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A simple extraction?
[rquote=205527&tid=15160&author=Random]
http://en.wikipedia.org/wiki/Piperine

"It yields ...
30-3-2011 at 12:20
by: Nicodem
Some Questions
[rquote=205183&tid=15867&author=Nicodem]The number of stereoisomers is thus easy to calculat ...
30-3-2011 at 10:33
by: Nicodem
Ozone epimerization?
Please open threads without references, and/or with vague or unanswerable questions only in the Begi ...
30-3-2011 at 10:26
by: Nicodem
A simple extraction?
[rquote=205495&tid=15160&author=Random]I saw on this page that solubility of piperine is 40m ...
30-3-2011 at 10:20
by: Nicodem
Synthesis of Oleic Acid from Olive Oil
Mindchemist, please explain what this thread is about. Have you actually performed what you claim or ...
30-3-2011 at 10:14
by: Nicodem
Benzaldehyde from Benzyl Chloride and Nitromethane
[rquote=205305&tid=15878&author=Ephoton]case closed :)

...

Eleven and one-half grams ( ...
28-3-2011 at 10:06
by: Nicodem
Urea salts during heating
[rquote=205184&tid=15850&author=Random]AndersHoveland, thanks for that carbamate ester info, ...
26-3-2011 at 03:23
by: Nicodem
Some Questions
A stereogenic center is each atom or bond that can have two or more configurations with the same con ...
26-3-2011 at 03:17
by: Nicodem
Urea salts during heating
[rquote=204924&tid=15850&author=Random]I was thinking for some time, urea often makes salts ...
26-3-2011 at 02:59
by: Nicodem
Trimethylsulfonium bromide and its use for the methylation of phenols
[rquote=205082&tid=15704&author=spirocycle]Just a note for those trying this:
when diluted ...
25-3-2011 at 13:10
by: Nicodem
Some Questions
1. The product P is most like 2-naphthol and the diene at the left plays no role. The Diels-Alder re ...
25-3-2011 at 12:39
by: Nicodem
Indole to Indole N-oxide
Are you sure you mean indole N-oxide rather than N-hydroxyindole? As far as I know indole N-oxides a ...
20-3-2011 at 07:54
by: Nicodem
Trimethylsulfonium bromide and its use for the methylation of phenols
[rquote=204680&tid=15704&author=spirocycle]so you are saying that TMSB is less reactive, mak ...
20-3-2011 at 07:17
by: Nicodem
Trimethylsulfonium bromide and its use for the methylation of phenols
With "too small", I had in mind the genotoxicity mechanisms relying in direct non-covalent interacti ...
19-3-2011 at 09:32
by: Nicodem
Trimethylsulfonium bromide and its use for the methylation of phenols
But why would you suspect trimethylsulfonium salts could be carcinogenic?
With such preemptive assu ...
19-3-2011 at 02:16
by: Nicodem
Catechol preparation
The only mention related to the Fries rearrangement of aspirin that I could find is in some old arti ...
19-3-2011 at 01:51
by: Nicodem
Water removal from ionic liquid
You would better try drying the urea and acetamide first (for example, in a desiccator over P2O5 und ...
14-3-2011 at 08:28
by: Nicodem
De-Tert-Butylation of 4-t-butylacetophenone
[rquote=204215&tid=15781&author=johnames]I haven't found much on why FeCl3 leads to dirtier ...
14-3-2011 at 05:17
by: Nicodem
Amidation of Fatty Acids
"MS 3A" means 3 Angstroms molecular sieves. That is from Synthesis, 2009, 160-164. It does not appea ...
13-3-2011 at 11:53
by: Nicodem
desktop NMR?
The peaks are absolutely terribly wide and couplings horrible!

But speaking relatively, the peaks ...
13-3-2011 at 11:36
by: Nicodem
Why the nitrile groups are unreactive in polyacrylonitrile?
[rquote=204085&tid=15777&author=adianadiadi]Nitrile group is reactive and can undergo hydrol ...
13-3-2011 at 11:25
by: Nicodem
Chemical properties of disodium chloride?
[rquote=204118&tid=15779&author=m1tanker78]I also found it in a formulation of eye drops man ...
13-3-2011 at 11:22
by: Nicodem
Pyridoxine to Pyridoxal
[rquote=203997&tid=15772&author=Om rana]I need to oxidise Pyridoxine to Pyridoxal....(reacti ...
13-3-2011 at 11:08
by: Nicodem
De-Tert-Butylation of 4-t-butylacetophenone
You can check a review paper on the use of the t-butyl protecting group for positions on the aromati ...
13-3-2011 at 10:49
by: Nicodem
The Social Norm of Capitalization
Yes, I'm aware that everyone, me included, makes lots of mistakes. But that was not the question. Wh ...
12-3-2011 at 06:24
by: Nicodem
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