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Preparation of Isonicotinic Acid and Ethyl Isonotinate
Isonicotinic acid is of course pyridine-4-carboxylic acid and is related to the important vitamin Ni ... |
6-5-2007 at 19:58
by: Sauron |
Enforcing basic rules.
Balderdash.
Perhaps @Rosco has been imbibing of demon rum
But he doesn't sdtrike me as the st ... |
5-5-2007 at 22:58
by: Sauron |
Potential uses of Citric Acid
Apologies for double post, previous one getting cumbersome and this is a significant tangent.
Fou ... |
5-5-2007 at 21:26
by: Sauron |
methylene ether?
IIRC dibromoethane (methylene bromide) or diiodomethane (methylene iodide) are the classical reagent ... |
5-5-2007 at 19:54
by: Sauron |
Bromine + sulphur
@woelen, did you keep track of the relative masses of Br2 and S8 you combined?
My gess is that wh ... |
5-5-2007 at 18:38
by: Sauron |
Acetic anhydride pondering
Think out loud all you like. However the transformation you are thinking about can't be done. Acetic ... |
5-5-2007 at 18:14
by: Sauron |
Acetic anhydride pondering
I suspect our colleague was just thinking out loud on the keyboard... |
4-5-2007 at 23:22
by: Sauron |
Acetic anhydride pondering
I didn't realize there was any shortage of succinic acid.
If you wanted to prepare it in the lab ... |
4-5-2007 at 22:45
by: Sauron |
Potential uses of Citric Acid
As I was saying the dry distillation (solventless melt) seems to be the most practical lab scale pre ... |
4-5-2007 at 21:44
by: Sauron |
Nucleic acid synthesis
No image is apparent. |
4-5-2007 at 09:52
by: Sauron |
An Idea
I don't think that tertiary nitro ester looks very stable. |
4-5-2007 at 08:40
by: Sauron |
Potential uses of Citric Acid
I looked over the Aries patent again. If we are to believe it, then the polyols are indeed supposed ... |
4-5-2007 at 07:38
by: Sauron |
Potential uses of Citric Acid
Don't know about the Zn dust. However the two fellows who started all this in 1884 teach that citraz ... |
4-5-2007 at 05:30
by: Sauron |
Potential uses of Citric Acid
No mention made of UV. Sunlight even indirectly ought to suffice (as it does for fluorscein.)
I t ... |
4-5-2007 at 01:51
by: Sauron |
Bromine + sulphur
My recollection was that in the nineteenth and early 20th centuries there was endless wrangling over ... |
4-5-2007 at 00:36
by: Sauron |
Potential uses of Citric Acid
Having slept on the matter I have come to think there are two possibilities.
1. My initial readin ... |
3-5-2007 at 21:20
by: Sauron |
Potential uses of Citric Acid
Sorry about the double post.
@UC, heads up. See following from Ullman's. This might throw some li ... |
3-5-2007 at 14:13
by: Sauron |
Nucleic acid synthesis
I think you mean uridine rather than uracil. Uracil is not a nucleoside; uridine is. |
3-5-2007 at 13:57
by: Sauron |
Bromine + sulphur
Assuming that S2Br2 behaves anything at all like SCl2 and S2Cl2, then sulfur will be very soluble in ... |
3-5-2007 at 13:52
by: Sauron |
Potential uses of Citric Acid
Thanks, @Nicodem. It was making me crazy all morning.
You reckon the archive was corrupted by edi ... |
2-5-2007 at 22:57
by: Sauron |
Potential uses of Citric Acid
Already tried, tried again 5 times. With both WinZip and Win RAR no go. Tried opening, tried saving, ... |
2-5-2007 at 19:54
by: Sauron |
Potential uses of Citric Acid
Just woke up and was pleased to find a further gift from @Nicodem to start off my day. Will go unwra ... |
2-5-2007 at 17:43
by: Sauron |
Potential uses of Citric Acid
Yes I just finished reading the Pfizer patent (aq ammonia, ammonium citrate, heat and pressure) and ... |
2-5-2007 at 10:50
by: Sauron |
Potential uses of Citric Acid
Why thanks @Nicodem, very obliging of you. I just found an even hoarier paper from Ber. pp 2681-2699 ... |
2-5-2007 at 05:15
by: Sauron |
heterocycles and red goo
Absolutely. That's what short path stills, kugelrohrs etc are for. And as you say sometimes chromato ... |
2-5-2007 at 00:58
by: Sauron |
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