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Topic: removal of pyridine  (Read 3565 times)

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Offline magos

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removal of pyridine
« on: April 07, 2015, 03:24:24 AM »
in my compound there is a tetriary amine. and mp 61-62oC
i want to remove pyridine from the reaction mixture without chromatography
Any ideas?
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Offline Dan

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Re: removal of pyridine
« Reply #1 on: April 07, 2015, 04:30:06 AM »
Have you checked the boiling point of pyridine?
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Offline magos

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Re: removal of pyridine
« Reply #2 on: April 07, 2015, 04:36:59 AM »
yes is 115oC
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Offline magos

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Re: removal of pyridine
« Reply #3 on: April 07, 2015, 04:52:07 AM »
is co-evaporation with toluene good idea?
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Offline Dan

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Re: removal of pyridine
« Reply #4 on: April 07, 2015, 05:14:20 AM »
Quote from: magos on April 07, 2015, 04:52:07 AM
is co-evaporation with toluene good idea?

You can check here.
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Offline magos

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Re: removal of pyridine
« Reply #5 on: April 07, 2015, 07:12:59 AM »
Thank you very much :)
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Offline PRIANKAJ

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Re: removal of pyridine
« Reply #6 on: April 08, 2015, 03:57:44 AM »
Pyridine will form hydrochloride salt more easily rather then tertiary amine. If you add one equivalent of HCl. pyridine hydrochloride Will be formed and it can be removed by water washing.
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