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Chromatography materials
Even when using commercial plates, it's a good idea to not only spot the samples on the same plate, ... |
5-11-2008 at 13:30
by: ziqquratu |
Reduction of carboxylic acid to alcohol!
NaBH4 with I2 might do the job for you. |
16-9-2008 at 03:41
by: ziqquratu |
Separation of thiols and ketones
I work with thiols fairly frequently (although I'm focusing on some non-sulfur work at the moment, w ... |
2-9-2008 at 01:56
by: ziqquratu |
Separation of thiols and ketones
If you're so dead against distillation (why? You can, as Klute said, avoid the smell by using simple ... |
1-9-2008 at 18:36
by: ziqquratu |
Chemistry at home as a kid - Jack Baldwin
Hey all,
I've just been reading an interview published in the latest edition of Synlett with one ... |
27-8-2008 at 20:53
by: ziqquratu |
Electrochemical hydrogenation with Ni and Fe electrodes
Scanning for new pracs to implement in some classes I teach, I stumbled across this article which lo ... |
25-8-2008 at 02:00
by: ziqquratu |
Acetophenones from benzaldehydes?
Diazomethane is dangerous, but like anything can be handled properly if you take care. In our lab, w ... |
30-7-2008 at 22:58
by: ziqquratu |
Aromatic halogen exchange: chloro to bromo
As far as I can remember, the Cl --> I exchange was fairly poor yielding, and Cl --> Br exchan ... |
18-5-2008 at 15:19
by: ziqquratu |
Who's working with chiral compounds (auxiliary )
They're pretty basic - made by acetal protection of diethyl tartrate (easiest done with 2,2-dimethox ... |
22-4-2008 at 16:48
by: ziqquratu |
Organoboron enolization reagent for a tertiary amide
Much of the stereoselectivity given by Evans' reagents depends upon complexation of the Lewis acid t ... |
11-4-2008 at 23:39
by: ziqquratu |
Benzyl and Benzal chloride, Benzaldehyde and Benzoic Acid - Illustrated Practical Guide
Hey len, great write-up. A couple of ideas that might improve yields in the purification steps:
F ... |
29-3-2008 at 16:21
by: ziqquratu |
Solid Phase Reaction Vessel?
Looks to me like a setup for solid phase peptide synthesis. You put your resin in the top, add solve ... |
23-3-2008 at 19:50
by: ziqquratu |
Chromatotron - radial chromatography.
Thanks Polverone, and sorry you had to shrink them - I thought I fixed it (they were MUCH bigger ori ... |
17-3-2008 at 15:00
by: ziqquratu |
Chromatotron - radial chromatography.
Hi again... As I mentioned (it's down the bottom of my last post), I can't seem to get the images to ... |
16-3-2008 at 02:06
by: ziqquratu |
Chromatotron - radial chromatography.
Hi everyone, finally back with pictures!
Firstly, I should answer vulture's question. Radial chro ... |
15-3-2008 at 22:33
by: ziqquratu |
Chromatotron - radial chromatography.
I've used them quite extensively. If you look at the picture you posted, the funnel feeds solvent to ... |
27-2-2008 at 22:39
by: ziqquratu |
rotary vacuum distiller
On rotavaps, you could take a glance at this site:
http://microblog.routed.net/2007/03/19/how-to- ... |
25-2-2008 at 00:37
by: ziqquratu |
Aldehyde to nitrile
And:
Direct transformation of aldehydes to nitriles using iodine in ammonia water
Sanjay Talukda ... |
31-5-2007 at 14:20
by: ziqquratu |
Aldehyde to nitrile
Here we go:
Direct Conversion of Aldehydes to Amides, Tetrazoles, and Triazines in Aqueous Media ... |
31-5-2007 at 14:18
by: ziqquratu |
Sodium!
Ahoy sodium enthusiasts!
Just stumbled across this article, which I find DAMN interesting. The is ... |
28-2-2007 at 17:07
by: ziqquratu |
Purification of TiCl4
From Perrin "Purification of Laboratory Chemicals", 3rd ed.
Titanium tetrachloride [7550-31-0] M ... |
15-12-2006 at 22:52
by: ziqquratu |
Alkylation with Ph-Et-Br
Nope, you were basically right. I, however, managed to badly confuse myself.
Anyway, as Nicodem s ... |
24-11-2006 at 23:16
by: ziqquratu |
Alkylation with Ph-Et-Br
Hey nicodem, you could very well be right. I originally took it to be an ethoxycarbonyl-protected am ... |
24-11-2006 at 03:03
by: ziqquratu |
Alkylation with Ph-Et-Br
The amine is protected with a carbamate, so it should be ok (although I've only ever alkylated fully ... |
22-11-2006 at 16:47
by: ziqquratu |
LiAlH4 vs NaBH4
Something I've been told is that dilute solutions can in some respects be more of a hazard than the ... |
11-11-2006 at 16:20
by: ziqquratu |
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