ChemicalBook CAS DataBase List 3-Isocyanatopropyltriethoxysilane

3-Isocyanatopropyltriethoxysilane synthesis

5synthesis methods

Product Name:3-Isocyanatopropyltriethoxysilane
CAS Number:24801-88-5
Molecular formula:C10H21NO4Si
Molecular Weight:247.36

5089-70-3 Synthesis

5089-70-3
317 suppliers
$10.00/5g

57-13-6 Synthesis

57-13-6
712 suppliers
$5.00/5g

24801-88-5
299 suppliers
$40.00/500mg

Yield:24801-88-5 71%

Reaction Conditions:

Stage #1:(3-chloropropyl)triethoxysilane;urea with ammonium chloride at 130; for 3 h;Inert atmosphere;
Stage #2: with manganese octanoate at 200; for 2 h;Inert atmosphere;Reagent/catalyst;Temperature;

Steps:

2; 4 Example 2
In a 1 L three-necked flask, 290 g of 3-chloropropyltriethoxysilane (1.2 mol) was added.60 g of urea (1 mol) and 18 g of ammonium chloride, heated to 130 ° C under nitrogen protection,After stirring for 3 hours, it was cooled to room temperature and pressure filtered by nitrogen.Immediately after separation of the liquid, it was transferred to a 500 mL three-necked flask under nitrogen protection.Add manganese octoate solution (containing 0.06 g of metal manganese) and heat to 200 ° C.After stirring for 2 hours, the heating was stopped, and after cooling, the mixture was transferred to a single-necked flask, and the product was separated by distillation.Collect 105±2°C/2mmHg fraction 3-isocyanatepropyltriethoxysilane,A total of 175 grams of product was obtained, the yield was 71%, and the content of gas chromatography detection was ≥98%.

References:

Jiangxi Chenguang New Materials Co., Ltd.;Liang Qiuhong;Ding Bing;Yang Jing;Zhou Jun;Ge Liwei CN109400640, 2019, A Location in patent:Paragraph 0018; 0020

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