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The short questions thread (1)
STEVE: 10-15 HCl or 20% H2SO4 and several hours of reflux works very well for cleaving primary ami ... |
23-10-2008 at 03:40
by: Klute |
birdshot sodium
I woul dsuggest using a inflatable ballon for such washing instead of a current of argon, as it will ... |
23-10-2008 at 03:29
by: Klute |
CCl3Br -> CCl4 or CHCl3
Nice find! Obtaining equimolar amounts of toluene and BrCCl3 is indeed very practical, and you coul ... |
23-10-2008 at 03:23
by: Klute |
Synthesis of gamma-nonalactone (Coconut aroma)
Thank you for your interpretation, it makes sense. making the aldehdye from oleic acid is indeed a v ... |
23-10-2008 at 03:08
by: Klute |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Thank you for the comment KMnO4. I too was pretty surprised byt he color, but I just considered that ... |
23-10-2008 at 03:05
by: Klute |
The short questions thread (1)
It might cause some hydrolysis I think, or at least perturb the equilibrium.. Depending on your su ... |
20-10-2008 at 00:17
by: Klute |
Fluoromethanes and fluoro-halomethanes
Thank you, that's something I didn't know. I guess CBr4 could be used as a mild brominating agent? A ... |
20-10-2008 at 00:02
by: Klute |
The short questions thread (1)
DMAP is said to be very effective, it works very well for b-ketoesters, yielding the amides with no ... |
19-10-2008 at 14:40
by: Klute |
Fluoromethanes and fluoro-halomethanes
Has tetrabromomethane similar properties than CCl4? Or is it more reactive/less usefull solvent-wise ... |
19-10-2008 at 14:31
by: Klute |
heating mantel questions
I think you are not interpreating things correctly, my gues is that they ahev models from 50ml to 10 ... |
19-10-2008 at 08:09
by: Klute |
CCl3Br -> CCl4 or CHCl3
Well, Panreac and Acros sell DMAP in small format (20-25g) at a reasonable price, but I was more int ... |
19-10-2008 at 08:02
by: Klute |
nutra sweet ---> Phenylacetic acid
Sauron, sodium nitrite is an antidote to H2S poisoning. Nitrite esters can also retard the effect as ... |
19-10-2008 at 06:27
by: Klute |
CCl3Br -> CCl4 or CHCl3
No, no, no! I don't want to make pyridine  I just buy the stuff. I was more
interested in things l ... |
19-10-2008 at 06:11
by: Klute |
CCl3Br -> CCl4 or CHCl3
Sorry to say this Jarynth, I'm not the one that was trying to prepare pyridine by decarboxylation ... |
19-10-2008 at 05:52
by: Klute |
CCl3Br -> CCl4 or CHCl3
Ok, perfect then. I was thinking you were planning on using the ammonium salt directly to the acetoa ... |
19-10-2008 at 04:42
by: Klute |
CCl3Br -> CCl4 or CHCl3
Are you sure NH3 can be replaced by ammonium acetate here? I guess it simialr to some kind of mannic ... |
18-10-2008 at 17:22
by: Klute |
Synthesis of gamma-nonalactone (Coconut aroma)
Indeed, I was pretty surprised at first, I suppose the dehydratation to the unsaturated acid occurs ... |
17-10-2008 at 15:39
by: Klute |
Oxidation of a phenolic derivative with ammonium persulfate
Again, off topic, but large scale reactions are only needed, IMHO, when you are preparing a reagent ... |
17-10-2008 at 06:37
by: Klute |
homebuilt fume hood
Please post more pics when you can Jor, it is a deligth to see a buildind hood.. |
16-10-2008 at 08:54
by: Klute |
CCl3Br -> CCl4 or CHCl3
Indeed, quite convenient. i was rather thinking of following the reactiosn though that direct worku ... |
16-10-2008 at 08:51
by: Klute |
Solvent Stills
Beautifull glassware! That looks like one hell of an offer...
BTW, yes I think it's in that book ... |
16-10-2008 at 07:52
by: Klute |
CCl3Br -> CCl4 or CHCl3
Not too familiar with such compounds, maybe zinc dust would cause selective dehalogenation?
How c ... |
16-10-2008 at 07:48
by: Klute |
Oxidation of a phenolic derivative with ammonium persulfate
I don't get it. You start asking questions, and when people try to rectify you you get all mad... S ... |
16-10-2008 at 07:42
by: Klute |
Solvent Stills
Extarct from the Perrin and Armarego book cited above, for DCM:
[quote]Dichloromethane [75-09-21 ... |
15-10-2008 at 12:27
by: Klute |
"dry" acetone
Well, in order to be sure the salt is an anhydrous as possible, it always best to dry it at 100°C f ... |
15-10-2008 at 12:24
by: Klute |
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