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Author Topic: resorcinol  (Read 125 times)

Alchemist

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resorcinol
« on: February 08, 2010, 09:26:39 PM »
Hello all,

I need some resorcinol. Yes I could buy it, but it is pretty expensive. Does anyone know of a fairly OTC prep for it.

Thanks, the Alchemist.....

Vesp

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Re: resorcinol
« Reply #1 on: February 08, 2010, 11:58:12 PM »
It is obtained on fusing many resins (galbanum, asafoetida, etc.) with potassium hydroxide, or by the distillation of Brazilwood extract. It may be prepared synthetically by fusing 3-iodophenol, phenol-3-sulfonic acid or benzene-1,3-disulfonic acid with potassium carbonate; by the action of nitrous acid on 3-aminophenol; or by the action of 10% hydrochloric acid on 1,3-diaminobenzene[2]. Many ortho- and para-compounds of the aromatic series (for example, the bromophenols, benzene-para-disulfonic acid) also yield resorcinol on fusion with potassium hydroxide. ---- http://en.wikipedia.org/wiki/Resorcinol#Production

Any of those possible?
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Alchemist

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Re: resorcinol
« Reply #2 on: February 09, 2010, 03:48:53 PM »
Thanks Vesp,

Maybe acetaminophen to p-aminophenol (4-aminophenol) then nitrous. I don't know though, will 4-aminophenol produce something else like catechol and only the 3 position works for resorcinol ?

I am still looking for some otc starting compounds. Will keep ya posted.

Thanks for the input and keep up the great work.

The Alchemist.....

lugh

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Re: resorcinol
« Reply #3 on: February 11, 2010, 03:37:58 AM »
A recent synthesis was published in Tetrahedron Letters, 35, p. 8727, 1994  ;)
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