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Author: Subject: 2-hydroxy-5-methoxybenzaldehyde from 4-methoxyphenol

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[*] posted on 1-8-2012 at 12:33
2-hydroxy-5-methoxybenzaldehyde from 4-methoxyphenol

What purity/grade NaOH is suitable for this reaction (Reimer Tillman formylation)? Reagent grade is available, however it would be nice to know if hardware lye is sufficient for this reaction. 2-hydroxy-5-methoxybenzaldehyde will be further methylated to 2,5-dimethoxybenzaldehyde. I would like to know if this conversion is tolerable to impurities from lower grade NaOH.
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[*] posted on 1-8-2012 at 12:42

The hardwarestore lye I get is 99.9% pure NaOH, which is pretty pure.

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