ChemicalBook CAS DataBase List Pentaerythritol Tetra(3-mercaptopropionate)

Pentaerythritol Tetra(3-mercaptopropionate) synthesis

4synthesis methods

Product Name:Pentaerythritol Tetra(3-mercaptopropionate)
CAS Number:7575-23-7
Molecular formula:C17H28O8S4
Molecular Weight:488.66

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2935-90-2 Synthesis

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Pentaerythritol Tetra(3-mercaptopropionate)

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Yield:7575-23-7 473 g

Reaction Conditions:

with methanesulfonic acid at 80 - 85; for 6 h;Temperature;

Steps:

1-5 Example 1

To a 1000 mL four-necked flask equipped with a glass stirrer, thermometer and negative pressure condensation system was added 480 g of methyl mercaptopropionate,136g of pentaerythritol,6.16g of methanesulfonic acid,Start stirring and use a heating mantle to raise the temperature to 80-85 ° C.Turn on the vacuum system and control the vacuum level below -0.06MPa to start the reaction.After 6 hours of reaction, samples were taken and tested, and the reaction was stopped when the mass fraction of the raw material methyl mercaptopropionate was ≤0.1%After the reaction, 488 g of a sodium carbonate solution with a mass fraction of 2% was added to the crude product for stirring and alkaline washing.After the alkaline washing is completed, the crude product is separated and washed with 1 times of ultrapure water.After the completion of the crude product, residual water and unreacted methyl mercaptopropionate were removed by heating and negative pressure.473 g of pentaerythritol tetra-3-mercaptopropionate was obtained with a purity of 99.50% by weight.

References:

CN110845376,2020,A Location in patent:Paragraph 0020-0031

115-77-5
6 suppliers
$10.00/10g