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lab automation
Thanks for drawing my attention to the phthalate bubbler. Its a shame I can't get one made  Looks ... |
27-11-2012 at 10:16
by: DJF90 |
2-methyl-3-butyn-2-ol
Acetylenes can be deprotonated using KOH/MeOH. I dont know how acetylene itself will hold up; I susp ... |
27-11-2012 at 10:01
by: DJF90 |
BHT Synthesis
So a reaxys search yielded very little. The dialkylation of p-cresol does not look to go very well o ... |
27-11-2012 at 03:54
by: DJF90 |
BHT Synthesis
I'm off to the library in the morning so if I remember l'll do a lit search. I've looked at the prep ... |
26-11-2012 at 15:23
by: DJF90 |
p-benzoquinone HELP!!!
I did the slow addition method and it worked fine for me. I followed a similar method to Christian o ... |
21-11-2012 at 09:39
by: DJF90 |
Toluene to Anthranilic acid
I mentioned it to him in a private communication based on posts Sauron made and from similar Orgsyn ... |
21-11-2012 at 09:31
by: DJF90 |
p-benzoquinone HELP!!!
I don't think you continued the reaction far enough. Perhaps your H2O2 has degraded over time or som ... |
21-11-2012 at 09:20
by: DJF90 |
Mel-temp thermometer question
If I'm not mistaken, determination of melting point is enhanced by having the sample between crossed ... |
21-11-2012 at 07:46
by: DJF90 |
Mel-temp thermometer question
76mm immersion is almost a standard when it comes to thermometers. Its also possible to use a total ... |
21-11-2012 at 00:33
by: DJF90 |
Mel-temp thermometer question
As far as I recall, the thermometers are exactly the same. Get a 0-360*C one, with as many graduatio ... |
19-11-2012 at 23:22
by: DJF90 |
Phosphorus Pentachloride
LOL now thats salesmanship  |
18-11-2012 at 13:30
by: DJF90 |
Now that is what I call a home lab.
I don't like it personally. And that organ playing is ridiculous. Just my opinion I guess... |
18-11-2012 at 01:20
by: DJF90 |
Thermometer adapter interference
You may have better luck using a lower range thermometer. You don't specify what you have, but a -10 ... |
18-11-2012 at 00:13
by: DJF90 |
question regarding acetylation
Pyridine is a nucleophilic catalyst. Imidazole might be a substitute. DMAP is a classic but likely h ... |
14-11-2012 at 11:04
by: DJF90 |
Extremely strong bases for enolization
You sure you wouldn't get competing pinacol coupling, Chemrox? |
12-11-2012 at 21:52
by: DJF90 |
Extremely strong bases for enolization
Its alpha-halogenation of a ketone/aldehyde. Like I said, if you want mono-halogenation, a good meth ... |
12-11-2012 at 11:31
by: DJF90 |
How to separate Cerium dioxide and copper?
He says he has a solution of the two, which is impossible given they're both insoluble. If they've b ... |
8-11-2012 at 02:55
by: DJF90 |
Extremely strong bases for enolization
A halo condensation? You mean halogenation? Depending on your substrate, you may suffer from regiose ... |
7-11-2012 at 23:23
by: DJF90 |
Alternative to DCE or THF
Sorry, I must have got my wires crossed. I guess what I remember is that solvents like DCE and metha ... |
7-11-2012 at 20:17
by: DJF90 |
Alternative to DCE or THF
I've used DCM as a solvent for the N-benzylation of anilines before, using STAB. Yields were dependa ... |
7-11-2012 at 19:02
by: DJF90 |
Making I2 with NO2, success
I mentioned this method to Plante1999 in a private communication last month. I had seen the reaction ... |
7-11-2012 at 16:46
by: DJF90 |
Choosing TLC plates
The whole plates fluoresce green under UV 254nm. Compounds on the plates quench this fluorescence an ... |
7-11-2012 at 16:40
by: DJF90 |
Extremely strong bases for enolization
Sodium hydride is a good choice, as is sodamide. What do you want quantitative enolate formation for ... |
5-11-2012 at 08:31
by: DJF90 |
Help with lattice energies
Been there (not there, but you know what I mean), done that. I suspect we'll be hearing from you aga ... |
2-11-2012 at 11:29
by: DJF90 |
Help with lattice energies
Glad it helped. The answer will probably not match exactly an experimental value as there are certai ... |
2-11-2012 at 09:21
by: DJF90 |
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