Preparation method of tea saponin ester succinate surfactant and product thereof
A surfactant and succinate technology, which is applied in the preparation of sugar derivatives, chemical instruments and methods, sugar derivatives, etc., can solve the problem that modified surfactants cannot meet the various needs of surfactants, complex processes, The problem of high preparation cost can achieve the effect of easy control of reaction conditions, simple preparation process and good surface activity
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[0028] Example 1
[0029]1 mmol of tea saponin, 5 mmol of succinic anhydride and 5 mmol of anhydrous potassium carbonate were added to 20 ml of N,N-dimethylformamide, and the reaction was stirred at 25 degrees Celsius for 12 hours. After the reaction, 10 ml of water was added to the reaction solution to dilute, and AB-8 macroporous adsorption resin was added to adsorb tea saponin succinate. The adsorption time was 5 hours, and TLC was detected until the adsorption was complete. The adsorption liquid was removed by suction filtration, and 2 times the volume of 80% ethanol was added to the AB-8 macroporous adsorption resin adsorbed with tea saponin succinate to decompose the esterification product of tea saponin, and the desorption solution was concentrated by rotary evaporation. The solid tea saponin succinate surfactant is obtained by vacuum freeze-drying. figure 1 is the infrared spectrum of tea saponin, figure 2 It is the infrared spectrum of the tea saponin succinate sur...
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[0030] Example 2
[0031] 1 mmol of tea saponin, 10 mmol of succinic anhydride, and 10 mmol of anhydrous potassium carbonate were added to 30 ml of N,N-dimethylformamide, and the reaction was stirred at 25 degrees Celsius for 12 hours. After the reaction, 15 ml of water was added to the reaction solution to dilute, and AB-8 macroporous adsorption resin was added to adsorb tea saponin succinate. The adsorption time was 5 hours, and TLC was detected until the adsorption was complete. The adsorption solution was removed by suction filtration, and three times the volume of 90% ethanol was added to the AB-8 macroporous adsorption resin adsorbed with tea saponin succinate to decompose the esterification product of tea saponin, and the desorption solution was concentrated by rotary evaporation. The solid tea saponin succinate surfactant is obtained by vacuum freeze-drying. image 3 Infrared spectrum of the tea saponin succinate surfactant prepared in Example 2.
Example Embodiment
[0032] Example 3
[0033] 1 mmol of tea saponin, 20 mmol of succinic anhydride and 20 mmol of anhydrous potassium carbonate were added to 35 ml of N,N-dimethylformamide, and the reaction was stirred at 30 degrees Celsius for 16 hours. After the reaction, 15 ml of water was added to the reaction solution to dilute, and AB-8 macroporous adsorption resin was added to adsorb tea saponin succinate. The adsorption time was 6 hours, and TLC was detected until the adsorption was complete. The adsorption liquid was removed by suction filtration, and four times the volume of 85% ethanol was added to the AB-8 macroporous adsorption resin adsorbed with tea saponin succinate to decompose the tea saponin esterification product, and the desorption liquid was concentrated by rotary evaporation. The solid tea saponin succinate surfactant is obtained by vacuum freeze-drying. The infrared spectrum of the product is similar to that of Example 2.
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