Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Search
[Next Page]
UV lamp for TLC
Those aquarium lamp would be just perfect. But a cheaper options are the "eprom erasers" sold in inf ...
3-6-2008 at 18:12
by: Klute
4-ethoxy-3-methoxybenzaldehyde from vanillin
EtBr is a very efficient alkyl halide! As Nicodem pointed out in Painkilla's thread, the differenc e ...
3-6-2008 at 17:53
by: Klute
References nomenclature
I have a doubt concerning the way of writing a reference to an article: is it the issue or the volum ...
3-6-2008 at 16:57
by: Klute
4-ethoxy-3-methoxybenzaldehyde from vanillin
I would suggest at least one recrystallization of your end product, as usually during these kind of ...
3-6-2008 at 16:09
by: Klute
4-ethoxy-3-methoxybenzaldehyde from vanillin
Nice! Thank you for sharing!

My suggestion would be washing the crude product with dilute (1- ...
3-6-2008 at 14:25
by: Klute
thionyl chloride and alcohols
Thank you for posting the spectrum, very interesting.

What could be worth a try is doing the rea ...
3-6-2008 at 02:40
by: Klute
thionyl chloride and alcohols
Localpanreac agent in Thailand? I'm impressed! i didn't think it was such abig company. I thought it ...
3-6-2008 at 02:04
by: Klute
Metal passivation prevention?
What was the anolyte? I would think if you used dilute acid there wouldn't be any pasivation. Or jus ...
2-6-2008 at 23:56
by: Klute
Yes You Can Make Your Own TCT - If You Dare!
In some insatnce you can't use PCl5 for chlorinations, if you product has the same bp as POCl3 for e ...
2-6-2008 at 23:45
by: Klute
thionyl chloride and alcohols
Without wanting to go too offt opic, try localdistributors, they will ahev most acros, alfa aesar, F ...
2-6-2008 at 23:38
by: Klute
TEMPO substitute?
Thank you very much Guy :)
Apparently when purified via a salt, the TAA anhydrous freebase is pure ...
2-6-2008 at 23:23
by: Klute
Synthesis of 2,2,6,6-tetramethylpiperidin-4-one (Triacetoneamine)
Thank you very much Guy :)
Apparently when purified via a salt, the TAA anhydrous freebase is pure ...
2-6-2008 at 23:23
by: Klute
H2O2. 2.5 years and still 35%
Out of curiosity, you claim the H2O2 is 35% just becasue ot worked in a performic reaction, or becau ...
2-6-2008 at 11:06
by: Klute
TEMPO substitute?
MeOH extraction of the above crude bisulfate was tedious, so it was decided to purify the TAA via it ...
2-6-2008 at 10:17
by: Klute
Synthesis of 2,2,6,6-tetramethylpiperidin-4-one (Triacetoneamine)
MeOH extraction of the above crude bisulfate was tedious, so it was decided to purify the TAA via it ...
2-6-2008 at 10:17
by: Klute
Functionalization of silica gel without silanes, solid supported TEMPO catalysts?
Yes, a very good example is the Silicat:

[url=http://ofsys.com/T/OFSYS/H/18007/vS57vw/SiliaCat_AC ...
1-6-2008 at 05:55
by: Klute
NaBH4 reduction of piperidones, use of ammonium salts
Planning on reducing triacetoneamine to the alcohol with NaBH4 shortly, I was considering using a sa ...
1-6-2008 at 05:50
by: Klute
thionyl chloride and alcohols
Nice!

At least we will be sorted out as to what happens during the reaction with SOCl2 and meth ...
1-6-2008 at 05:27
by: Klute
proposed synthesis
Working in a research lab, we always use inert atmospher, eevn in the case were the reaction could d ...
1-6-2008 at 05:22
by: Klute
Functionalization of silica gel without silanes, solid supported TEMPO catalysts?
Thanks for the article Nicodem, very interesting. I take it derivated polystyrenes are soluble in DC ...
1-6-2008 at 05:13
by: Klute
TEMPO substitute?
[b]Synthesis of 2,2,6,6-tetramethylpiperidin-4-one according to US 3,959,295, second try[/b]

[IMG ...
31-5-2008 at 18:52
by: Klute
Synthesis of 2,2,6,6-tetramethylpiperidin-4-one (Triacetoneamine)
[b]Synthesis of 2,2,6,6-tetramethylpiperidin-4-one according to US 3,959,295, second try[/b]

[IMG ...
31-5-2008 at 18:52
by: Klute
proposed synthesis
With the benzylpiperazine, you are one carbon short compared to the other chain afetr reductive amin ...
31-5-2008 at 17:47
by: Klute
Functionalization of silica gel without silanes, solid supported TEMPO catalysts?
Well, there many articles from reputable publishers dealing with SSA use in very diverse application ...
31-5-2008 at 13:19
by: Klute
Functionalization of silica gel without silanes, solid supported TEMPO catalysts?
I'm surprised you say this as Silica Sulfuric Acid is very often used as a recycleable acid catalyst ...
31-5-2008 at 06:13
by: Klute
[Next Page]

  Go To Top