A kind of antistatic antioxidation bifunctional compound and its synthesis method
A synthesis method and compound technology, applied in chemical instruments and methods, preparation of organic compounds, preparation of aminohydroxy compounds, etc., can solve the problems of reducing the antioxidant effect, etc., and achieve the effect of increasing the antistatic period, good antioxidation, and preventing shedding. Effect
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Embodiment 1
[0074] Under nitrogen protection, 220g of 2,6-di-tert-butyl-p-cresol and 150g of dimethyl sulfate were dissolved in 2.5L of dry chloroform. The reaction solution was heated to 60° C. under stirring in a 5 L three-necked flask, and the reaction continued for 1.5 hours. The reaction solution was cooled to 25°C and extracted four times with 1LO.5 mol / L potassium carbonate solution, and the organic layer was dried with anhydrous magnesium sulfate for 24 hours. The anhydrous magnesium sulfate desiccant in the solution was removed by filtration, and the solution was evaporated to dryness under vacuum to obtain 215.3 g of 2,6-di-tert-butyl-p-methylanisole, with a yield of 92%.
[0075] Under nitrogen protection, 215.3g of 2,6-di-tert-butyl-p-methylanisole was added into a 5L three-necked flask containing 3L of carbon tetrachloride. Then add 161g of N-bromosuccinimide and 2g of azobisisobutyronitrile, heat the reaction solution to 77°C for 3 hours and stop heating, cool the reaction ...
Embodiment 2
[0081] Under nitrogen protection, 220g of 2,6-di-tert-butyl-p-cresol and 150g of dimethyl sulfate were dissolved in 2.5L of dry chloroform. The reaction solution was heated to 60° C. under stirring in a 5 L three-necked flask, and the reaction continued for 1.5 hours. The reaction solution was cooled to 25°C and extracted four times with 1LO.5 mol / L potassium carbonate solution, and the organic layer was dried with anhydrous magnesium sulfate for 24 hours. The anhydrous magnesium sulfate desiccant in the solution was removed by filtration, and the solution was evaporated to dryness under vacuum to obtain 215.3 g of 2,6-di-tert-butyl-p-methylanisole, with a yield of 92%.
[0082] Under nitrogen protection, 215.3g of 2,6-di-tert-butyl-p-methylanisole was added into a 5L three-necked flask containing 3L of carbon tetrachloride. Then add 161g of N-bromosuccinimide and 2g of azobisisobutyronitrile, heat the reaction solution to 77°C for 3 hours and stop heating, cool the reaction ...
Embodiment 3
[0088] Under nitrogen protection, 220g of 2,6-di-tert-butyl-p-cresol and 150g of dimethyl sulfate were dissolved in 2.5L of dry chloroform. The reaction solution was heated to 60° C. under stirring in a 5 L three-necked flask, and the reaction continued for 1.5 hours. The reaction solution was cooled to 25°C and extracted four times with 1LO.5 mol / L potassium carbonate solution, and the organic layer was dried with anhydrous magnesium sulfate for 24 hours. The anhydrous magnesium sulfate desiccant in the solution was removed by filtration, and the solution was evaporated to dryness under vacuum to obtain 215.3 g of 2,6-di-tert-butyl-p-methylanisole, with a yield of 92%.
[0089] Under nitrogen protection, 215.3g of 2,6-di-tert-butyl-p-methylanisole was added into a 5L three-necked flask containing 3L of carbon tetrachloride. Then add 161g of N-bromosuccinimide and 2g of azobisisobutyronitrile, heat the reaction solution to 77°C for 3 hours and stop heating, cool the reaction ...
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