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Police Questions
[More pointless bile deleted]
[Edited on 31-12-2007 by I am a fish] |
31-12-2007 at 04:39
by: Sauron |
Metaphosphoric Acid Impregnated onto Pumice
At least the pumice is not a problem. Aldrich has vastly overpriced pumice while Acros is much more ... |
31-12-2007 at 04:02
by: Sauron |
Metaphosphoric Acid Impregnated onto Pumice
The problem with ambiguity, of course, is that it is so frigging ambiguous.
Several of the conden ... |
31-12-2007 at 03:05
by: Sauron |
Metaphosphoric Acid Impregnated onto Pumice
I am going to try and replicate an old procedure that uses "glacial phosphoric acid" on pumice as ca ... |
30-12-2007 at 23:07
by: Sauron |
Police Questions
[Pointless bile deleted]
[Edited on 31-12-2007 by I am a fish] |
30-12-2007 at 22:56
by: Sauron |
NEED SOME IODINE?
I have no brief for this fellow, but we usually don't deal in real identities on here.
I am as cu ... |
30-12-2007 at 11:23
by: Sauron |
Chlorination of MEK at 3-carbon
I found an old paper in J.Chem.Soc. Transactions (1919, pp.1404-1410) which states that 2-butene (or ... |
30-12-2007 at 10:03
by: Sauron |
Chlorination of MEK at 3-carbon
Thanks. H.C.Brown's original procedure for trimethylborane is in Brauer's books (and in JACS). It us ... |
30-12-2007 at 01:01
by: Sauron |
Chlorination of MEK at 3-carbon
See my remarks upthread. I am looking at Vogel's procedure for preparing 2-pentene from 2-pentanol ( ... |
29-12-2007 at 01:17
by: Sauron |
Pyridine synthesis/extraction
Pyridine is produced industrially by the reaction of acetaldehyde, formaldehyde and ammonia at eleva ... |
29-12-2007 at 00:04
by: Sauron |
Chlorination of MEK at 3-carbon
3-halo-2-butanone is starting material for preparation of 4,5-dimethylthiazole.
Commercial 3-chlo ... |
28-12-2007 at 15:27
by: Sauron |
Dimethylsulfate - synthesis
What he means by highly toxic is that DMS is a known human carcinogen and specific brain carcinogen, ... |
28-12-2007 at 15:09
by: Sauron |
Chlorination of MEK at 3-carbon
The Useless Reaction of the Year 2007 Award winner is from Canadian Journal of Chemistry.
Enol bo ... |
28-12-2007 at 02:23
by: Sauron |
NEED SOME IODINE?
See the current thread Only ScienceLab.com?
A post near the end gives a link to a site that appea ... |
28-12-2007 at 02:07
by: Sauron |
Chlorination of MEK at 3-carbon
Thanks, chemrox.
Methods D and F in the second paper both employ sulfuryl chloride and give c.89% ... |
27-12-2007 at 22:15
by: Sauron |
Chlorination of MEK at 3-carbon
I want to prepare 3-chloro-2-butanone and want to minimize any byproducts.
The procedure describe ... |
27-12-2007 at 20:07
by: Sauron |
NEED SOME IODINE?
Science Alliance = ScienceLab, biggest crooks on the Internet.
$300 a Kg for iodine?
No legiti ... |
27-12-2007 at 18:53
by: Sauron |
Where, or how can i get Alagebrium?
Sorry for the double post. Returning to the topic of 4,5-dimethylthiazole, here is a related but att ... |
26-12-2007 at 22:19
by: Sauron |
NEED SOME IODINE?
A lousy 170 g I2 of unstated purity, is not worth much, except of course to someone clueless about h ... |
26-12-2007 at 19:25
by: Sauron |
Where, or how can i get Alagebrium?
Aminoguanidine, besides being commercially available, can be prepared by means other than reduction ... |
26-12-2007 at 04:46
by: Sauron |
Where, or how can i get Alagebrium?
No one has mentioned the relationship between the thiazole ring and the vitamine, thiamin.
The re ... |
25-12-2007 at 20:04
by: Sauron |
Where, or how can i get Alagebrium?
In fact an example of the preparation of a 4-m4thyl-2-aminothiazole is given in Vogel 3rd edition an ... |
25-12-2007 at 19:16
by: Sauron |
Where, or how can i get Alagebrium?
Thanks, O3
The most facile prep of 4,5-dimethylthiazole I have been able to figure out is to star ... |
25-12-2007 at 09:06
by: Sauron |
Where, or how can i get Alagebrium?
The precursors are nasty.
The patents are very broad and not especially helpful, but, one of the ... |
25-12-2007 at 08:02
by: Sauron |
Where, or how can i get Alagebrium?
This would not be a difficult preparation at all.
Undoubtedly the prep has been described in the ... |
25-12-2007 at 02:58
by: Sauron |
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