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TEMPO substitute?
I've just performed the synthesis of triacetonamine in accordance with Klute's post above and patent ... |
17-1-2011 at 20:31
by: ziqquratu |
Foam From Hell- Troubleshooting
What about a heat gun? As long as you pay attention to what you're doing, you shouldn't have any fla ... |
19-12-2010 at 22:40
by: ziqquratu |
What to do during an emergency
A bucket of sand is more useful than a bucket of water for most organic-related fires... and a bucke ... |
6-12-2010 at 19:21
by: ziqquratu |
Make Potassium (from versuchschemie.de)
Assuming your ether isn't soaking wet, just a couple of hours is more than dry enough for a Grignard ... |
5-12-2010 at 23:56
by: ziqquratu |
met with a pharmaceutical chemist, strange...
Sounds like the person in question was just a tool...
We're not all that bad. Most people in my d ... |
12-10-2010 at 13:20
by: ziqquratu |
overheating hotplate with Al foil?
Water can (will) result in splattering with most oils, I don't know about the DOT-5 stuff, never use ... |
25-9-2010 at 16:49
by: ziqquratu |
What nucleophile?
If you wanted to hydrolyse the nitrile of a cyanohydrin, here's a reference to the reaction of 1-hyd ... |
16-9-2010 at 17:15
by: ziqquratu |
Preparation of anhydrous AlCl3 in DCM - photos
Perhaps you could try this on a small scale and see if the evolved gas burns (indicating H2)? You'd ... |
19-7-2010 at 15:40
by: ziqquratu |
Easiest way to obtain Lucas Reagent?
Couple of points:
1) In sufficiently acidic solutions, Lewis acids remain in their halogenated fo ... |
14-7-2010 at 21:10
by: ziqquratu |
TLC help needed.
Silica plates should work fine. For those compounds, I'd suspect hexane with either diethyl ether or ... |
4-7-2010 at 18:00
by: ziqquratu |
Conc. Sulfuric Acid. Latex or Nitrile?
Not sure about the alkali metal fluorides, but NH4F is also highly toxic via skin absorption. In fac ... |
23-6-2010 at 23:08
by: ziqquratu |
Conc. Sulfuric Acid. Latex or Nitrile?
I'd dispensed quite a bit of a reactant via glass syringe, and left the disassembled syringe at the ... |
22-6-2010 at 17:37
by: ziqquratu |
Conc. Sulfuric Acid. Latex or Nitrile?
I generally just wear the cheap latex gloves, purely to keep my hands somewhat clean, and to reduce ... |
21-6-2010 at 17:55
by: ziqquratu |
Determining the configuration at a stereocenter
It's what I've been explaining to my students lately - the group with the lowest priority MUST be on ... |
12-4-2010 at 14:15
by: ziqquratu |
Determining the configuration at a stereocenter
Absolutely. It's the only bond not shown - the other three are all defined (into or in the plane of ... |
11-4-2010 at 15:49
by: ziqquratu |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
DJF is right, of course... I should have said a Swern-type oxidation using the other activators, wit ... |
7-4-2010 at 15:18
by: ziqquratu |
Looking for Oxalyl Chloride (Swern ox) and 3-bromoanisole
To go back to the argument about activating reagents, you can use a whole range of activators for th ... |
5-4-2010 at 21:57
by: ziqquratu |
Column Chromatography(liquid) Noob
Pipette columns can be misleading - they work great if you have a very small amount of material that ... |
28-1-2010 at 18:18
by: ziqquratu |
Column Chromatography(liquid) Noob
You want to be careful with methanol when running columns. Too much of it in your mobile phase can d ... |
24-1-2010 at 13:57
by: ziqquratu |
(Organic) Chemistry and Web 2.0
It's not exclusively a base - it CAN act as a reducing agent, although (obviously) it isn't commonly ... |
14-1-2010 at 13:13
by: ziqquratu |
Laboratory Tips and Tricks
Wouldn't the hydrogen formed in the reaction of the aluminium with water more or less compensate the ... |
25-12-2009 at 20:06
by: ziqquratu |
Magnesium Honeycomb section in auto exhaust in Australia
If you search for replacement sacrificial anodes for hot water heaters, you'll probably find someone ... |
21-12-2009 at 19:58
by: ziqquratu |
pyridine use in benzoylation reax, why?
No, you need a base to mop up the HX - it can cause you some big problems in some cases! I'm just sa ... |
1-2-2009 at 22:56
by: ziqquratu |
pyridine use in benzoylation reax, why?
The pyridine can be used as a base for the reaction, to mop up the acid generated as Klute mentioned ... |
1-2-2009 at 12:32
by: ziqquratu |
Racemizing Optically Active Amines
I don't see that it really matters why solo would be interested in racemising an amine - perhaps pur ... |
15-1-2009 at 14:57
by: ziqquratu |
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