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ChemicalBook CAS DataBase List Diphenolic acid
126-00-1

Diphenolic acid synthesis

5synthesis methods
Diphenolic acid (DPA) can be made by the condensation reaction of levulinic acid with phenol in the presence of acid catalysts.
Synthesis of diphenolic acid from levulinic acid
Synthesis of diphenolic acid from levulinic acid
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Yield:126-00-1 89.2%

Reaction Conditions:

with 3-(sulfobutyl)-5-methyl-2-mercapto-1,3,4-thiadiazole-3-mercaptopropane sulfonate at 60; for 12 h;

Steps:

5 Example 5

Add 0.01mol (1.16g) levulinic acid, 0.06mol (5.65g) phenol, 0.004mol (1.70g) 3-(sulfobutyl)-5-methyl-2-mercapto-1,3, 4-thiadiazole-3-mercaptopropane sulfonate was added to a 25 mL round bottom flask, and the reaction was stirred at 60° C. for 12 h. Through liquid chromatography analysis, the yield of bisphenol valeric acid was 89.2%, and the selectivity of bisphenol valeric acid was 97.6%.

References:

CN113248441,2021,A Location in patent:Paragraph 0060-0061

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