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Cu/SiO2 a cheap versatil hydrogenation catalyst?
In [i]Tet. Lett. 1986, vol. 27, No. 10, pp 1205-1208[/i] they compare a Cu2+/borohydride-system wit ... |
5-12-2008 at 05:56
by: Barium |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Klute,
If I ever find my silica gel I'll try to make the same copper catalyst using sodium borohy ... |
4-12-2008 at 07:46
by: Barium |
Synthesis of phthalocyanine
The excess acetic anhydride is simply acting as a solvent. It is a damn good solvent and the excess ... |
20-11-2008 at 13:01
by: Barium |
Cl Reduction from arylcyclohexylamine
Use a palladium catalyst. I'm not sure which carrier is most suitable but my guess would be a basic ... |
18-11-2008 at 01:25
by: Barium |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Very, very nice work Ullmann! |
8-11-2008 at 09:46
by: Barium |
Reductions of Nitro groups with Zn and acid
Steve/Fred
There is actually, believe it or not, a limit to my patience. I know of several member ... |
29-10-2008 at 16:11
by: Barium |
Reductions of Nitro groups with Zn and acid
[quote][i]Originally posted by Isomeric_Fred[/i]
Perhaps you omitted some important side notes whic ... |
28-10-2008 at 05:17
by: Barium |
The CTH Writeup by Barium as Tried Out by Bandil. Sciencemadness Members Clear Things Up!
One day you ask me to give more details about developments of a particular procedure and the next da ... |
22-10-2008 at 03:57
by: Barium |
The CTH Writeup by Barium as Tried Out by Bandil. Sciencemadness Members Clear Things Up!
I beg to differ Steve. I have even performed several reductions where the substrate have not been pr ... |
21-10-2008 at 13:29
by: Barium |
2,5-dimethoxyphenyl-2-nitropropene synthesis - 89.3% yield
[quote][i]Originally posted by stoichiometric_steve[/i] .....activated Aldehydes give mostly polymer ... |
21-10-2008 at 03:45
by: Barium |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
[quote][i]Originally posted by stoichiometric_steve[/i]
[quote][i]Originally posted by Barium[/i]
... |
21-10-2008 at 03:34
by: Barium |
The CTH Writeup by Barium as Tried Out by Bandil. Sciencemadness Members Clear Things Up!
In which CTH is that critical Steve? |
21-10-2008 at 03:25
by: Barium |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Steve, which substrate have you tried nickel boride on? |
15-10-2008 at 08:14
by: Barium |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
D. E. Nichols, Synthesis of alpha-Alkyltryptamines, J. Org. Chem., 51, 4294-4295 (1986)
http://www ... |
14-10-2008 at 15:39
by: Barium |
Catalytic Hydrogenation
Then why the trouble to recrystallize the product to make the "ice" appearance? Nah, those idiots si ... |
14-10-2008 at 04:01
by: Barium |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Klute,
I have prepared both P1 and P2 nickel boride in different ways. P1 was prepared in the usu ... |
13-10-2008 at 19:56
by: Barium |
Catalytic Hydrogenation
I seriously doubt that Zed! The vast majority of these guys are far from rocket scientists and even ... |
13-10-2008 at 19:20
by: Barium |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Nice work Klute!
Even if you didn't get the result you were hoping for you still got some valuab ... |
28-9-2008 at 07:50
by: Barium |
6-Bromo-1-hexanol synthesis
It's sooo encouraging to see that the chem industry is operated by competent people.  |
23-9-2008 at 16:19
by: Barium |
Gas-phase apparatus construction
[quote][i]Originally posted by Magpie[/i]
Acetone feed rate was 2mL/min, and acetone recovery was 3 ... |
21-9-2008 at 05:17
by: Barium |
PTFE or Glass Stopcocked titration burette?
PTFE is ok for nitric acid. |
19-9-2008 at 11:57
by: Barium |
Catalytic Hydrogenation comments......
[quote][i]Originally posted by gsd[/i]
For reduction of C = O to C- H.
2) U-Ni-A : Was nearly as ... |
19-9-2008 at 11:54
by: Barium |
Reduction of carboxylic acid to alcohol!
[quote]Given what you have said, I agree with Barium that diborane based methods are likely the best ... |
16-9-2008 at 08:57
by: Barium |
Reduction of carboxylic acid to alcohol!
Diborane can be made in situ and then safely be used for reaction volumes of several thousands of ga ... |
16-9-2008 at 06:28
by: Barium |
Reduction of carboxylic acid to alcohol!
1. It would help if you provided the proper information about the trials using diborane generated fr ... |
16-9-2008 at 03:21
by: Barium |
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