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Christmas Comes Early This Year
Sauron, are the model references marked anywhere on your equipement? Indeed the number KRV 65/45 was ...
10-11-2008 at 06:18
by: Klute
Acetonitrile form Ammonium acetate
Of course, logical. :)

but P2O5 usually isn't very expensive or hard to find? Well it's not in ee ...
10-11-2008 at 05:50
by: Klute
Acetonitrile form Ammonium acetate
Why not prepare it fresh with P2O5? You woul dbe sure of how dry it is :)
9-11-2008 at 11:33
by: Klute
Christmas Comes Early This Year
Beautifull, very impressive equipement! Chemporn at it's best ;)

Funny, the 2 old Buchis look alo ...
9-11-2008 at 11:25
by: Klute
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
bromoethane from ethanol and NaBr/H2SO4, and sodium ethoxide possibly from NaOH/EtOH/Toluene azeotro ...
9-11-2008 at 11:19
by: Klute
How do I make a sodium hydroxide solution from caustic soda?
The proper procedure would be to gradually add NaOH pellets to a very well stirred, cooled volume of ...
8-11-2008 at 16:53
by: Klute
Polylactic acid hydrolysis to lactic acid?
I think acid hydrolysis would require extended reflux (+24h) with a large excess of acid to open up ...
7-11-2008 at 14:47
by: Klute
pH probe for toluene
I remember some debate here (i think) on this issue, i think the bottom end was that pH-electrodes c ...
7-11-2008 at 01:17
by: Klute
DCM/CHCl3/CCl4 waste
You do not have to be afraid of over pressure in glass bottle with DCM.... The pressure will never ...
6-11-2008 at 14:54
by: Klute
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Btw, have you tried forming the thiol via hydrolysis of the thiosulfate adduct? That would indeed be ...
6-11-2008 at 14:09
by: Klute
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Duff formylation of indoles using AcOH:

[b]Acylation of Indoles by 5uff Reaction and Vilsmeier-Ha ...
6-11-2008 at 06:43
by: Klute
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
[b]A One- Step Synthesis of 5-Hydroxy-1,3-benzoxathiol-2-ones[/b]
P. T. S. Lau, M. Kestner
J. Org. ...
6-11-2008 at 06:12
by: Klute
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Some article son the thiolation:

[b]Reaction of Quinones with Thiourea.
A Novel Route to 2-Amino ...
6-11-2008 at 06:09
by: Klute
Mg-mediated o-formylation of phenols: A Writeup
My pleasure!
5-11-2008 at 22:13
by: Klute
chemiluminescence!!
Thank you very much! Indeed a very complete and informative paper!
5-11-2008 at 14:48
by: Klute
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Beautifull work!!!!

This is really an incredible advance, the thiolation is very very neat! no ...
5-11-2008 at 14:23
by: Klute
Tour My Lab
Why do you think so many reactions have german names?! ;)
4-11-2008 at 23:51
by: Klute
Christmas Comes Early This Year
Oh you lucky person! I would have liked to witness the reception :D

Now that my dream of having a ...
4-11-2008 at 23:48
by: Klute
Reductive amination using Ammonium Sulfate
I don't think you can use anything but NaBH3CN, there is some similar work using ammonium acetate in ...
4-11-2008 at 23:43
by: Klute
Inorganic Phosphorus Transformations
Maybe methylating trimethylamine with dimethylsulfite? Or using SO2Cl2 in a way or an other (althoug ...
4-11-2008 at 16:06
by: Klute
purifying toluene properly
Indeed, simple distn or even CaSO4 would not be enough for anionic polymerisations... and you would ...
4-11-2008 at 15:53
by: Klute
The short questions thread (1)
espacenet.com?

Thilo has only one patent in 1960 on dichlorophosphoric esters... I didn't see an ...
4-11-2008 at 06:07
by: Klute
Inorganic Phosphorus Transformations
How do they form tetramethylammonium sulfate? Heating dimethylsulfate with excess trimethylamine? Wo ...
4-11-2008 at 05:58
by: Klute
purifying toluene properly
If you dismiss the first 1/4 or so, you will have around 10-20 ppm I think, which is more than enoug ...
4-11-2008 at 05:51
by: Klute
The short questions thread (1)
Maybe some kind of low melting alloy? I think such mixtures used to used a long time ago.. is this a ...
3-11-2008 at 13:40
by: Klute
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