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Author: Subject: Aqueous TBAF Deprotection of Alcohols
hstraley
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[*] posted on 25-7-2016 at 21:41
Aqueous TBAF Deprotection of Alcohols


Anybody have any recommendations for using TBAF as a solution in water as a means of deprotecting silyl groups to form the alcohol? It's cheaper, and would be nice to use instead of the 1M solution in THF.
Thanks!
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Metacelsus
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[*] posted on 26-7-2016 at 05:04


If your compound is water-soluble, you might as well use ammonium fluoride (or another inorganic fluoride). I've run deprotections of TMS-alkynes with saturated KF in methanol, and those conditions might also work for alcohols.



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Dr.Bob
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[*] posted on 26-7-2016 at 18:45


Just remember that TBAF in water is quite basic, and may react with other groups. If it is TMS, it will come off with anything, if TBDMS then it take more work.
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