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Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
Splendid! Beautifull! Very impressive work!
This realyl is an advance in safe, practical alkylati ... |
27-9-2008 at 10:31
by: Klute |
HCl via vitriole + NaCl
Indeed, just like ScienceSquireel said, it was common enough to haev a specific verb... Unfortuanl ... |
26-9-2008 at 20:30
by: Klute |
The short questions thread (1)
Funny, because I have nearly always seen these kind of seperating funnels, and wondered what the poi ... |
26-9-2008 at 20:25
by: Klute |
Drying Oxalic Acid Dihydrate to Anhydrous
Nice! thanks for the report... I think I will try this with a hotplate next time, and see if its ... |
26-9-2008 at 20:16
by: Klute |
Common accidents in the lab and how to avoid them
I should use those PP hand pumps for gasoline to empty large containers of corrosives or toxics. The ... |
26-9-2008 at 02:43
by: Klute |
HCl via vitriole + NaCl
I'm also convinced Vitriol refers to sulfuric acid, which would make sense. In france, we even have ... |
26-9-2008 at 02:34
by: Klute |
methylenedioxybenzyl chloride + sommelet?
Good point.
The yields of piperonyl chloride from chloromethylations are very impressive. PainKil ... |
26-9-2008 at 02:31
by: Klute |
DCM or Et2O?
You would need truely large amoutn sof solvents.... It can be used to selectivly extract some aldeh ... |
26-9-2008 at 02:27
by: Klute |
methylenedioxybenzyl chloride + sommelet?
Refluxing in somewhat conc. HCl might damage the methylendioxy bridge though... So better use more ... |
25-9-2008 at 08:18
by: Klute |
Alchohol in alchohol burner?
I would go with the denaturated ethanol, as it is produced mainly for combustion... It doesn't smel ... |
24-9-2008 at 14:00
by: Klute |
Drying Oxalic Acid Dihydrate to Anhydrous
Deviating a bit, but I suppose you made it from red P and Cl2? Do you do 25g batches, or more? this ... |
24-9-2008 at 13:48
by: Klute |
The short questions thread (1)
Refluxing sodium ethoxide and ethyl acetate will get you ethyl acetoacetate... Not a recommended so ... |
24-9-2008 at 10:30
by: Klute |
Drying Oxalic Acid Dihydrate to Anhydrous
It's strange CCl4 requires really long distn times... With pet ether, the theoretic amount of water ... |
24-9-2008 at 10:25
by: Klute |
sulfonylchloride to thiol
Are you 100% sure you have the sulfonyl halide and not part sulfonic acid? Notsure what the reductio ... |
24-9-2008 at 10:15
by: Klute |
The short questions thread (1)
I would go for TEMPO-catalyzed oxidation, with NaOCl or TCCA as a secondary oxidant..... Good yield ... |
23-9-2008 at 21:38
by: Klute |
Synthesis of 3-(p-Hydroxyphenyl)-2-Butanone "raspberry ketone"
An update:
After considering the Orgsyn prep Filemon indicated, and the notes in OrgSyn preparati ... |
23-9-2008 at 10:32
by: Klute |
Catalytic Hydrogenation comments......
Preparation of the very active W-6 Raney Nickel from OrgSyn:
[url=http://orgsynth.org/orgsyn/orgs ... |
22-9-2008 at 03:22
by: Klute |
The short questions thread (1)
I think a clemmensen without Hg will only give the alcohol in some case. i remeber seeing something ... |
21-9-2008 at 22:39
by: Klute |
ester project
Arg, such a pity I didn't think about it earlier... Too bad, I hope the methyl salicylate goes well ... |
21-9-2008 at 22:35
by: Klute |
Catalytic Hydrogenation comments......
Hum, aromatic nitro compounds are much more easily reduced than aliphatic, or nitrostyrenes under ca ... |
21-9-2008 at 22:28
by: Klute |
ester project
DJF90, which preparation are you talking about?
Jor, I don't knwo why this didn't cross my mind b ... |
21-9-2008 at 12:55
by: Klute |
The short questions thread (1)
Clemmensen? You prefer working with marge amounts of HgCl2 than NaBH4?
Atmospheric hydrogeantion ... |
21-9-2008 at 06:21
by: Klute |
Common accidents in the lab and how to avoid them
...organics?.. I know it is discussed fairly often, but pirahna should a kind of last-ressort thing ... |
21-9-2008 at 03:59
by: Klute |
PTFE or Glass Stopcocked titration burette?
Are you saying your burettes are better than ours?   Let's have a titration competition   |
21-9-2008 at 03:55
by: Klute |
Test for Bromine vapour.
You could directly use commercial iodide-starch paper.
Even better, just trap the effluent with a ... |
21-9-2008 at 03:48
by: Klute |
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