andyloris
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N,N'-dimethyl ethylenediamine
Hi,
I am planning the synthesis of an interesting copper complex (paper attached, the procedure is at the bottom of the 3rd page).
It needs N,N'-dimethyl ethylenediamine, also known as DMEDA. I am thinking I could make it from ethylene glycol and dimethylurea, but I am not sure
the reaction would work.
It also seems expensive to buy. Has anyone got another route to source it ?
Thanks in advance !
Attachment: s1600536811025682.pdf (708kB)
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Always trust your first idea, especially if you only have one.
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DraconicAcid
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The diamine is only needed as a counterion, so why not make it with a different one? The potassium salt, at least, is very easily made and
crystallizes nicely.
Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
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RustyShackleford
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I think it could work, i did the glycol+ urea reaction to make ethylenediamine successfully, although i have to say its really not an easy, pleasant
or efficient way to make it. I posted about it here: https://www.sciencemadness.org/talk/viewthread.php?tid=15675... .
I think a better route would be to use the process i did optimized for ethyleneurea (details in the paper in thread i linked), methylate that with
formalin and formic acid and finally hydrolyse. the methylation is described in this patent: US4864026
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andyloris
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@DraconicAcid I already made the sodium salt, but I want to try this specific salt as it is soluble in methanol, and growing crystals seems easier.
@RustyShackleford I don't have formalin (it is hard to find), so I am gonna try the route with MeNH2...
Always trust your first idea, especially if you only have one.
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