Thiophosphonate compound as well as preparation method and application thereof
A technology of thiophosphonate and compounds, which is applied in the field of thiophosphonate compounds, can solve the problem of inconsistent development trends, lack of extreme pressure and anti-wear agent bearing capacity and anti-wear performance, and inability to measure anti-wear and anti-wear performance and carrying capacity etc.
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Embodiment 1
[0050] The preparation of embodiment 1 pentadecylphenol
[0051] Put 100g of cardanol and 1.5g of palladium-carbon catalyst into a 200ml autoclave, seal the autoclave, feed hydrogen to 3.5MPa, start stirring, heating, and react at 200°C for 4.5 hours. After the reaction was completed, the temperature was lowered to 60°C, and the viscous reaction mixture was taken out, and distilled under reduced pressure at 100 Pa and 160°C for 1 h, and a milky white solid was obtained after cooling. Dissolve it with petroleum ether, and then crystallize and purify to obtain m-pentadecylphenol with a purity greater than 98%, and the reaction conversion rate is 83.6%.
Embodiment 2
[0052] Embodiment 2 Preparation of Dicardanol Phenylthiophosphonate
[0053] Add 20g of cardanol, 4g of triethylamine and 20g of toluene into the reaction flask, start heating and stirring, add 7.5g of phenylphosphonothioate dichloride, maintain the reaction temperature at 70°C, and react for 5 hours. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. The reaction product was washed with distilled water until neutral, and the organic phase was distilled under reduced pressure at 100 Pa and 150°C for 1 h to remove water and solvent to obtain a brownish yellow transparent liquid with a conversion rate of 96.6%.
Embodiment 3
[0054] The preparation of embodiment 3 phenylthiophosphonic acid two (3-pentadecylphenyl) phenol esters
[0055] Add 20 g of pentadecylphenol prepared in Example 1, 8 g of triethylamine and 50 g of toluene into the reaction flask, start heating and stirring, add 5 g of phenylphosphonothioate dichloride, and maintain the reaction temperature at 90 ° C. React for 4 hours. After the reaction, the temperature was lowered to obtain a brown-red transparent liquid. The reaction product was washed with distilled water until neutral, and the organic phase was distilled under reduced pressure at 100 Pa and 150° C. for 1 h to remove water and solvent to obtain a brownish-yellow transparent liquid with a conversion rate of 95.8%.
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