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P2P from recycled styrene?
[quote][i]Originally posted by Sauron[/i]
There's a big difference between him and those of us who ... |
6-4-2007 at 03:01
by: Nicodem |
Frustrating Chemical
Just for the record, the Houben-Hoesch reaction for preparing 2,4,6-trihydroxyacetophenone is featur ... |
5-4-2007 at 23:33
by: Nicodem |
Frustrating Chemical
The reaction is called the [url=http://www.jergym.hiedu.cz/~canovm/mechanic/pravidl2/hoe/h.htm]Hoube ... |
5-4-2007 at 22:20
by: Nicodem |
Nitrobenzene
The chlorine and other halogen substituents on benzene are ortho/para directing for electrophilic su ... |
5-4-2007 at 09:49
by: Nicodem |
Frustrating Chemical
Why don't you use the usual method for preparing 2,4,6-trihydroxyacetophenone, the reaction of flour ... |
5-4-2007 at 00:44
by: Nicodem |
washes and extractions
Heating the emulsion up to the boiling point of CH2Cl2 often efficiently breaks it (not always thoug ... |
5-4-2007 at 00:23
by: Nicodem |
Prep. of EtNO2 using acetone as solv.
[quote][i]Originally posted by Furch[/i]
Sure, my common sense tells me that as well... But I also ... |
4-4-2007 at 23:28
by: Nicodem |
washes and extractions
But at the stage of drying with Na2SO4, the hydrochloride salt is already formed and in solution? Al ... |
3-4-2007 at 23:16
by: Nicodem |
Benzoquinone from Paracetamol
[quote][i]Originally posted by tupence_hapeny[/i]
My only interest is basically whether it is or is ... |
3-4-2007 at 09:57
by: Nicodem |
Using [Cu(Cl)4]2- to activate Al for reductions
Well, actually if a compound gets consumed during the course of a reaction, then it can not be calle ... |
3-4-2007 at 00:38
by: Nicodem |
washes and extractions
No, diethyl ether is anything but comparable to THF by its solvating properties.
Amine sulfates a ... |
3-4-2007 at 00:17
by: Nicodem |
reductive am. why inert atmosphere?
Whether the inert atmosphere is truly necessary or not can not be answered without knowing what the ... |
3-4-2007 at 00:07
by: Nicodem |
washes and extractions
Volumes? That is up to you. I can not answer you that.
No, bubbling HCl through the CH2Cl2 phase ma ... |
2-4-2007 at 00:09
by: Nicodem |
washes and extractions
1.) Yes it now makes sense.
2.) Just follow the instructions, the workup as it is, is just fine.
... |
1-4-2007 at 23:42
by: Nicodem |
Uses for acrylamide
Ups, sorry, I was not thinking much about what the product was. You are right and it should have add ... |
1-4-2007 at 23:28
by: Nicodem |
washes and extractions
I agree with Sandmeyer, but have to add a note of cautiousness that there are lots (well, relatively ... |
1-4-2007 at 14:01
by: Nicodem |
washes and extractions
There is something terribly illogical in your extraction procedure.
Your substance is obviously pre ... |
1-4-2007 at 11:54
by: Nicodem |
Uses for acrylamide
Well, a bunch of things are carcinogenic. Who cares except for the non-chemists?
Anyway, acrylamide ... |
1-4-2007 at 10:39
by: Nicodem |
n-methyl-3,4-Dihydroxyphenylalanine (orgsyn)
I had no time to reply to some previous posts though I wanted to, so…
[quote][i]Originally posted ... |
1-4-2007 at 10:24
by: Nicodem |
Pyridine hydrogenation - methods?
[quote][i]Originally posted by chemrox[/i]
[quote]NaBH4 only reduces quarternary pyridinum salts to ... |
1-4-2007 at 01:24
by: Nicodem |
n-methyl-3,4-Dihydroxyphenylalanine (orgsyn)
Confusing lots of stuff again? It is getting a habit already. 
The US5936103 patent is about me ... |
31-3-2007 at 05:48
by: Nicodem |
Pyridine hydrogenation - methods?
[quote][i]Originally posted by MattEx[/i]
You said: [i]"Anyway, this is obviously irrelevant since ... |
31-3-2007 at 01:16
by: Nicodem |
Eschweiler-Clarke for Ethyl or Propyl groups
[quote][i]Originally posted by Nicodem[/i]
The Leuckart reaction with aldehydes containing alpha-hy ... |
30-3-2007 at 01:49
by: Nicodem |
n-methyl-3,4-Dihydroxyphenylalanine (orgsyn)
[quote][i]Originally posted by tupence_hapeny[/i]
So, back to the title reaction, the double-bond c ... |
30-3-2007 at 01:12
by: Nicodem |
n-methyl-3,4-Dihydroxyphenylalanine (orgsyn)
I can work with concentrated aqueous HI any time I want without worrying about any legal consequence ... |
29-3-2007 at 03:45
by: Nicodem |
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