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1,3-DCP


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#1 Cheisenberg

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Posted 3 January 2017 - 08:36 AM

Hi everyone. I have a problem and question for you. I'm working on some organic synthesis and end of the synthesis, I have undesired product which is 1,3-dichloropropanol. How can I remove this chemical. I have tried evaporation but this is not feasible because this need very much energy. If you help me, I will be pleasure :)
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#2 hypervalent_iodine

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Posted 3 January 2017 - 04:55 PM

Could you possibly give some more detail on the desired product? Why is the energy requirement for evaporation too high?
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#3 Cheisenberg

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Posted 3 January 2017 - 09:13 PM

Desired product is chlorohydroxypropyl ammoniumchloride which is made by reaction epichlorohydrin and trimethylamine hydrochloride. 1,3-DCP is undesired byproduct. And to remove is dificult because its boiling point is 174C. I tried some resins to remove but it didnt work.
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#4 hypervalent_iodine

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Posted 4 January 2017 - 12:56 AM

Desired product is chlorohydroxypropyl ammoniumchloride which is made by reaction epichlorohydrin and trimethylamine hydrochloride. 1,3-DCP is undesired byproduct. And to remove is dificult because its boiling point is 174C. I tried some resins to remove but it didnt work.


Do you have access to a controlled vacuum? You could vacuum distill the DCP off with mild heating. Strange that ion exchange resins didn't work though. What were you using?
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#5 Cheisenberg

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Posted 4 January 2017 - 05:22 AM

Yes we tried vacumm distilation, it works, but it spends much time. And we tried resin, dcp decreased to 2000ppm from 10000ppm. But there is a problem that active matter decrease to.
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