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Author: Subject: Nitration Video
DraconicAcid
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[*] posted on 1-3-2021 at 09:16
Nitration Video


https://www.youtube.com/watch?v=bnNt89dELfQ

I've had to make a bunch of videos for my students' experiments (because they can only come in to do half of them, due to COVID). I thought this one might be good enough to share (despite the slip-up where I said nitric instead of sulphuric).

PS- no slight against you guys about the "not for amateurs" disclaimer. Just covering my legal butt.

[Edited on 1-3-2021 by DraconicAcid]




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Fery
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[*] posted on 1-3-2021 at 09:56


Beautiful video, thx for sharing. I've never performed this nitration. I see you used methylester of benzoic acid. Couldn't be benzoic acid nitrated directly? Does the methylbenzoate offer better yield or purer m- isomer product with less o- and p- nitro isomers contamination?
here I found that keeping T very cold as you did prevents o- sideproduct to form, but this is nitration of benzoic acid, not its methylester:
https://chemlab.truman.edu/files/2015/07/Multi-2-Nitration-o...




If there is a heaven, it seems not to be materially based. Does chemistry exist there and if yes, how does it look like? Are there good souls well supplied with laboratory equipment, glass, chemicals and information?
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DraconicAcid
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[*] posted on 1-3-2021 at 10:04


I was following this prep: http://www.orgsyn.org/demo.aspx?prep=CV1P0372

The same authors give this: http://www.orgsyn.org/demo.aspx?prep=CV1P0391

Perhaps the original paper gives a reason that this might be preferred to direct nitration of benzoic acid.




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