Preparation method of 1,3-propane sultone derivative
A technology of propane sultone and propene sultone, which is applied in the field of preparation of 1,3-propane sultone derivatives, can solve the problems of long steps, low yield, large pollution, etc., and achieve reaction Effect of long time, high reaction temperature and high risk
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Embodiment 1
[0024] Using dichloromethane as the reaction solvent, add 1mol of 1,3-propene sultone into 200ml of dichloromethane, and then pass in HF gas, control the reaction pressure to 1atm, the reaction temperature to 10°C and the reaction time to 1h , to obtain 2-fluoro-1,3-propane sultone, the calculated yield is 46.0%, the purity is 99.4%, and the product moisture is 16PPM.
Embodiment 2
[0026] Using dichloromethane as the reaction solvent, add 1mol of 1,3-propene sultone into 400ml of dichloromethane, and then pass in HF gas, control the reaction pressure to 7atm, the reaction temperature to 35°C and the reaction time to 5h , to obtain 2-fluoro-1,3-propane sultone, the calculated yield is 74.4%, the purity is 99.6%, and the product moisture is 17PPM.
Embodiment 3
[0028] Using dichloromethane as the reaction solvent, add 1mol of 1,3-propene sultone into 800ml of dichloromethane, and then pass in HF gas, control the reaction pressure to 10atm, the reaction temperature to 50°C and the reaction time to 10h , to obtain 2-fluoro-1,3-propane sultone, the calculated yield is 87.2%, the purity is 99.8%, and the product moisture is 18PPM.
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