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Remember the Multiton AN Purchase in Canada?
There was a pretty large explosion in my Town in 2001, supposibly becasue of a large pile (300-400 t ...
6-10-2008 at 13:01
by: Klute
Synthesis of Tartrazine and Allura Red AC
Glad I could help! If you perform the synthesisfor your project, please report your results back her ...
6-10-2008 at 12:46
by: Klute
Acetophenones from benzaldehydes?
I have located an article mentionning the preparation of substitued acetophenones after double-decar ...
6-10-2008 at 09:27
by: Klute
Synthesis of 3-(p-Hydroxyphenyl)-2-Butanone "raspberry ketone"
Well, when reducing dehydrozingerone, at least 5% saturated alcohol was formed using Pd/C and K2CO3 ...
6-10-2008 at 02:07
by: Klute
Synthesis of 4-(3,4-methylendioxyphenyl)butan-2-one, "Cassione"
Just found another interestinf alternative: the butanones can be formed by using a diazotized anilin ...
5-10-2008 at 15:21
by: Klute
Gas chromatographs
Most of the modern macro-bore columns can be adapted on "old" packed colum machines, using the same ...
5-10-2008 at 15:00
by: Klute
The short questions thread (1)
There is a thread on the oxidation of xylenes to benzen dicarboxylic acids using neutral KMnO4, the ...
5-10-2008 at 14:56
by: Klute
Synthesis of 3-(p-Hydroxyphenyl)-2-Butanone "raspberry ketone"
Good news!


I have tried out the atm hydrogenation of dehydrorheosmin over Pd/C, using 25% mol/m ...
5-10-2008 at 10:20
by: Klute
Synthesis of 4-(3,4-methylendioxyphenyl)butan-2-one, "Cassione"
You can couple MVK direct with phenol to Rheosmin, there are several articles on this in the origina ...
5-10-2008 at 09:52
by: Klute
methylenedioxybenzyl chloride + sommelet?
Good point, but making ethylen and ethylen oxyde isn't evry practical, well not quite the chemistry ...
5-10-2008 at 09:48
by: Klute
Synthesis of Tartrazine and Allura Red AC
EIDt: Got ya!


[quote]"FD&C Yellow N° 5 (Tartrazine, color index N° 19140) is a monoazo dy ...
5-10-2008 at 06:25
by: Klute
quick lipid question
have a look at this patent:
[url=http://www.wipo.int/pctdb/images4/PCT-PAGES/2003/212003/03041514/0 ...
5-10-2008 at 05:58
by: Klute
methylenedioxybenzyl chloride + sommelet?
Yes, I beleive the corresponding 2-phenyethanols posses pleasants smells too.

I think you must ha ...
5-10-2008 at 05:50
by: Klute
Synthesis of 4-(3,4-methylendioxyphenyl)butan-2-one, "Cassione"
Well, it's butan-2-one starting from the methyl alpha from the carbonyl, and not the phenyl ring. Ob ...
5-10-2008 at 05:40
by: Klute
Synthesis of 4-(3,4-methylendioxyphenyl)butan-2-one, "Cassione"
This coumpound is said to posses the aroma of black currant. There is little information on this com ...
4-10-2008 at 19:16
by: Klute
methylenedioxybenzyl chloride + sommelet?
My bad on the aldol, I don't know know what I was thinking :)

That unconventional grignard seems ...
4-10-2008 at 18:01
by: Klute
The short questions thread (1)
I don't have the precise examples in head, but yes I am sure some HCl salts are sparingly soluble, o ...
4-10-2008 at 05:27
by: Klute
methylenedioxybenzyl chloride + sommelet?
Well, there would be more simple ways of doing this, like aldol with formaldehyde and reduction of t ...
3-10-2008 at 12:09
by: Klute
methylenedioxybenzyl chloride + sommelet?
With what benzyl halide? Piperonyl?

Did you make i by halomethylation or from the alcohol?

I'm ...
3-10-2008 at 07:47
by: Klute
Synthesis of phenol
See [url=http://www.pat2pdf.org/patents/pat4500721.pdf]US4500721[/url] for the copper-treated Raney ...
3-10-2008 at 03:06
by: Klute
Synthesis of phenol
You could form benzonitriles from the amides, and thenr educe with copper-treated Raney nickel to ob ...
2-10-2008 at 23:12
by: Klute
methylenedioxybenzyl chloride + sommelet?
And the quoted [i]J. Chem. Soc., Perkin Trans.[/i] article

I haev found more info on the acetoace ...
2-10-2008 at 22:52
by: Klute
methylenedioxybenzyl chloride + sommelet?
Sorry, I thought you were refering to the WIPO patent at first..

I was pretty stunned, as I had t ...
2-10-2008 at 22:49
by: Klute
p-chloro aniline
oups my bad, I went through the thread quickly and must have over read your post..
2-10-2008 at 08:52
by: Klute
p-chloro aniline
would it be possible to go via the acetanilide? I know I can be brominated with majorly para-isomers ...
2-10-2008 at 08:23
by: Klute
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