Stick that TBDMS on Monday and helplessly flailing around, looking for a way to get your alcohol back? Have a little TBAF:
TBAF is one of the most common sources of fluoride ion for silyl deprotection. You usually get a 1M solution in THF with a little water, too. It can be a pain to get rid of when you're not working with big, greasy, drug-like molecules and you're working with water-soluble molecules like RNA.
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The fluoride ion is important to synthetic chemistry, often because it can be used to cleave silyl ethers (the silicon analogue of a carbon ether). Fluoride is notorious for holding onto water (like any tiny ion - lithium is about as bad), so even an "anhydrous" solution of TBAF in (say) THF will…
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Takin' off that TBDMS? TBAF isn't your only choice:
TEA.(HF)3 is another source of the fluoride ion. Neat TEA-HF3 is a liquid, so it's about 10 M vs typical 1 M TBAF. A little nastier than TBAF, since it's able to liberate HF.