ChemicalBook CAS DataBase List Tris(trimethylsilyl)phosphate

Tris(trimethylsilyl)phosphate synthesis

7synthesis methods

Product Name:Tris(trimethylsilyl)phosphate
CAS Number:10497-05-9
Molecular formula:C9H27O4PSi3
Molecular Weight:314.54

Tris(trimethylsilyl)phosphine is prepared by treating trimethylsilyl chloride, white phosphorus, and sodium-potassium alloy:
1/4 P4 + 3 Me3SiCl + 3 K → P(SiMe3)3 + 3 KCl

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10497-05-9
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Yield:10497-05-9 89.6%

Reaction Conditions:

with ammonium dihydrogen phosphate at 78; for 3 h;Temperature;Reagent/catalyst;Time;

Steps:

1
To the reflux condenser, thermometer 1000ml three-necked flask was added352 g (3.24 mol) of trimethylchlorosilane and 115 g (1 mol) of ammonium dihydrogen phosphate were added, and the mixture was stirred at 78 ° C for 3 hours under stirring. After the reaction was filtered, the filtrate was tris (trimethylsilyl) phosphate crude, and then vacuum distillation, collecting 125 ~ 128 / 30mmHg fraction,282 g of tris (trimethylsilyl) phosphate was obtained in a yield of 89.6%. An exhaust gas absorption device was connected to the outlet of the reflux condenser. The exhaust gas absorption device absorbed the generated hydrogen chloride gas by water.

References:

Jiangsu Chang Yuanhuasheng New Energies Materials Co., Ltd.;Yang Zhiyong;Zhang Xianlin;Zhou Lixin;Lu Haiyuan;Li Weifeng;Xiao Yong CN105949233, 2016, A Location in patent:Paragraph 0018; 0019; 0021; 0023; 0025; 0027; 0029

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