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TEMPO substitute?
Very good work Klute and very inspiring and detailed procedures you are showing us, thank you!

I ...
1-8-2008 at 05:47
by: Ullmann
Ethyl/Isopropyl Bromide preparation
See at orgsyn:

[url=]orgsyn cv1p ...
1-8-2008 at 03:43
by: Ullmann
Asymmetric Etherification of 1,4-dihydroxybenzene
I agree with klute the methylated compound you get must be p-Meo-phenol through the presence of some ...
13-5-2008 at 07:02
by: Ullmann
Question about 2-nitropropane
Those butane compound are described in the ariadne entry #8 of pihkal. Tests on labrats showed them ...
4-8-2007 at 06:30
by: Ullmann
LiOCH3 to replace NaOCH3?
[quote]You were using it with DMF, right? In such case it would be unlikely to work anyway since the ...
24-6-2007 at 14:33
by: Ullmann
Paracetamol --> 2,5-dimethoxyallylbenzene
It is a very long route to a not so useful substrate IMHO. You would do best to search another way t ...
24-6-2007 at 14:04
by: Ullmann
LiOCH3 to replace NaOCH3?
Check this link:

[url=]Synthesi ...
24-6-2007 at 12:48
by: Ullmann
Novel route to Methylone?
There is a nice paper about FC reaction using the free acid and carbon/p-toluenesuphonic acid as cat ...
13-1-2007 at 16:14
by: Ullmann
Several questions regarding Eugenol
[quote][i]Originally posted by jon[/i]
refluxing in HBr should accomplish both Bromination, and dem ...
3-1-2007 at 11:10
by: Ullmann
3,4,5-trimethoxynitrostyrene reduction fun
[quote][i]Originally posted by mescalaniousmelvin[/i]

What do you think about scale up, ...
27-11-2006 at 10:22
by: Ullmann
3,4,5-trimethoxynitrostyrene reduction fun
Check [url=]this thread[/url] for a Al reduct ...
26-11-2006 at 15:24
by: Ullmann
Meta-Escaline via Ullmann on Bourbonal
Hi all,

Here is a synthesis of Meta-Escaline sulfate (ME.(SO4)1/2) via the Ullmann methoxylation ...
15-11-2006 at 18:54
by: Ullmann
TMA-2: Several questions on a particular synthesis
Yes, i agree with your point Sandmeyer, fun is not very appropriate for this particular compound... ...
5-11-2006 at 17:23
by: Ullmann
Good news from Dr. Nichols: 1-Aminomethylbenzocycloalkanes
Well, i would better said that the real problem with aryne pathway is side reactions between the bas ...
3-11-2006 at 19:39
by: Ullmann
Cell for smallscale electroreduction of nitroalkenes
Is there any practical advantage of using a mercury cathode instead of a lead cathode?

As judged ...
28-10-2006 at 05:27
by: Ullmann
Good news from Dr. Nichols: 1-Aminomethylbenzocycloalkanes
The dibromo-quinone is easily made by addition of bromine to a quinone solution in DCM at 0°C in a ...
22-10-2006 at 16:15
by: Ullmann
Good news from Dr. Nichols: 1-Aminomethylbenzocycloalkanes
What is the problem with the same route than the authors but generating the aryne from bromo-dimetho ...
22-10-2006 at 08:40
by: Ullmann
Well, IMHO better to do a methoxylation than an hydroxylation... it is easily done and workup is as ...
7-6-2006 at 13:59
by: Ullmann
methylene iodide
[quote]As you probably know the chloride anion is a stronger nucleophyle than the iodide in dipolar ...
1-5-2006 at 06:57
by: Ullmann
For 25mmol of such a sweet substrate my guess would be that you could try maybe 100mg of isopropylam ...
10-4-2006 at 12:29
by: Ullmann
[quote]That thread is painful to read[/quote]

I did not even try.... ;-)
13-9-2005 at 12:19
by: Ullmann
A few comments - other view of the situation
Enima :

I personally feel that mild so-called HPPD is sign of a healthy mind, consider yourself ...
21-1-2005 at 21:02
by: Ullmann

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