Synthesis of Dehydrozingerone

Dissolve 5 g of vanillin in 20 mL of acetone, dissolve 2 g of sodium hydroxide in 20 mL of cold water and slowly pour it to the solution. After the solution becomes dark stir it for 48 h and pour 100 mL of 10 % HCI to it with stirring. Stir for 10 minutes and filter, wash with 50 mL of water and crystallize in hot ethanol.

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29yrub6

The solution gradually darkens

1onevl

The solution needs to be stirred for 48h

100_0119p

Addition of the HCl

Filtration

Washing with water

100_0134p

The recrystallized product

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