Organic Chemistry - Borohydride reduction of Vanillin to Vanillyl Alcohol?

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03-07-2008, 08:01 PM

suburbanpostmodernism

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Organic Chemistry - Borohydride reduction of Vanillin to Vanillyl Alcohol?

This question regards the solubility of vanillin. I came across a procedure (professionally made with detailed explanations of reactions - probably not wrong) for the reduction of the aldehyde group of vanillin to an alcohol.

The first step is to dissolve .4 grams of vanillin in 2.5 mL of a 1 M NaOH solution.

I looked up the solubility of vanillin in water and it's listed as 1 gram per 100 grams of solvent at 25 C. (The procedure directions are carried out at room temperature.)

My question is this...
If 1 gram of vanillin is soluble in 100 mL of water, how could you possibly dissolve 0.4 grams in 2.5 mL of an aqueous solution?

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