ChemicalBook CAS DataBase List 2-[2-[2-(dimethylamino) ethoxy]ethoxy]-ethanol

2-[2-[2-(dimethylamino) ethoxy]ethoxy]-ethanol synthesis

6synthesis methods

Product Name:2-[2-[2-(dimethylamino) ethoxy]ethoxy]-ethanol
CAS Number:2741-30-2
Molecular formula:C8H19NO3
Molecular Weight:177.24

75-21-8
233 suppliers
$39.10/1mL

124-40-3
523 suppliers
$18.00/100ml

1704-62-7 Synthesis

1704-62-7
213 suppliers
$6.00/10g

2-[2-[2-(dimethylamino) ethoxy]ethoxy]-ethanol

2741-30-2
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Yield:1704-62-7 92.3% ，2741-30-2 7.7%

Reaction Conditions:

in water at 80; for 0.025 h;Temperature;

Steps:

14 Example 1. A method for preparing DMAE and DMAEE in a microtubule reactor. Using ethylene oxide and dimethylamine as raw materials and water as a catalyst, the following steps are performed in sequence

By adjusting the flow rate pump I21, the flow rate pump II22, the flow rate pump III23 and the flow rate pump IV24 (the flow rate of the flow rate pump IV24 is the sum of the flow rate pump I21 and the flow rate pump III22), the water, the ethylene oxide and the dimethylamine The flow rates were 0.433 mL/min, 0.435 mL/min, and 0.333 mL/min, respectively, so that the mass ratio of water to dimethylamine was 2:1, and ethylene oxide was The molar ratio of dimethylamine is 1.8:1, which is passed into the microtubule reactor 3 placed in a water bath at 80° C., and the reaction residence time is 25 s. The DMAE and DMAEE aqueous solution are obtained, and after distillation, DMAE and DMAEE are obtained. The purity is 99.7% and 99.8%, respectively. DMAE accounted for 26.1mol% of the product, DMAEE accounted for 73.9mol%, DMAEEE accounts for 0 mol% The conversion rate of ethylene oxide is 94.1%. The dimethylamine conversion rate was 97.4% .

References:

CN107759482,2018,A Location in patent:Paragraph 0035-0036; 0042

77544-68-4 Synthesis