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Topic: methoxylation of 5-HO-indoles  (Read 5740 times)

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Offline limpet chicken

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methoxylation of 5-HO-indoles
« on: September 09, 2005, 11:48:20 AM »
Does anyone happen to have any refs for proecdures involving methoxylation of a 5-position hydroxy group on an indole ring?

I am contemplating the use of methanolic sodium ethoxide, any better ideas?
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Re:methoxylation of 5-HO-indoles
« Reply #1 on: September 09, 2005, 02:04:12 PM »
Starting from 5-hydroxy indole?  Methanol won't work for that.  You need something like methyl iodide or dimethyl sulfate.

Offline limpet chicken

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Re:methoxylation of 5-HO-indoles
« Reply #2 on: September 09, 2005, 06:01:29 PM »
I was actually after methoxylation, not methylation, MeI cannot possibly do that, did you MEAN to use MeI/di-MeSO4.

I am actually working with tryptamines, rather than indole itself, as the tryptamines are more available (serotonin, melatonin, mexamine,), indole itself is a b$*%( to actually come by these days.

I wanted to prepare mexamine (5-MeO-T), starting from serotonin, and perhaps prepare melatonin from the formed mexamine, although I could always buy melatonin, and decarboxylate it with CaO/NaOH to yield mexamine.  


 
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