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Tryptamine and formaline at room temperature
Primary amines can trimerize with formaldehyde into a sixmembered ring, hexahydro-1,3,5-triazines. U ...
15-3-2019 at 23:13
by: Bronstein
Synthesis of an omega-nitrostyrene
I have done this synthesis with nitromethane, and it did indeed crystallize almost immediately as I ...
10-3-2015 at 00:05
by: Bronstein
The trouble with Buchner funnels
I find that when I filter a something which is in a nonpolar solvent, the filter paper will stick ve ...
30-12-2013 at 13:16
by: Bronstein
Synthesis of cyclohexylamine (via FR971429)
Sorry for digging up this old thread, but I just had to ask something I didn't notice before.

Did ...
6-8-2013 at 10:41
by: Bronstein
dihydrojoubertiamine synthesis
Perhaps something like this would work?
(My chemistry program crashed while exporting this so some ...
12-7-2013 at 01:16
by: Bronstein
The short questions thread (3)
Does anyone know where to find the melting point for 2,4-dimethoxyphenethylamine hydrochloride? I ca ...
8-1-2013 at 00:05
by: Bronstein
Zinc reduction for 2C-H from nitrostyrene
I was thinking about using this procedure to reduce another nitrostyrene and I thought what smuv wro ...
11-12-2012 at 14:04
by: Bronstein
Reduction with preciptated nickel/water
Yeah, the authors themselves mention that preciptated nickel by this method always contains Ni, Zn, ...
24-8-2012 at 00:23
by: Bronstein
Reduction with preciptated nickel/water
I was reading up on urushibara nickel the other day in the book New hydrogenating catalysts (1971). ...
20-8-2012 at 23:33
by: Bronstein
Metal/acid reduction of benzoin
If hydrobenzoin is produced, I guess it would be possible to rearrange it with acid, in a pinacol-li ...
1-7-2012 at 04:09
by: Bronstein
cheap 0.01g and 0.001g scales from Ebay
This scale looks like it's much better than those cheap scales from china:

http://www.ebay.co.uk/ ...
23-6-2012 at 11:28
by: Bronstein
Metal/acid reduction of benzoin
I have too considered trying to reduce benzoin to desoxybenzoin sometime. I found this procedure wit ...
9-6-2012 at 06:14
by: Bronstein
2,5-dimethoxynitrostyrene with wrong mp
[quote]
If you get nice orange needles, I wouldn't bother too much.

PS: Recrystallization from 5 ...
15-5-2012 at 08:04
by: Bronstein
2,5-dimethoxynitrostyrene with wrong mp
Hi,

I made some presumed 2,5-dimethoxynitrostyrene by condensing 2,5-dimethoxybenzaldehyde with n ...
13-5-2012 at 03:06
by: Bronstein
benzoin
If anyone is interested, I have tried the benzoin condensation with thiamine as catalyst, following ...
5-3-2012 at 10:51
by: Bronstein
Drying agent for epoxide
I have been searching for information on what is a suitable drying agent for an epoxide but found no ...
22-1-2012 at 13:56
by: Bronstein
Chlorination of benzilic acid
Hi!

Is it possible to chlorinate benzilic acid to diphenylchloroacetic acid (2-chloro-2,2-dipheny ...
26-4-2011 at 03:41
by: Bronstein
lefetamine
Actually it would be pretty interesting to read the original paper on Lefetamine. The reference is ...
29-1-2010 at 11:06
by: Bronstein
Molecular sieves
I read in one place that you must stir a liquid with molecular sieves in it very gently so that the ...
11-11-2009 at 13:47
by: Bronstein
new phenethylamine?
Take a look at J. Med. Chem 4: 51 (1961) and you will find the compound your looking for.
2-4-2009 at 11:00
by: Bronstein
DMF in Leuckart reaction?
In Organic Reactions volume 5 there is a review on the leuckart reaction (I think there is a scan of ...
31-10-2008 at 13:26
by: Bronstein
4-ethoxy-3-methoxybenzaldehyde from vanillin
Well, I tried this one more time, this time after I filtered the crystals I put them into 40ml 5% Na ...
1-7-2008 at 12:25
by: Bronstein
4-ethoxy-3-methoxybenzaldehyde from vanillin
Ok, so a tiny sample was placed in ~1ml 5% NaOH and swirled about for a bit. It was very hard to jud ...
5-6-2008 at 09:38
by: Bronstein
4-ethoxy-3-methoxybenzaldehyde from vanillin
Ok, I did a melting point test. I put a small sample in a tiny test tube and put a termometer in it. ...
4-6-2008 at 04:45
by: Bronstein
4-ethoxy-3-methoxybenzaldehyde from vanillin
[quote][i]Originally posted by Klute[/i]
My suggestion would be washing the crude product with dilu ...
3-6-2008 at 14:51
by: Bronstein
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