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ChemicalBook CAS DataBase List Vanillylacetone

Vanillylacetone synthesis

9synthesis methods
By condensation of vanillin with acetone followed by hydrogenation.
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Yield:122-48-5 87%

Reaction Conditions:

with palladium on activated charcoal;hydrogen;acetic acid in ethanol at 20; under 760.051 Torr;

Steps:

1

38.44 g of 4-(4-hydroxy-3-methoxyphenyl)-3-ene-2-butanone was dissolved in 500 mL of ethanol.Add 500 mL of acetic acid with stirring, and add 1.92 g of Pd/C.After the hydrogen balloon was placed, the gas was exchanged three times, and after reacting at room temperature for 1 hour,Filtration, the filtrate was evaporated to ethanol, water was added, and then extracted with ethyl acetate.The liquid phase was separated, and the organic phase was washed with a saturated NaHCO 3 solution and water, respectively.The solvent is removed by pressure reduction and separated by column chromatography.Obtained a colorless liquid of 31.07g,The yield was 87%.

References:

CN108191625,2018,A Location in patent:Paragraph 0029; 0034; 0036

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