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3,5-Dinitrosalicylic acid
I would not expect any difficulty introducing the second nitro group. The phenolic -OH is a powerful ... |
9-7-2007 at 23:45
by: Sauron |
What do to with these weird chemicals?
Sounds like the fellow had eclectic interests.
A couple nutritional supplements, a few dyes & ... |
9-7-2007 at 18:02
by: Sauron |
HBTU and Other Peptide Reagents - Preparation
According to the literature, 2,4-dinitrochlorobenzene is about 2000 times more reactive at the halog ... |
9-7-2007 at 01:05
by: Sauron |
N-Halosuccinimide Solvents Workaround ??
You would preclude dichlorination by using the exact stochiometric qty or reagent for monochlorinati ... |
8-7-2007 at 20:45
by: Sauron |
Nonspecific Descriptions Found in Chemistry Procedures
If I may digress just a little, I suggest reading the sixth Harry Potter book, in particular all the ... |
8-7-2007 at 07:28
by: Sauron |
Nonspecific Descriptions Found in Chemistry Procedures
The last time I saw "was run overnight" was rather recently in an article from the 1920s. However th ... |
7-7-2007 at 21:52
by: Sauron |
Nonspecific Descriptions Found in Chemistry Procedures
I've been working with preps containing all or most of those terms all my life and do not find them ... |
7-7-2007 at 20:33
by: Sauron |
HBTU and Other Peptide Reagents - Preparation
The choice of coupling reagent was not mine, it was redbaron's.
He mentioned only HBTU and PyBOP ... |
7-7-2007 at 17:25
by: Sauron |
HBTU and Other Peptide Reagents - Preparation
Sorry, but your premises are erroneous.
No one is paying me to "promote" anything on this forum. ... |
7-7-2007 at 16:08
by: Sauron |
HBTU and Other Peptide Reagents - Preparation
Someone was asking about where to buy HBTU, PyBOP etc that would be amateur friendly.
As there do ... |
6-7-2007 at 22:48
by: Sauron |
about methyl nicotinate
You asked about methylating the NH group in methyl nicotinate
There is no NH group in methyl nico ... |
5-7-2007 at 19:33
by: Sauron |
reduction of L-Prolinamide
Google it.
Why did LAH give a "disappointing result"? |
5-7-2007 at 19:23
by: Sauron |
A Twofer Prep - Two Acyl Chlorinating Reagents Made at One Step
No gas mask needed as no gas (HCl) is liberated.
@GC, the fly in the ointment with making benzoyl ... |
3-7-2007 at 22:59
by: Sauron |
Peptide coupling reagents?
I can't recommend mislabelling a shipment as that is a sure way to get it confiscated if Customs che ... |
3-7-2007 at 22:48
by: Sauron |
A Twofer Prep - Two Acyl Chlorinating Reagents Made at One Step
Phthaloyl chloride and benzoyl chloride are the only products and in near quantitative yields when p ... |
3-7-2007 at 02:18
by: Sauron |
Peptide coupling reagents?
As I haven't resided in US for two decades and never imported chemicals when I did, I can't comment. |
3-7-2007 at 01:56
by: Sauron |
Acetic anhydride preparation
This "lab" doesn't have a GC, a HPLC, a NMR?
Hogworts could do better. |
2-7-2007 at 18:30
by: Sauron |
oxalyl chloride prep. with Ac2O and Cl2 ?
Thanks for correction.
I misstated Kyrides' findings a little. It is possible to obtain succinyl ... |
1-7-2007 at 10:49
by: Sauron |
Police Seize Huge Cache Of Explosives From Colorado Home
WMD meand only chemical, biological and nuclear weapons.
Properly used it means military weaponiz ... |
1-7-2007 at 09:31
by: Sauron |
oxalyl chloride prep. with Ac2O and Cl2 ?
GC is correct.
PCl5 according to his experience can't be made from red P and Cl2, only from WP an ... |
1-7-2007 at 09:10
by: Sauron |
Acetic anhydride preparation
That is a DejaVu file and not a pdf
You need the free Lizard Tech Deja Vu reader, or another simi ... |
1-7-2007 at 08:41
by: Sauron |
oxalyl chloride prep. with Ac2O and Cl2 ?
PCl5 is too expensive and too hard to get. Thionyl chloride and sulfuryl chloride are mostly banned ... |
30-6-2007 at 12:37
by: Sauron |
Acetic anhydride preparation
No you cannot "recover" acetic anhydride from aspirin nor paracetamol.
There are altogether about ... |
30-6-2007 at 12:22
by: Sauron |
keten lamp
I FINALLY got a quote on 2.5 L vinyl acetate monomer, lab grade from Acros and it is cheap enough (m ... |
29-6-2007 at 23:51
by: Sauron |
Police Seize Huge Cache Of Explosives From Colorado Home
"Destructive device" is a catch-all term under the Gun Control Act of 1968 that amended the National ... |
29-6-2007 at 16:30
by: Sauron |
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