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Acid to aldehyde w/o hydrides?
I'm also fairly sure you could use 5% Pd-C, instead of the classical Pd-BaSO4, if you poison it with ... |
20-12-2008 at 02:58
by: Nicodem |
Simvastatin farmaceutical industrial synthesis ?
[quote][i]Originally posted by ItalianXKem[/i]
salivinorin A is very like structure to simvastatin[ ... |
17-12-2008 at 08:15
by: Nicodem |
Benzene synthesis
Finally I found a study about toluene to benzene/xylene Friedel-Crafts disproportionation. All this ... |
17-12-2008 at 08:11
by: Nicodem |
Help: Failed chloromethylsulfonyl chloride Prep
Thanks for sharing your interesting experience.
[quote][i]Originally posted by smuv[/i]
The conten ... |
17-12-2008 at 00:50
by: Nicodem |
direct hydroamination of olefins with biscyclopentadiene samarium complex catalysis
Hidroaminations of alkenes (formal addition of R<sub>2</sub>N-H over the double bond) ar ... |
17-12-2008 at 00:32
by: Nicodem |
Possible OTC, 'safe' methylating agents
DMF is a dipolar solvent which serves many purposes in the reaction (to solvate the K2CO3 in order f ... |
15-12-2008 at 02:03
by: Nicodem |
Possible OTC, 'safe' methylating agents
Nevertheless, dimethyl- or diethyloxalates are relatively common chemicals and some may have less tr ... |
15-12-2008 at 00:35
by: Nicodem |
How to use AlHg Amalgam on Indole?
Not exactly. In some cases you can get the indole system untouched even if using BH<sub>3</ ... |
13-12-2008 at 09:00
by: Nicodem |
Possible OTC, 'safe' methylating agents
The oxalic acid methyl and ethyl esters work because the monoalkyl oxalate is almost a good leaving ... |
13-12-2008 at 08:46
by: Nicodem |
How to use AlHg Amalgam on Indole?
So, is that supposed to be a name for 2-(indol-3-yl)nitroethene? Weird that anybody would have named ... |
12-12-2008 at 00:44
by: Nicodem |
How to use AlHg Amalgam on Indole?
[quote][i]Originally posted by BobHawson[/i]
In the procedure below, could 2,5-Dimethoxynitrostyren ... |
12-12-2008 at 00:13
by: Nicodem |
nitrofuroxime synthesis ?
Please post one line questions in the [url=http://sciencemadness.org/talk/viewthread.php?tid=11319]T ... |
11-12-2008 at 09:07
by: Nicodem |
Methylation of 5-Hydroxytryptophan (5-HTP)
Ah, yes dimethyl sulfate is a methylating reagent for phenols. I read you previous posts about using ... |
11-12-2008 at 00:49
by: Nicodem |
The short questions thread (1)
No phosgene should form. However, tetrachloroethylene is a very electron poor alkene and will take a ... |
11-12-2008 at 00:30
by: Nicodem |
Methylation of 5-Hydroxytryptophan (5-HTP)
[quote][i]Originally posted by BobHawson[/i]
Found this on the same site, do you folks think substi ... |
10-12-2008 at 23:53
by: Nicodem |
Pepper to Piperine problem
[quote][i]Originally posted by McLovin382[/i]
Okay sorry :/ I'm half wrong
Piperine is indeed in ... |
10-12-2008 at 00:22
by: Nicodem |
The short questions thread (1)
Your question is impossible to answer with a simple reply. There already is a thread about the topic ... |
8-12-2008 at 01:44
by: Nicodem |
flash chromatography column
I agree that for 30 mm diameter column you will unlikely get a separation (or at least one without o ... |
7-12-2008 at 07:35
by: Nicodem |
Acylation of benzene with anhydrides
[quote][i]Originally posted by stereochem[/i]
Dear friend, I am an org chem student and I know how ... |
7-12-2008 at 07:20
by: Nicodem |
acetone intollerant substance
You could try hydrophobizing with CH3(CH2)17SiCl3 or CH3(CH2)17Si(OEt)3. As far as I know, both are ... |
6-12-2008 at 06:45
by: Nicodem |
Aromatic iodinations
[quote][i]Originally posted by chemrox[/i]
Br. was Br radical which happens easily in the presence ... |
6-12-2008 at 06:37
by: Nicodem |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
[quote][i]Originally posted by Klute[/i]
Well, it could be worth a try. I am a little sceptical I ... |
5-12-2008 at 01:23
by: Nicodem |
definition of "syn-" and "anti-" !!!
[i]Syn[/i]- and [i]anti[/i]- are referred to the orientation of two substituents in rotamers. Since ... |
5-12-2008 at 01:13
by: Nicodem |
Demethylation mechanism
Like Klute said, the O-demethylations are just simple [url=http://en.wikipedia.org/wiki/SN2_reaction ... |
5-12-2008 at 01:01
by: Nicodem |
Aromatic iodinations
[quote][i]Originally posted by stoichiometric_steve[/i]
[quote][i]Originally posted by Nicodem[/i][ ... |
5-12-2008 at 00:34
by: Nicodem |
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