01-09-03 09:34
No 396705
SWIM was thinking of making bromovanillin using oxone and NaBr. Under one of chromic's threads oxone is used to make Br2. SWIM's wondering if this could be done in one pot.
ie.
vanillin and oxone, and NaBr are placed in a Methanol solution. Would SWIM be able to get bromovanillin?
also what would the bp of bromovanillin, hydroxyvanillin and 3,4,5-tmba be?
(SWIM's planning on distillation after each rxn step.)
thx.
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everything posted above is completely 100% fictional.
(Chief Bee)
01-09-03 09:58
No 396709
5-Bromovanillin, mp 164°C (No bp listed in beilstein)
5-Hydroxyvanillin, mp 132°C (No bp listed in beilstein)
3,4,5-Trimethoxybenzaldehyde, mp 77°C
3,4,5-Trimethoxybenzaldehyde, bp 163-165°C/10mmHg, 158-161°C/7-8mmHg, 148-151°C/5mmHg, 136-138°C/4mmHg, 130°C/0.5mmHg
(Stranger)
01-09-03 11:17
No 396723
how would one go about seperating the bromovanillin from the rest of products that will form from the reaction?
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everything posted above is completely 100% fictional.
(Chief Bee)
01-09-03 15:35
No 396776
Have you even read this: ../rhodium /mmda.me
(Stranger)
01-09-03 16:40
No 396794
yeah I have, although I'm not sure if I want to work with Br2 in gas form.
I was planning on making the gas via NaBr H2SO4 then H2O2 if I could do it in solution and without the need for GAA (expensive) I'd prefer that route.
everything posted above is completely 100% fictional.
(Chief Bee)
01-09-03 18:10
No 396821
Br2 is not a gas, and what I was referring to was that the document contains explicit directions for purification if all the intermediates. You will also find a whole bunch of posts on this issue using the search engine.
(Stranger)
01-09-03 20:29
No 396852
wow, I truely need to do a lot more studying before I attemp the synth, everything is theory right now (I'm not a chemist, currently a student). but thanks, I'll look into the purification, I actually have it saved.
Thank for the help Rhodium.
everything posted above is completely 100% fictional.
(Hive Addict)
01-10-03 07:12
No 396945
Hey LiquidGaia, if you have specific questions to ask, you can feel free to ask aurelius in a pm.