A kind of synthetic method of terpinolene 4,8-epoxide
A technology of terpineolene and epoxide, which is applied in the field of synthesis of terpineolene 4,8-epoxide, can solve the problems of difficult catalyst recovery, wastewater pollution oxidation selectivity, harsh reaction conditions, etc., and achieve oxidation Moderate performance, low equipment requirements, and simple treatment
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Embodiment 1
[0027] Mix 10 g of terpinolene raw material (mass fraction 84%), 3 g of 2,2,2-trifluoroacetophenone, 5 g of acetonitrile and 6 g of toluene to obtain a mixture solution, which is transferred to a batch reactor 10g of 50% hydrogen peroxide solution was slowly added dropwise to the mixture solution at 30°C, and the dropping time was 2h. After the dropwise addition, continue to stir and react for 9 hours, then let it stand, collect the organic phase and the water phase after the mixture is separated, add 9 g of sodium sulfite solution (mass fraction 15%) to the organic phase, stir for 30 minutes, and remove the remaining hydrogen peroxide. The remaining organic phase was sampled for chromatographic analysis.
Embodiment 2
[0029] Mix 100 g of terpinolene raw material (mass fraction 84%), 25 g of 2,2,2-trifluoroacetophenone, 50 g of acetonitrile and 50 g of toluene to obtain a mixture solution, which is transferred to a batch reactor 180g of 30% hydrogen peroxide solution was slowly added dropwise to the mixture solution at 35°C for 2 hours. After the dropwise addition, continue to stir and react for 9 hours, then stand still, collect the organic phase and the water phase after the mixture is separated, add 92.4g of sodium sulfite solution (mass fraction 15%) to the organic phase, stir for 30 minutes, and remove the remaining hydrogen peroxide , and the remaining organic phase was sampled for chromatographic analysis.
Embodiment 3
[0031] Hexafluoroacetone was used to replace the 2,2,2-trifluoroacetophenone used in Example 1, and the addition amount was 2.9 g, and the rest of the steps were the same as in Example 1.
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Abstract
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