Chemical Forums
Chemistry Forums for Students => Organic Chemistry Forum => Topic started by: faust on October 29, 2005, 05:22:30 AM
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Hello,
I have a little problem.
You can see my reaction on the following picture.
i'm sure of the structure of my reactant. So I heated during one night my ester in an EtOH/NaOH solution. Then I added HCl and a I got a withe solid which I suspect is my acid be cause it is only soluble in a KOH solution.
But I have some problem in NMR... how can I dissolve this acid? I tryed CDCl3, CD3OD, D2O and it is only slightly soluble in DMSO... but the NMR 500 MHz see nothing except the DMSO signal...
So , if you have an idea... you're welcome!
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Try to use a deuteriated solvent with both polar and aromatic ends.
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Get a mass spec. as well, so you don't waste your NMR time.
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Thank you very much!
You're may be right... I hope this is my final acid which precipited...
I'll send a mass spec form tomorow
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You might also try deuterated acetonitrile or pyridine. Both are pretty expensive, so far as deuterated solvents go, but they are actually really nice NMR solvents.