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Synthesis of 3-(p-Hydroxyphenyl)-2-Butanone "raspberry ketone"
I've FINALLY decided on trying to reduce the double bond on the unsaturated zingerone ketone. 
... |
15-6-2008 at 08:13
by: Klute |
NEW!! Dakin-West Synthesis of B-Aryl Ketones
I think the methylimidazole act exactly like [url=http://en.wikipedia.org/wiki/DMAP]DiMethylAminoPyr ... |
12-6-2008 at 08:53
by: Klute |
How to cleave a ketone
But how could a sulfite form a sulfonic acid with a ketone? Loosing a proton doesn't chang the sulfi ... |
12-6-2008 at 07:31
by: Klute |
Riddle: adding reductor and acid to dichromate, order of addition makes big difference
Maybe the Cr III formed some kind of complex with hydroxylamine? What was the pH of the solution bef ... |
11-6-2008 at 13:00
by: Klute |
How to cleave a ketone
Reacting what with sulfite? The peracetyl borate? That would just give you sulfate, acetate and bora ... |
10-6-2008 at 17:51
by: Klute |
VX preparation
[quote] Secondly, anyone who tries to actually make this will be dead faster than you can say acetyl ... |
10-6-2008 at 04:12
by: Klute |
VX preparation
Why people want to prepare war gasses for the sake of preparing a chemical warfare is beyond me. |
9-6-2008 at 15:41
by: Klute |
TEMPO substitute?
Well, you had mentionned the use of ammniumbenzoate, salicylate and anthralinate, but you couldn't f ... |
9-6-2008 at 09:04
by: Klute |
TEMPO substitute?
Was the ammonium benzoate used stoechiometrically or catalytically? If used insteochiometric amounts ... |
9-6-2008 at 06:33
by: Klute |
TEMPO substitute?
Well, the TAA.HSO4 isolated from the methanol seems definatively free of ammonium salts, as when bas ... |
9-6-2008 at 05:59
by: Klute |
Functionalization of silica gel without silanes, solid supported TEMPO catalysts?
This is EXCELLENT! Much simplier than nitration, reduction, and subsequent reactions to extend the c ... |
8-6-2008 at 19:46
by: Klute |
Sulfuric acid dye
GarageChemist I have to deisagree with you, there are H2SO4 drain cleaners in France
I usually ... |
8-6-2008 at 13:49
by: Klute |
TEMPO substitute?
Ok, I have tried another oxidation with the supposed TAA hydrate, and complete lack of isolated prod ... |
8-6-2008 at 12:47
by: Klute |
Asymmetric Etherification of 1,4-dihydroxybenzene
The black colour is du to quinonic impurities trapped in the product, that black colour your reactio ... |
8-6-2008 at 08:54
by: Klute |
Ester hydrolysis
You've still got sodium acetate and 2-phenylethanol there..
C6H5-CH2-C(O)-O-CH2CH3 --NaOH--> ... |
7-6-2008 at 17:44
by: Klute |
Asymmetric Etherification of 1,4-dihydroxybenzene
Oh! My bad sorry I had the p-methoxyphenol alkylation in head
You a absolutly right, 2 equivale ... |
7-6-2008 at 16:54
by: Klute |
TEMPO substitute?
I used 5% AcOEt in toluene at the beggining, to elute most of the blue fraction, than gradually came ... |
7-6-2008 at 15:17
by: Klute |
Synthesis of 2,2,6,6-tetramethylpiperidin-4-one (Triacetoneamine)
I used 5% AcOEt in toluene at the beggining, to elute most of the blue fraction, than gradually came ... |
7-6-2008 at 15:17
by: Klute |
Asymmetric Etherification of 1,4-dihydroxybenzene
.....1,4-dimethoxybenzene?
Using MeI, especially with such ane xcess, seems wastefull. I would ad ... |
7-6-2008 at 15:07
by: Klute |
TEMPO substitute?
Hehe.. Well that aready happened to me in the past, so I'm already an organic chemist 
I did ... |
5-6-2008 at 09:43
by: Klute |
UV lamp for TLC
Thank you for the explanation! Indeed, it's then a good thing to irradiate the little buggers Bew ... |
4-6-2008 at 15:50
by: Klute |
TEMPO substitute?
Hum, bad surprise with the NaBH4 reduction!
2/3 of the water from the acidified solution was re ... |
4-6-2008 at 15:40
by: Klute |
TEMPO substitute?
Very interesting! I am currently trying method using only ammonium chloride potassium carbonate and ... |
4-6-2008 at 11:10
by: Klute |
4-ethoxy-3-methoxybenzaldehyde from vanillin
Nicodem, in my experience some low-melting aldehdyes canc risatillze fine out of DMF solution by add ... |
4-6-2008 at 05:59
by: Klute |
References nomenclature
Thank you very much for your guidance, both of you. |
3-6-2008 at 18:16
by: Klute |
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