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Author: Subject: TEA from DMF?
resveratrol
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[*] posted on 6-11-2010 at 17:28
TEA from DMF?


Hi,

I have some old DMF which reeks of triethylamine - I was hoping to distill the TEA off for later use as a proton scavenger. I figured there would be no issue with this, but as I am unsure of the mechanism for degradation of DMF, I figured I'd ask to make sure that there is nothing I'm overlooking, like possibly the TEA abstracting protons prior to collection? - rendering it useless. Any issues here?

Thanks
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not_important
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[*] posted on 6-11-2010 at 18:54


Let us see

Me2NCOH => Et3N

not very likely, lengthening carbon chains by CH2 for starters. I'd suspect dimethyl amine as the main portion of the odor.
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Ozone
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[*] posted on 6-11-2010 at 19:14


It is most likely dimethylamine*, a common (and often problematic) contaminant in DMF.

Cheers,

O3

* oops, see below.

[Edited on 7-11-2010 by Ozone]




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Methansaeuretier
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[*] posted on 6-11-2010 at 19:31


Quote: Originally posted by Ozone  
It is most likely diethylamine, a common (and often problematic) contaminant in DMF.

Cheers,

O3

It's dimethylamine!
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resveratrol
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[*] posted on 7-11-2010 at 06:54


Quote: Originally posted by not_important  
Let us see

Me2NCOH => Et3N

not very likely, lengthening carbon chains by CH2 for starters. I'd suspect dimethyl amine as the main portion of the odor.


i guess i remember reading somewhere that TEA was a major breakdown product of DMF...i didn't know how/why, but you bring up a good point =p thanks.
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smuv
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[*] posted on 7-11-2010 at 12:58


LAH



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