Ternary unsaturated carbocyclic boron trifluoride salt electrolyte as well as preparation method and application thereof
A boron trifluoride and unsaturated technology, which is applied in the field of ternary unsaturated carbocyclic boron trifluoride salt electrolyte and its preparation, can solve problems such as correlation or deducibility uncertainty, and achieve electrochemical performance Effects of improving, hindering direct contact, and widening the electrochemical window
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Embodiment 1
[0067] Example 1: Raw materials M1
[0068] Preparation method: under nitrogen atmosphere, mix 0.01 mol of raw material and boron trifluoride tetrahydrofuran complex (4.19 g, 0.03 mol) in 15 ml of ethylene glycol dimethyl ether, and react at room temperature for 12 hours. The obtained mixed solution was dried under reduced pressure under the conditions of 40° C. and a vacuum degree of about -0.1 MPa to remove the solvent to obtain an intermediate. Lithium ethoxide (1.56g, 0.03mol) was dissolved in 10ml of ethanol and slowly added to the intermediate, stirred at 45°C for 8 hours, and the resulting mixture was dried under reduced pressure at 45°C and a vacuum of about -0.1MPa. , the obtained solid was washed three times with n-butyl ether, filtered and dried to obtain the product M1. The yield was 86%.
Embodiment 2
[0069] Example 2: Raw materials M2
[0070] Preparation method: under argon atmosphere, mix 0.01 mol of raw material and boron trifluoride ether complex (4.26 g, 0.03 mol) in 15 ml of THF (tetrahydrofuran), and react at room temperature for 12 hours. The obtained mixed solution was dried under reduced pressure under the conditions of 30° C. and a vacuum degree of about -0.1 MPa to remove the solvent to obtain an intermediate. 18.80ml of butyllithium in hexane solution (c=1.6mol / L) was added to the intermediate, the reaction was stirred at room temperature for 6 hours, and the resulting mixed solution was dried under reduced pressure at 40°C and a vacuum of about -0.1MPa. , the obtained crude product was washed three times with cyclohexane, filtered and dried to obtain product M2. The yield was 89%, NMR as figure 1 shown.
Embodiment 3
[0071] Example 3: Raw materials M3
[0072] Preparation method: under nitrogen atmosphere, take 0.01 mol of raw material and lithium methoxide (1.14 g, 0.03 mol), mix with 20 ml of methanol, and react at room temperature for 8 hours. The obtained mixed solution was dried under reduced pressure under the conditions of 40° C. and a vacuum degree of about -0.1 MPa to remove the solvent to obtain an intermediate. The boron trifluoride tetrahydrofuran complex (4.19g, 0.03mol) and 15ml THF (tetrahydrofuran) were added to the intermediate, and the reaction was stirred at room temperature for 6 hours. Drying under reduced pressure, the obtained solid was washed three times with isopropyl ether, filtered and dried to obtain product M3. Yield 93%.
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