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Preparation of methyl tosylate, safe methylating agent
When you talk about TMP don't you mean trimethyl phosphite ((MeO)3P) rather than trimethyl phosphate ... |
11-8-2008 at 11:41
by: Sauron |
BTATz & its salts
No question, many of his images do cause formatting problems, because they exceed the maximum allowe ... |
10-8-2008 at 20:52
by: Sauron |
Toxicity of phosgene
Sartori describes decomposition of oxalyl chloride to CO and phosgene under three conditions:
-- ... |
10-8-2008 at 11:24
by: Sauron |
Toxicity of phosgene
All good sound advice.
My advocacy os triphosgene and diphosgene as replacements for phosgene, t ... |
10-8-2008 at 10:52
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
Hydrolysis of oxalyl chloride proceeds through the half chloride which is extremely unstable and fal ... |
10-8-2008 at 02:58
by: Sauron |
Ethyl centralite synthesis
Thanks, vulture, I will endeavor to do so at all times.
[Edited on 11-8-2008 by Sauron] |
10-8-2008 at 00:01
by: Sauron |
Toxicity of phosgene
Not everyone here is a lens-louse, len1. Your disdain for your fellow members is unbecoming. You are ... |
9-8-2008 at 21:45
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
You put too much faith in MSDS. The instability of oxalyl chloride over time (limited shelf life) is ... |
9-8-2008 at 21:30
by: Sauron |
Toxicity of phosgene
I believe the thread author started off mentioning how we shun phosgene like the plague. Not everyon ... |
9-8-2008 at 21:09
by: Sauron |
Toxicity of phosgene
As I said. Insidious.
Very very few of the industrial chemicals tested or used as war gases have ... |
9-8-2008 at 12:20
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
Twenty years old? I'm afraid that oxalyl chloride is rather notorious for having a short shelf life, ... |
9-8-2008 at 12:15
by: Sauron |
Toxicity of phosgene
That's easy. Phosgene is insidious, chlorine is not. If chlorine is present in harmful concentration ... |
9-8-2008 at 12:00
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
For best results I'd buy anhydrous oxalic acid in package size consistent with experimental scale an ... |
9-8-2008 at 10:44
by: Sauron |
One for the Energetics Boffins
Just the sort of exagerated hazard assesments I am complaining about.
What is happening as a resu ... |
9-8-2008 at 10:20
by: Sauron |
One for the Energetics Boffins
HBTU has been widely used in both lab abd industry as a peptide reagent for many decades. So there i ... |
9-8-2008 at 09:46
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
Phosgene is usually prepared (by this sort of method) from oleum and CCl4 or CHCl3 and chromic acid. ... |
9-8-2008 at 09:40
by: Sauron |
HOOC-COOH + SOCl2 -> ClOC-COCl ?
I can't tell you what you made but obviously it was not oxalyl chloride.
There is no need to call ... |
9-8-2008 at 08:32
by: Sauron |
One for the Energetics Boffins
Probably because the "explosive" nature of HBTU has been greatly overhyped by the EU HBTU is a commo ... |
9-8-2008 at 08:06
by: Sauron |
Ethyl centralite synthesis
Here's the take from PATR 2700 Volume 3: useful or at least interesting perspective on the technolog ... |
8-8-2008 at 22:52
by: Sauron |
Nitration with nitryl fluoride
There's a company called Fluorochem that specializes in this sort of thing.
IIRC they are on the ... |
8-8-2008 at 11:14
by: Sauron |
Buss Loop Reactors
Lots of bench scale autoclaves, say 1 to 5 L, have either packed gland or magnetically coupled stirr ... |
8-8-2008 at 03:17
by: Sauron |
Ethyl centralite synthesis
Here is the CA abstract for the 1988 Chem Ind article.
"A non-phosgene route for the synthesis ... |
8-8-2008 at 03:06
by: Sauron |
Ethyl centralite synthesis
The Synthesis article cited in EP above wasfrom 1984 and concerned N-alkylation of cyclic thioureas, ... |
8-8-2008 at 00:57
by: Sauron |
Ethyl centralite synthesis
Thanks. I was going too fast and transposed those.
Anyway the isocyanate route and the trisubstit ... |
8-8-2008 at 00:44
by: Sauron |
Ethyl centralite synthesis
According to the introductory section of that US patent above, all prior art teaches that N-alkylati ... |
7-8-2008 at 23:24
by: Sauron |
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