dormouse (Member)
04-21-00 00:34
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      Tetrabutylammonium chloride--->bromide anyone? -Ritter  Bookmark   

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Author  Topic:   Tetrabutylammonium chloride--->bromide anyone? 
Member   posted 06-26-98 01:00 PM          
Does anyone know if tetrabutylammonium chloride can be converted to tetrabutylammonium bromide by, say, refluxing it in HBr acid? If not is there another way?

Cherrie Baby
Member   posted 06-28-98 08:07 AM          
You shouldn't need to convert TBAC to TBABr. TBAC will substitute for TBABr in just about all cases. PTCs normally transport anions into an organic phase - so during a PTC reaction the Br- anion will be substituted by the anion which is being transported.
Yes - If you refluxed TBAC with xs HBr [or even NaBr] then this would convert to TBABr. But remember these quarternary ammonium salts are hygroscopic. They have a tendency to absorb water from the atmosphere. It is difficult to remove all water from them when trying to separate them from water.

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