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Alternative solvents to DMF
I have a similar question. Can I use DMSO, NMP or acetonitrile instead of DMF when converting a subs ... |
5-6-2006 at 12:46
by: IPN |
need software: mathematica
Could someone be so kind as to upload the mathematica iso-file to one of the FTPs? |
31-5-2006 at 04:47
by: IPN |
Glyoxime, Diaminofurazan and Some Energetic Derivatives
This is just beautiful! Excellent work Axt! 
Can't wait to get to try these myself!
Would it b ... |
17-5-2006 at 11:46
by: IPN |
diels alder with less reactive dienophiles
You could try the reaction with a lewis acid (something like AlCl3) as those generally activate dien ... |
9-5-2006 at 03:42
by: IPN |
Purifying old TNT
You could recrystallize it from toluene or ethanol few times to get it relatively pure. Check the so ... |
2-4-2006 at 03:30
by: IPN |
Al/Hg celite HgCl2 question
You could use the easily generated H2S (FeS + HCl for example) to precipitate basically all Hg from ... |
14-3-2006 at 06:07
by: IPN |
Nitronate.....
I'm not sure but I think the book might have been this:
[quote]
Torssell, Kurt B. G.
Nitrile Ox ... |
9-2-2006 at 12:01
by: IPN |
5-azidotetrazole synth gone horribly wrong
Check Propellants, Explosives, Pyrotechnics vol 30 page 17. There is described the synthesis of azid ... |
19-1-2006 at 08:03
by: IPN |
5-azidotetrazole synth gone horribly wrong
Artem:
No I didn’t neutralize the solution, this probably resulted in large amounts of CuO as the ... |
17-1-2006 at 09:14
by: IPN |
5-azidotetrazole synth gone horribly wrong
Oh yes, I forgot to tell about the reaction.
Found the procedure in COPAE (page 447) and it basic ... |
14-1-2006 at 11:48
by: IPN |
5-azidotetrazole synth gone horribly wrong
Ok.. about 5 minutes ago I formed a hazardous situation while testing the preparation of 5-azidotetr ... |
14-1-2006 at 06:31
by: IPN |
Picric acid: different instructions
The amounts look quite reasonable to me but I don't think you need to cool the sulfonated product so ... |
26-12-2005 at 14:20
by: IPN |
Question about Bomex equipment
Most of my beakers and erlenmeyers are the bomex type but I haven't had much problems with them. The ... |
10-12-2005 at 13:08
by: IPN |
Acetic anhydride preparation
This is what Practical Methods of Organic Chemistry (Gattermann) says about detecting acetic anhydri ... |
10-12-2005 at 02:18
by: IPN |
Substitute glacial acetid acid with 98% acetic acid?
Actually, the glacial is 100% waterfree acetic acid (CH3COOH) and the acetic anhydride ((CH3CO)2O) i ... |
22-11-2005 at 09:35
by: IPN |
Dissolving niobium metal
From "A Treatise on Chemistry by H.E. Roscoe (Vol IIb 1880)" :
[quote]
It is hardly at ... |
22-11-2005 at 07:29
by: IPN |
nicotinic acid --> pyridine
You might wan't to read through the benzene synthesis [url=https://sciencemadness.org/talk/view ... |
24-10-2005 at 11:41
by: IPN |
toluene --> benzaldehyde
Posted at Synthetikal by IndoleAmine:
[quote]
Just wanted to mention that Na2S2O8 oxidations of ... |
24-10-2005 at 10:40
by: IPN |
alternative oxidizers for hydrazine production
Hydrazine and acetone will react to form a ketazine, though that can be hydrolysed back to it's ... |
24-10-2005 at 01:03
by: IPN |
Nitric acid
Redistill from H2SO4. It's probably just too weak to dissolve copper. |
27-9-2005 at 10:50
by: IPN |
CTH (Pd/C, KCOOH) problems
How pure was the KCOOH and nitroalkane? And how long reaction times did you use? |
14-9-2005 at 05:48
by: IPN |
H2SO4
If the dye is only as a very fine suspension then yes. Remember to use strong tubes, preferably made ... |
3-9-2005 at 09:00
by: IPN |
Glyoxal Synthesis
Here is what Ullmann says about Glyoxal synthesis:
[quote]From Acetaldehyde. Oxidation with nitri ... |
2-9-2005 at 10:41
by: IPN |
Separation of NaCl and KCl
Just use the salt mix as is. No need to purify as the NaCl just stays in solution and KClO3 will pre ... |
27-8-2005 at 00:24
by: IPN |
alpha-chloropropionic acid ethyl ester
Could lactic acid be dehydrated first (I have it as an 80% aqueous solution) with anhydrous CaCl2 an ... |
23-8-2005 at 00:57
by: IPN |
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