ChemicalBook CAS DataBase List 1-ETHYL-3-METHYLIMIDAZOLIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE

1-ETHYL-3-METHYLIMIDAZOLIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE synthesis

9synthesis methods

Product Name:1-ETHYL-3-METHYLIMIDAZOLIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE
CAS Number:174899-82-2
Molecular formula:C6H11N2.C2F6NO4S2
Molecular Weight:391.312

I. 200g of diethyl sulfate was added drop by drop to the toluene solution of 1-methylimidazole (118g of 1-methylimidazole, 400g of toluene), cooled in an ice bath, and operated under nitrogen atmosphere to ensure that the reaction temperature was betwe

65039-09-0 Synthesis

65039-09-0
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$8.00/5g

Lithium bis(trifluoromethanesulphonyl)imide

90076-65-6
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$6.00/5g

1-ETHYL-3-METHYLIMIDAZOLIUM BIS(TRIFLUOROMETHYLSULFONYL)IMIDE

174899-82-2
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$19.00/5g

Yield:174899-82-2 62%

Reaction Conditions:

in acetonitrile at 20; for 48 h;

Steps:

2.2 Synthesis of Imidazolium Based ILs
The ionic liquid EMI?TFSI- was synthesized by a one step methathesis: 1-ethyl-3-methylimidazoliumchloride EMI?Cl- (1.465 g, 0.01 mol) and lithium bis(trifluoromethanesulfonyl)imide (LiTFSI) (2.871 g, 0.01 mol) were dissolved in acetonitrile intwo separate vials. An anion-exchange reaction occurred after adding slowly (drop bydrop) LiTFSI solution in a 10 mL round-bottom flask containing the EMI?Cl- solution,whereby the mixture was precipitated. Then, the reaction mixture was stirred at 500 rpm atroom temperature for 48 h. After removal of the solvent, the mixture was washedrepeatedly with water until the Cl- could not be detected by addition of AgNO3 solution.The organic phase was collected in a vial and was passed at least twice through Celitesilica column with ethyl acetate to completely remove Cl-. After removal of the solvent,the final product was dried under vacuum to give a yellowish liquid (2.347 g, 62 %).

References:

Le, My Loan Phung;Tran, Ngoc Anh;Ngo, Hoang Phuong Khanh;Nguyen, Truong Giang;Tran, Van Man [Journal of Solution Chemistry,2015,vol. 44,# 12,p. 2332 - 2343]

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65039-08-9 Synthesis