ChemistryGhost
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3,4-methylenedioxybenzoic acid to 3,4-methylenedioxybenzene?
Hi. I wonder if there's anything on this. Maybe a decarboxylation would work. Any articles? Thoughts? I know you can just get
3,4-methylenedioxybenzene from catechol, but I want to know if there's a way to get there from 3,4-methylenedioxybenzoic acid.
"Imagination is more important than knowledge" ~Einstein
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kristofvagyok
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Your signature there is a really important thing: "Imagination is more important than knowledge" ~Einstein"
In this case you have very-very limited knowledge from what do you want to do, mainly because there is absolutely no 3,4-methylenedioxybenzene
existing. There is methylenedioxybenzene, also described as 1,2-methylenedioxybenzene, but not 3,4-methylenedioxybenzene.
And yes, it could be made easily by mixing it with sodium-hydroxide and dry distill it, also called decarboxylation. Search for "benzene from benzoic
acid".
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Organikum
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Quote: Originally posted by kristofvagyok  | Your signature there is a really important thing: "Imagination is more important than knowledge" ~Einstein"
In this case you have very-very limited knowledge from what do you want to do, mainly because there is absolutely no 3,4-methylenedioxybenzene
existing. There is methylenedioxybenzene, also described as 1,2-methylenedioxybenzene, but not 3,4-methylenedioxybenzene.
And yes, it could be made easily by mixing it with sodium-hydroxide and dry distill it, also called decarboxylation. Search for "benzene from benzoic
acid". |
I was always under the impression that the MD bridge wont stand such a treatment. But if it does, then it might survive the dry distillation of
MD-phenylacetic acid with lead acetate (or iron) too, vacuum and inert gas flow is understood. This was declared to be impossible though I dont think
anybody ever tried it. What do you think?
/ORG
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kristofvagyok
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I've done a few aromatic decarboxylations and I have really good experiences with them. I have never worked with methylenedioxy compounds under those
conditions but ethylenedioxy bridge always survived the decarb.(:
Also a really good method what I often use: dissolve 2eqv. potassium hydroxide in glycerol, heat it up to boiling point and add the carboxylic
acid/ester/amide in small portions, reflux for 2hours, pour it on water, extract with ether and be happy with the product.
I have a blog where I post my pictures from my work: http://labphoto.tumblr.com/
-Pictures from chemistry, check it out(:
"You can’t become a chemist and expect to live forever." |
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