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Incompatibilities in organometallics?
The addition of nucleophiles (in this case RMgX) on nitroaromatics (as well as other electron poor a ... |
1-3-2008 at 13:19
by: Nicodem |
Trinitrotoluene preparation
Triflic acid is not particularly cheap (~ 2 EUR/g for reagent grade). It is many, many times more ex ... |
1-3-2008 at 01:18
by: Nicodem |
pinacolone
No, no, I was not making the pinacol. I just observed a very exothermic reaction in the filter cake ... |
1-3-2008 at 00:57
by: Nicodem |
pinacolone
I remember when I was much younger I tried to recycle the excess Mg turnings from a Grignard reactio ... |
29-2-2008 at 11:28
by: Nicodem |
KOH vs NaOH
In water solutions KOH and NaOH behave quite similarly, but in most other solvents their basicity di ... |
29-2-2008 at 09:55
by: Nicodem |
synthesis of 2-aminobenzenesulfonamide
Well, Beilstein is barrely more informative. The only retrosynthetic route it gave was:
[list][*] t ... |
29-2-2008 at 08:15
by: Nicodem |
synthesis of 2-aminobenzenesulfonamide
Show us first you did a literature search yourself. From your post one could get an impression you d ... |
29-2-2008 at 07:20
by: Nicodem |
Chromatotron - radial chromatography.
[quote][i]Originally posted by chemrox[/i]
How much material can you process at a time?[/quote]
Th ... |
29-2-2008 at 07:17
by: Nicodem |
Chromatotron - radial chromatography.
I'm pretty sure you can get them new for 1000-2000 EUR from some producers. They are pretty common i ... |
28-2-2008 at 11:15
by: Nicodem |
oxidation of N-vinil-2-pirrolidone to N-ethanamide-2-pirrolidone, a little help please.
Dr.S.A.M., It is quite possible you are one of the last internet users who had the luck of never had ... |
27-2-2008 at 13:25
by: Nicodem |
oxidation of N-vinil-2-pirrolidone to N-ethanamide-2-pirrolidone, a little help please.
Well, a simple internet search would have told you that povidone is a polymer which I would tend to ... |
27-2-2008 at 06:53
by: Nicodem |
Welcome Nicodem, the newest moderator
Well, thanks to all.
LSD25, I'm perfectly fine with the concept and rules on [b]this[/b] forum. I ... |
25-2-2008 at 00:19
by: Nicodem |
Flash Chromatography
Columns are a nightmare, especially when after so much work you get to compounds traveling more or l ... |
24-2-2008 at 23:39
by: Nicodem |
Amino alcohol via Akabori, trial run
I don't know what you are up to, but your posts were one of the few here that did not fit the criter ... |
24-2-2008 at 23:23
by: Nicodem |
Acetaldehyde synthesis
You forgot to look for those references on this forum as well:
https://sciencemadness.org/talk/view ... |
24-2-2008 at 23:06
by: Nicodem |
Precise electrolysis with a U-tube
Very nice experiments, Woelen!
I'm especially fascinated by formate electrolysis since I always won ... |
24-2-2008 at 02:48
by: Nicodem |
Suppliers
I think the reason why most individuals fail to order chemicals is because they try to order them di ... |
24-2-2008 at 02:26
by: Nicodem |
starch Problem!
What do you mean by "broke"? Is that supposed to be "hydrolyze"?
Why don't you first check the lite ... |
24-2-2008 at 02:05
by: Nicodem |
Metal Hydrides
Alkali metal and alkaline earth metal hydrides form quite readily from the elements (for example, Na ... |
24-2-2008 at 01:57
by: Nicodem |
Preparation of cyanides
[quote][i]Originally posted by Pixicious[/i]
It would be interesting to know how to make cyanohydri ... |
24-2-2008 at 01:35
by: Nicodem |
NaCl fusion to produce large single crystal?
I remember when I was a kid I melted some kitchen salt in a crucible, but it did not crystallize dur ... |
24-2-2008 at 01:25
by: Nicodem |
Phenylpropanones (P2P) from anilines
Note that they actually isolate the diazonium salt as its tetrafluoroborate salt. The improved yield ... |
23-2-2008 at 04:45
by: Nicodem |
Preparation of piperidine from pyridine?
Here are two references, one a CTH reduction and the other a hydrogenation. Ru and Ni based catalyst ... |
23-2-2008 at 04:35
by: Nicodem |
Amines from alcohols??
Variants of the Ritter reaction exist where urea, thiocyanate or cyanate salts were used (forming HS ... |
19-2-2008 at 22:53
by: Nicodem |
acetylsalicylic acid
Nice job!
A 77% yield after recrystallization indicates the conversion is pretty much quantitati ... |
19-2-2008 at 11:26
by: Nicodem |
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