Ionic liquid based on peroxyheteropolyacid and preparation method thereof
A technology of peroxopolyacid and ionic liquid, applied in organic chemistry and other directions, to achieve strong oxidizing effect
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example 1
[0021] a) Add 100mL toluene and 75mL N-propylimidazole to a 250mL four-necked flask respectively, and slowly add 23g of 1,3-propane sultone dropwise into the four-necked flask at 60°C under the protection of nitrogen. After completion, the reaction was continued for 3 h to produce a white solid, cooled, filtered, washed with 50 mL of toluene and acetone, respectively, and dried in vacuum at 60° C. for 24 h to obtain an ionic liquid intermediate.
[0022] b) Take 2.88g of phosphotungstic acid and add it to a 100mL four-necked flask. At room temperature, slowly drop 10mL of 30% hydrogen peroxide into the four-necked flask. After the dripping, continue the reaction at 30°C for 1.5h , to obtain peroxopolyacid solution.
[0023] c) Get 0.55g of the ionic liquid intermediate prepared in a) and add it to a four-necked flask, and slowly add the peroxopolyacid solution prepared in b) dropwise to the four-necked flask at room temperature. After dripping, Continue to react at 60°C for 5...
example 2
[0026] a) Add 100mL toluene and 75mL N-propylimidazole to a 250mL four-necked flask respectively, and slowly drop 25g of 1,4-butane sultone into the four-necked flask at 60°C under the protection of nitrogen. After completion, the reaction was continued for 3 h to produce a white solid, cooled, filtered, washed with 50 mL of toluene and acetone, respectively, and vacuum-dried at 60° C. for 24 h to obtain an ionic liquid intermediate.
[0027] b) Take 2.88g of phosphotungstic acid and add it to a 100mL four-necked flask. At room temperature, slowly drop 10mL of 30% hydrogen peroxide into the four-necked flask. After the dripping, continue the reaction at 30°C for 1.5h , to obtain peroxopolyacid solution.
[0028] c) Get 0.3g of the ionic liquid intermediate prepared in a) and add it to a four-necked flask, and slowly add the peroxopolyacid solution prepared in b) to the four-necked flask at room temperature. After the drop, Continue to react at 60°C for 5h, cool, filter, wash ...
example 3
[0031] a) Add 100mL toluene and 75mL N-octylimidazole to a 250mL four-necked flask respectively, and slowly add 25g of 1,4-butane sultone dropwise into the four-necked flask at 60°C under nitrogen protection. After completion, the reaction was continued for 3 h to produce a white solid, which was cooled and filtered. The white solid was washed with 50 mL of toluene and acetone respectively, and dried in vacuum at 60° C. for 24 h to obtain an ionic liquid intermediate.
[0032] b) Take 2.88g of phosphotungstic acid and add it to a 100mL four-necked flask. At room temperature, slowly drop 10mL of 30% hydrogen peroxide into the four-necked flask. After the dripping, continue the reaction at 30°C for 1.5h , to obtain peroxopolyacid solution.
[0033] c) Get 0.95g of the ionic liquid intermediate prepared in a) and add it to a four-necked flask, and slowly add the peroxopolyacid solution prepared in b) to the four-necked flask at room temperature. After the drop, Continue to react...
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