Hz, 1H), 5.25 (5, 2H), 4.36 (t, J=4.8 Hz, 2H), 4.01 (s, 3H), 3.67 (t, J=4.6 Hz, 2H), 3.43 (t, J=6.8 Hz, 2H), 1.63-1.58 (m, 2H), 0.92-0.86 (m, 3H) 13C δ ppm 166.45, 138.89, 123.71, 123.06, 73.04, 67, 92, 67.89, 65.67, 49.91, 36.58, 31.83, 29.50, 29.36, 29.26, 25.87, 22.73, 22.66, 14.13, 10.47

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