![](/CAS/GIF/65039-08-9.gif)
1-Ethyl-3-methylimidazolium bromide synthesis
- Product Name:1-Ethyl-3-methylimidazolium bromide
- CAS Number:65039-08-9
- Molecular formula:C6H11BrN2
- Molecular Weight:191.07
![1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE](/CAS/GIF/143314-17-4.gif)
143314-17-4
215 suppliers
$6.00/1g
![1,2-Dibromoethane](/CAS/GIF/106-93-4.gif)
106-93-4
379 suppliers
$15.00/5g
![Ethylene glycol diacetate](/CAS/GIF/111-55-7.gif)
111-55-7
342 suppliers
$5.00/100g
![1-Ethyl-3-methylimidazolium bromide](/CAS/GIF/65039-08-9.gif)
65039-08-9
327 suppliers
$9.00/10g
Yield:111-55-7 90%
Reaction Conditions:
at 20; for 3 h;Inert atmosphere;
Steps:
2
Example 1 and 2: ethylene glycol diacetate; A 100 mL Schlenk flask was equipped with a magnetic stirring bar, EMIM-acetate (50.0 g, 0.293 mol), and 0.5 equivalents of 1,2-dichloroethane (14.5 g, 0.146 mol) were added at room temperature and reaction was stirred at 70°C for 3h. After reaction two phases were obtained upper layer was decanted and the reaction mixture was extracted 3 times with diethyl ether, all fractions were combined and diethyl ether was removed under vacuum. The final pure product was obtained as color less liquid (90.0% yield) When 1, 2-dibromoethane was used as substrate the reaction was very fast even at room temperature and was highly exothermic. The reaction proceeds via homogeneous pathway; the pure product was distilled from the reaction mixture at 100°C under reduced pressure (90.0% yield). Ethylene glycol diacetate: 1H NMR (CDCl3, 400.13 MHz): δ = 2.02 (s, 6 H, CH3), 4.2 (s, 4H, CH2); 13C NMR: δ = 20.9 (CH3), 62.3 (CH2), 170.9 (CO); FTIR (ATR mode): v = 2961 (br), 1735 (s), 1371 (m), 1213 (s), 1048 (m).
References:
BASF SE;Universität Siegen Institut für Anorganische Chemie EP2532646, 2012, A1 Location in patent:Page/Page column 5-7
![1-Methylimidazole](/CAS/GIF/616-47-7.gif)
616-47-7
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![Bromoethane](/CAS/20180906/GIF/74-96-4.gif)
74-96-4
433 suppliers
$9.00/5g
![1-Ethyl-3-methylimidazolium bromide](/CAS/GIF/65039-08-9.gif)
65039-08-9
327 suppliers
$9.00/10g
![1-ETHYL-3-METHYLIMIDAZOLIUM ACETATE](/CAS/GIF/143314-17-4.gif)
143314-17-4
215 suppliers
$6.00/1g
![Dibromomethane](/CAS/GIF/74-95-3.gif)
74-95-3
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![METHYLENE DIACETATE, 99](/CAS/GIF/628-51-3.gif)
628-51-3
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$12.00/250mg
![1-Ethyl-3-methylimidazolium bromide](/CAS/GIF/65039-08-9.gif)
65039-08-9
327 suppliers
$9.00/10g
![1-Methylimidazole](/CAS/GIF/616-47-7.gif)
616-47-7
719 suppliers
$10.00/100g
![Diethyl carbonate](/CAS/GIF/105-58-8.gif)
105-58-8
450 suppliers
$14.00/25g
![1-Ethyl-3-methylimidazolium bromide](/CAS/GIF/65039-08-9.gif)
65039-08-9
327 suppliers
$9.00/10g
![1-Ethylimidazole](/CAS/GIF/7098-07-9.gif)
7098-07-9
315 suppliers
$5.00/10g
![Methyl bromide](/CAS/GIF/74-83-9.gif)
74-83-9
2 suppliers
$24.10/48624
![1-Ethyl-3-methylimidazolium bromide](/CAS/GIF/65039-08-9.gif)
65039-08-9
327 suppliers
$9.00/10g