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Odd results from 5-bromovanillin synthesis?
It probably is the formed 5-bromovanillin starting to go out of solution. The end product should not ...
4-10-2010 at 04:48
by: Sergei_Eisenstein
Importing from China
Anything is possible in China if you want to pay for it (not only in China, off course....). A compa ...
5-9-2008 at 12:41
by: Sergei_Eisenstein
Alkyl chlorides, Bromides and Iodides
They (= academically scholared chemists) told me that Ph3P=O can only be removed by column chromatog ...
15-3-2008 at 09:04
by: Sergei_Eisenstein
The end of pyrotechnics in NL is even closer
[quote]The reason for these insanely strict regulations is that last New Year's eve, public property ...
5-2-2008 at 12:18
by: Sergei_Eisenstein
organolithium reagents
[quote]Hence I always transfer the reagent to a round bottom Schlenk flask and store over nitrogen w ...
16-12-2007 at 11:56
by: Sergei_Eisenstein
mechanism-N-benzylacrylamide synthesis
This reaction is also known as the [url= ...
27-10-2007 at 08:33
by: Sergei_Eisenstein
phenethyl bromide from bromobenzene?
I would try the following:

1) organomagnesium of halobenzene + ethylene oxide -> 2-phenylethan ...
20-10-2007 at 13:16
by: Sergei_Eisenstein
Synthesis of Allylbenzene
It is possible to prepare allylbenzene via a Grignard reaction: bromobenzene, Mg and allylbromide. S ...
18-10-2007 at 00:29
by: Sergei_Eisenstein
Piracetam from 2-Pyrrolidone
This is sciencemadness. Nobody here really handles lachrimators in a hood. That's for sissies.

Un ...
14-10-2007 at 12:08
by: Sergei_Eisenstein
Piracetam from 2-Pyrrolidone
[quote]Has someone a complete synthesis from 2-pyrrolidone or can someone please help me with the mi ...
14-10-2007 at 03:07
by: Sergei_Eisenstein
L-tryptophan decarboxylation

No, it's not. Many people have experimented with the decarboxylation of tr ...
7-10-2007 at 12:07
by: Sergei_Eisenstein
Thionyl chloride and acetone, what happens?
[quote]Or, the interesting stuff reacted with my injection liner/seal. Or, it came out within my sol ...
5-10-2007 at 12:04
by: Sergei_Eisenstein
Novel route to Methylone?
[quote]A method of acylating benzodioxole I rarely see mentioned is published in WO9639133 by J. Pey ...
3-10-2007 at 10:39
by: Sergei_Eisenstein
Reduction Al-Hg
In the scientific community, correcting and being corrected is standard procedure. If you cannot dea ...
3-10-2007 at 10:27
by: Sergei_Eisenstein
Novel route to Methylone?
[quote]this method looks very good on paper, if you have Pd/C, DMF and POCl3, you're set for yet ano ...
29-9-2007 at 05:23
by: Sergei_Eisenstein
aldol question, phenylpropane-1,2-diol?
The aldol reaction of benzaldehyde and acetaldehyde will theoretically yield cinnamaldehyde, proceed ...
17-9-2007 at 09:33
by: Sergei_Eisenstein
role of CuI in synthesis of N,N-diphenylacetamide
That's a type of Ullmann reaction. A hypothesis of the catalytic Cu-cycle can be found here:

http ...
14-9-2007 at 10:37
by: Sergei_Eisenstein
Replacement solvent for cyclohexane in demethylation of eugenol
Several Lewis acids can be used to cleave alkyl aryl ethers: AlCl3, BBr3, AlI3, ... They all proceed ...
8-9-2007 at 14:50
by: Sergei_Eisenstein
Replacement solvent for cyclohexane in demethylation of eugenol
It is likely toluene will be a suitable replacement for cyclohexane. Be careful when preparing the A ...
8-9-2007 at 13:32
by: Sergei_Eisenstein
Potential Sonogashira Reaction Problems?
I have seen the Sonogashira reaction being used to couple alkynes with halopyridines, so I don't thi ...
8-9-2007 at 01:49
by: Sergei_Eisenstein
nitro from amine
[quote]Is it possible to oxidize an amine to nitro with peracetic acid?[/quote]

As far as my th ...
4-9-2007 at 11:41
by: Sergei_Eisenstein
Performic Acid Oxidation Solvents...
You rule. Now try to order a few barrels of TBME using the correct name.
There are so many non-IUPA ...
1-9-2007 at 11:48
by: Sergei_Eisenstein
Synthesis of Carboxylic Acid Esters
Browsing through the literature, I found a synthesis of amino acid ethyl esters that might interest ...
28-8-2007 at 11:32
by: Sergei_Eisenstein
The terrorists have won
Question: will people allow this to happen or will they - again - conform?

Projects like this are ...
14-8-2007 at 11:20
by: Sergei_Eisenstein
Islamburg & Cults of terror
[quote]Terrorists put themselves outside the law and they need to be treated with outside the law.[/ ...
12-8-2007 at 09:36
by: Sergei_Eisenstein
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