GreenD
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Oxidizing amines
This has bugged me since I was looking at decarboxylating tryptophan and its come up again!
p-phenyldiamine is used in hair dyes - it is colorless in its unoxidized state, but on absorption into the hair it readily oxidizes (have too look up
if the hair is some kind of catalyst).
http://en.wikipedia.org/wiki/P-Phenylenediamine
What, then, is the product of oxidized p-phenyldiamine, or any amines? I don't understand that... Would the salt be an oxidation state?
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GreenD
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WOW!
Quite the far cry from what I was thinking, check out the first structure on this paper if you're interested.
http://journal.scconline.org/pdf/cc1968/cc019n06/p00411-p004...
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Adas
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Even phenol oxidizes in the presence of air, IDK how it is possible, but the light-violet color is nice 
Rest In Pieces!
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