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ChemicalBook CAS DataBase List Ethyl 3-ethoxypropionate
763-69-9

Ethyl 3-ethoxypropionate synthesis

14synthesis methods
-

Yield:763-69-9 98%

Reaction Conditions:

with quaternary ammonium salt anion exchange resin in lithium hydroxide monohydrate at 30; for 4 h;Inert atmosphere;Temperature;

Steps:

1-19 Specific Example 19:

Adding absolute ethanol and ethyl acrylate to a 2-liter four-necked flask and before Example 19A total of 1500 grams of the fraction of anhydrous ethanol: ethyl acrylate, controlled temperature of 30 degrees ± 2 degrees, added to the catalyst of Example 18, stirring, rotating at a speed of not more than 120 rpm, the catalyst suspension dispersion is uniform, after 4 hours of reaction, Stirring was stopped, the catalyst was filtered off, and the ethyl acrylate content in the filtrate was determined to be 0.5%.The filtrate is added to the column of the rectification column, heated, and slowly rectified between 74-165 degrees to remove the ethanol and ethyl acrylate and a small amount of the forward fraction of ethyl 3-ethoxypropionate.99% of the product was collected with a yield of 98%.The catalyst is regenerated by recycling to the ethyl acrylate reaction until the end point content is above 1%.

References:

CN108569965,2018,A Location in patent:Paragraph 0042-0050

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