Synthetic method of 1,3,5-triacryloylhexahydro-1,3,5-triazine
A technology for synthesizing triacryloyl hexahydro-1,3,5-triacryloyl hexahydro-1,3,5-triazine can solve the problem of complex synthesis method, low yield and production cost. High problems, to achieve the effect of fewer synthesis steps, high yield, and less discharge of three wastes
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Embodiment 1
[0022] Add 420 g of carbon tetrachloride, 45 g of paraformaldehyde, and 1 g of concentrated sulfuric acid into the reaction flask, stir evenly and slowly heat to 80°C, add 87.5 g of acrylonitrile dropwise, and continue the heat preservation reaction for 4 hours after the addition is complete. The reaction solution was cooled to normal temperature, 3.5 g of 20% sodium hydroxide solution was added, and fully stirred and mixed. Cool to -5°C, stir, and keep for 1.5 hours. The above reaction solution was filtered at -5-0°C, and the filter cake was dried in a constant temperature oven at 80°C to constant weight to obtain 107.7 g of a white product with a yield of 86.5%.
Embodiment 2
[0024] Add 500 g of chlorobenzene, 45 g of paraformaldehyde, and 2 g of concentrated sulfuric acid into the reaction flask, stir evenly and slowly heat to 70°C, add 95.4 g of acrylonitrile dropwise, and continue the heat preservation reaction for 3 hours after the addition is complete. The reaction solution was cooled to normal temperature, 5.5 g of 20% sodium hydroxide solution was added, and fully stirred and mixed. Cool to 0°C, stir, and keep for 2.5 hours. The above reaction solution was filtered at 0-5°C, and the filter cake was dried in a constant temperature oven at 70°C to constant weight to obtain 109.8 g of a white product with a yield of 88.2%.
Embodiment 3
[0026] Add 700 g of methanol, 90 g of paraformaldehyde, and 5 g of concentrated sulfuric acid into the reaction flask, stir evenly and slowly heat to 70°C, add 190.8 g of acrylonitrile dropwise, and continue the heat preservation reaction for 4 hours after the addition is complete. The reaction solution was cooled to normal temperature, 10 g of 20% sodium hydroxide solution was added, and the mixture was fully stirred and mixed. Cool to -5°C, stir, and keep for 3 hours. The above reaction solution was filtered at -5-0°C, and the filter cake was dried in a constant temperature oven at 60°C to constant weight to obtain 229.8 g of a white product with a yield of 92.3%.
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