O,O'-Dioctadecylpentaerythritol bis(phosphite) synthesis

Yield:3806-34-6 98.2%

Reaction Conditions:

with lithium hydroxide;triethyl phosphite at 130 - 160; for 2 h;Temperature;Reagent/catalyst;Time;

Steps:

1; 2; 3.1; 3.2; 3.3 Example 2
In a 500mL four-necked flask equipped with electric stirring, thermometer, vacuum tube and condenser, add 34.1g (0.2mol) triethyl phosphite,13.6g (0.1mol) pentaerythritol, 50g (0.185mol) stearyl alcohol,1g lithium hydroxide, heated to 130°C, keep the reaction under these conditions for 1h,Slowly adjust the vacuum to keep it at -0.07MPa,The temperature was continued to rise to 160°C, and the reaction was maintained for 1 h under these conditions.The ethanol produced during the reaction was removed and filtered hot to obtain 71.98 g of the product, with a yield of 98.2%.

References:

Yingkou Fengguang New Materials Co., Ltd.;Wang Lei;Qi Tao;Jiang Yang;Zhang Yang CN111620905, 2020, A Location in patent:Paragraph 0020-0047

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