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The short questions thread (1)
Panache, put your schlenk/flask in a sealed bag or similar with a dessicant inside before putting it ... |
22-12-2008 at 08:37
by: Klute |
Acid to aldehyde w/o hydrides?
Wouldn't the ester give an acyloine condensation in presence of sodium? |
22-12-2008 at 08:21
by: Klute |
Synthesis of o-phenylenediamine
It also is an excellent ligand for coordination chemistry, forming exceptional oxidation state metal ... |
22-12-2008 at 08:06
by: Klute |
How to use AlHg Amalgam on Indole?
[quote][i]Originally posted by stoichiometric_steve[/i]
[quote][i]Originally posted by Klute[/i]
w ... |
17-12-2008 at 13:57
by: Klute |
The short questions thread (1)
I'm sure to many nitroethane is more preciosu than ethylamine  I think the idea
of oxidizing ethy ... |
17-12-2008 at 09:54
by: Klute |
How to use AlHg Amalgam on Indole?
A bit off topic, but I have had good results by neutralising excess LAH with hydrated Na2So4.10H2O u ... |
17-12-2008 at 09:42
by: Klute |
Help: Failed chloromethylsulfonyl chloride Prep
Very interesting topic! I had never heard of this preparation, it seems it can be very usefull, star ... |
16-12-2008 at 14:01
by: Klute |
Spectral database of organic compounds.
Indeed, SDBS is THE reference in spectral database! I was so amazed the day I discovered it...
I ... |
16-12-2008 at 11:11
by: Klute |
Boron Plastic Shell ?
Planning a revolution? Good thing I moved north then  |
15-12-2008 at 11:24
by: Klute |
The short questions thread (1)
No, unfortunaly this reaction cannot be used in a preparative way, there will always be various poly ... |
14-12-2008 at 10:49
by: Klute |
The short questions thread (1)
I don't thin k many people make it themselves, this is the kind of chemical that is much easier to p ... |
14-12-2008 at 09:29
by: Klute |
flash chromatography column
I'm sure that will be more than enough, I usually left it at 80°C under 25torr for a few hours, or ... |
14-12-2008 at 09:15
by: Klute |
Possible OTC, 'safe' methylating agents
Although this obviously is a interesting subject, I think it is very limited in scope. Like Nicodem ... |
14-12-2008 at 09:01
by: Klute |
flash chromatography column
Yes, I re-use clean silica gel a few times at home (except when I purifying a delicate/expensive com ... |
12-12-2008 at 09:14
by: Klute |
Acetone Uses
Maybe he's making phenol from cumene, or any other oxo process.. |
12-12-2008 at 09:10
by: Klute |
Methylation of 5-Hydroxytryptophan (5-HTP)
I would protect the amine by acylation (Ac2O, TsCl or even HCOOEt), and alkylate the phenol with tri ... |
11-12-2008 at 09:34
by: Klute |
Secondary->Tertiary amines... modern methods
Well, you could introduce a arene by acylating an aniline, and then reducing the amide.
I agree o ... |
11-12-2008 at 09:19
by: Klute |
The short questions thread (1)
Yes, yes, and yes |
8-12-2008 at 10:03
by: Klute |
what is the definition of an activated metal?
Actually, in the context of metals, I was considering "activated" meaning with any protective layer ... |
8-12-2008 at 10:01
by: Klute |
Acylation of benzene with anhydrides
Vogels: very complete practical chemistry book, with hundred of preparations, both practical and th ... |
7-12-2008 at 15:38
by: Klute |
Acylation of benzene with anhydrides
IMHO, mediocre teaching at he university is no excuse for such arrogance and lazyness. Actually, it ... |
7-12-2008 at 11:52
by: Klute |
Acylation of benzene with anhydrides
Thesed kind of posts are really getting me upset. "Give a receipe" isn't going to get you anywhere, ... |
7-12-2008 at 08:53
by: Klute |
Demethylation mechanism
I don't think you can easily demethylate your o-methoxy amine without complications, but I suggest y ... |
6-12-2008 at 13:50
by: Klute |
Secondary->Tertiary amines... modern methods
Well, there are several good routes for methylations to tertiary amines: HCHO/HCOOH, trimethylphosph ... |
6-12-2008 at 12:33
by: Klute |
flash chromatography column
5-20 g is already a large amount of column chromatography With that 30x300, i
wouldn't do any mo ... |
6-12-2008 at 05:33
by: Klute |
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