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SOCl2: carboxylic acid to acid chloride: impurity!
Imp. R-SSO3H is purified by column cromatography and confirmed by NMR. 		23-1-2013 at 08:07
by: Nernst
SOCl2: carboxylic acid to acid chloride: impurity!
The reaction temperature is not allowed to get hotter than +/- 70°C for a maximum running time of 2 ...		 23-1-2013 at 06:57
by: Nernst
SOCl2: carboxylic acid to acid chloride: impurity!
Refluxing the chloroform for the removal of SO2 and HCl gasses drives the formation of the acid chlo ...		 23-1-2013 at 02:13
by: Nernst
SOCl2: carboxylic acid to acid chloride: impurity!
For a synthesis I'm performing at the moment, I keep getting an impurity where I can not describe th ...		 22-1-2013 at 08:14
by: Nernst
Tartrazine and other azodyes
If you want to I can post the total synthesis of tartrazine (4 steps)

1. Diëthyloxalacetate
2. ...		 11-3-2010 at 11:02
by: Nernst
Ozonelabs- Synthesis of Methyl Orange
Nice clear write-up!

[rquote=158828&tid=12594&author=Ozonelabs]We are exploring azo-dyes. ...		 29-7-2009 at 04:19
by: Nernst
Mannich reaction with enolizable aldehydes
The Mannich reaction as I know it, is a 3 component reaction:

1. a secondary amine (primary gives ...		 17-6-2009 at 09:35
by: Nernst
Mannich reaction
I'm performing a mannich reaction and therefore I have to place dimethylamine.HCl and paraformaldehy ...		 15-2-2009 at 08:10
by: Nernst
Controlled Lab Reactor (CLR)
I keep dreaming about having my own controlled lab reactor. I, like mostly everybody here on the boa ...		 3-12-2008 at 05:27
by: Nernst
Synthesis of Tartrazine and Allura Red AC
I would love to report my results en post the procedure with pictures but I'm stuck with finding the ...		 7-10-2008 at 11:11
by: Nernst
Synthesis of Tartrazine and Allura Red AC
Klute, you're the best! I think I'm gonna have a nice coffee and read, read, read.... 		5-10-2008 at 10:50
by: Nernst
Synthesis of Tartrazine and Allura Red AC
Oh, they haven't payed their bill. I've read on the site that the site was going to another server.. ...		 5-10-2008 at 06:14
by: Nernst
Synthesis of Tartrazine and Allura Red AC
Hello,

as a short member but long viewer of this genious forum, I'm pretty sure I'm finaly gonna ...		 4-10-2008 at 15:19
by: Nernst

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