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Drying HBr... has anyone considered this?
i was contemplating generating some anhydrous HBR from the crude acid and CaCl2, was suggested. It's ... |
2-11-2008 at 20:52
by: jon |
2,5-dimethoxyphenyl-2-nitropropene synthesis - 89.3% yield
what's polymerizing? the aldehyde or the iminium intermediate? or, the nitro styrene?
if the former ... |
31-10-2008 at 22:00
by: jon |
Carboxylic acid -> Alkan
on the subject of the kolbe reaction it don't work here, you get dimers because the intermediates ar ... |
31-10-2008 at 21:20
by: jon |
Carboxylic acid -> Alkan
i.e. the chiral center remains the same unless it's"umbrellas" like in an sn2 reaction |
20-8-2008 at 10:36
by: jon |
Carboxylic acid -> Alkan
wait a minute? so your saying d,l isomer won't yeild d,l on reduction? where did this information co ... |
20-8-2008 at 10:20
by: jon |
Carboxylic acid -> Alkan
phosphine gas formation may i sugguest you prige your vessel next time it spontaously goes boom in c ... |
15-8-2008 at 13:19
by: jon |
Preparation of methyl tosylate, safe methylating agent
you use an akly halide and a primary amine in dmf along with mol. seives and Cs(OH)II.H2O
the cesiu ... |
13-8-2008 at 18:13
by: jon |
Preparation of methyl tosylate, safe methylating agent
google n-alklylation and cesium you'll like it |
13-8-2008 at 18:10
by: jon |
Amino alcohol via Akabori, trial run
benzylamine is only formed about 1-3% it is soluble in h2o completely not an issue. diphenylethanola ... |
1-5-2008 at 19:03
by: jon |
reductive methylation amino acids
akabori reaction |
1-5-2008 at 18:57
by: jon |
In Search of NaBH4
one answer kbh4 pottassiumtetraborohydrite
it find leitimate use, "boiling making" and water treatm ... |
15-4-2008 at 20:32
by: jon |
Salvinorin - finally a total synthesis
i'd have to argue with that one, it depends on where you live.
where i live even, people with recor ... |
5-4-2008 at 11:57
by: jon |
Salvinorin - finally a total synthesis
not to argue with you nicodem you get my respect as being one of the most knowledgable people around ... |
5-4-2008 at 10:27
by: jon |
Salvinorin - finally a total synthesis
you guys google herkinorin a derivitave of this 100X the affinity with the mu recetor made by a simp ... |
4-4-2008 at 12:52
by: jon |
NaBH4/H4BK
kbh4 is easier to explain too it's used in water treatment. |
4-4-2008 at 12:47
by: jon |
Amino alcohol via Akabori, trial run
nope it won't work you need 2-bromopropionic acid, that's in org. synthesis you can look it up onlin ... |
22-12-2007 at 18:20
by: jon |
bromination of phenyl group
I've always heard you did'nt want uv light of any kind in benzene mono-bromination you would wind up ... |
21-12-2007 at 17:02
by: jon |
problems with NaBH4 ....
maybe a typo but the principle works with the rag over the beaker it keeps the stench down. |
20-12-2007 at 19:02
by: jon |
problems with NaBH4 ....
right nabh4 reacts with water and alcohol vigorously when the ph is 6 or lower I believe. but in bas ... |
17-12-2007 at 19:05
by: jon |
Amino alcohol via Akabori, trial run
the reaction don't go that way first the benzaldehyde condenses on the alanine decarboxylation takes ... |
13-12-2007 at 14:19
by: jon |
dumbshit question of the week - reversed ester
mptp gets produced when the 4-hydroxy intermediate gets dehydrated under acidic conditions. a strong ... |
14-10-2007 at 12:08
by: jon |
The mechanism of that prodine synthesis?
I know the first step is a pairing up of the pi system of the formaldimine moiety with the styrene d ... |
14-10-2007 at 12:00
by: jon |
replacement of diethyl ether
mbte, or isopropyl ether depending on the amine, toulene, xylene, benzene to name a few dcm will wor ... |
11-8-2007 at 15:47
by: jon |
spent Pd/C recycling/reactivation
you have to get all the poisons off the catalyst that's the pupose of using a basic solution. hydrog ... |
8-8-2007 at 15:45
by: jon |
spent Pd/C recycling/reactivation
there was an article where they used basic solutions containing naoh to reactivate it.
a process op ... |
5-8-2007 at 15:30
by: jon |
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