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reductive dehalogenation of aromatic cmpds
i used this method

1.2 eq potassium formate 5 mol % pd/c could be 5 could be 10% it goes the sam ...
23-12-2012 at 16:44
by: jon
debrominating 2-Br-Lysergic Acid / Lysergamides
ah yes walden inversion at c-8 with strong bases this only happens if there is locallized high ph.
...
11-12-2012 at 23:52
by: jon
debrominating 2-Br-Lysergic Acid / Lysergamides
base in methanol then crash with water.
11-12-2012 at 17:48
by: jon
14-hydroxy-7,8-dihydro-codeinone to 14-Hydroxydihydromorphinone via HBr or HCl
i just wanted to throw in a paper where the esterifyl naltrexone with cinnamic anhydride using 3 pro ...
16-11-2012 at 20:53
by: jon
14-hydroxy-7,8-dihydro-codeinone to 14-Hydroxydihydromorphinone via HBr or HCl
yeah but 300X fence is still pretty good considering the n-cpm is intact it has no significance at t ...
12-11-2012 at 10:18
by: jon
14-hydroxy-7,8-dihydro-codeinone to 14-Hydroxydihydromorphinone via HBr or HCl
we were modeling the 14 hydrocinnamoyl ester of naltrexone turns out it satisfied all of the SAR cri ...
11-11-2012 at 19:22
by: jon
14-hydroxy-7,8-dihydro-codeinone to 14-Hydroxydihydromorphinone via HBr or HCl
i know they prefer to use the poisoned version of Pd because it rearranges that 4,5 epoxide bride (r ...
11-11-2012 at 17:47
by: jon
Benzyllic Ketone Catalytic Transfer Deoxygenation (paper request)
that's on rhodium's page, boy you sure like CTH.
it is done in acetic acid at higher temps

i do ...
10-11-2012 at 15:29
by: jon
Alternative to DCE or THF
i stand corrected
9-11-2012 at 14:40
by: jon
Alternative to DCE or THF
common knowledge in NaBH(CN)3 reductions you use ammonium acetate there is a certain ketone reduced ...
9-11-2012 at 13:46
by: jon
New tramadol to M1 ref discovered, EASY
the errant methyl thiophenol is rotten smelling detectable in the single digits of ppm.
you would h ...
9-11-2012 at 11:22
by: jon
Acetic anhydride preparation
your distilling it to hot i've made that mistake and heated this polluted anhydride under vacum and ...
8-11-2012 at 21:10
by: jon
Alternative to DCE or THF

[quote]
TextYou maybe right Jon, but I can't go down to the store and buy some t-butanol. Trading ...
8-11-2012 at 19:46
by: jon
Alternative to DCE or THF
so ipa would be good except it does'nt facilitate imine formation because of it's pka yet when worki ...
8-11-2012 at 11:47
by: jon
Alternative to DCE or THF

[quote]
textI've used DCM as a solvent for the N-benzylation of anilines before, using STAB. Yiel ...
7-11-2012 at 19:39
by: jon
Alternative to DCE or THF
or you can form the imine and dean stark it with toulene distill toulene and reduce with nabh4 in al ...
7-11-2012 at 19:12
by: jon
Alternative to DCE or THF
anectdoctally ethyl acetate will work for this i have'nt dug too deep into it but that sounds like a ...
7-11-2012 at 16:15
by: jon
N-alkylation of 4-piperidone
yeah granted wiring pyrex tubing with nichrome and ataching it to a vairiac in line with n2 an addit ...
2-11-2012 at 16:39
by: jon
demethylation of methyl aryl ethers
what about AlCl3 solvated by pyridine?or nitrobenzene don't see any reason that would'nt work.

[Edi ...
17-9-2012 at 07:44
by: jon
Preparation of Tetralin?

[quote]
textthe amides what got are quite explosive when they contact with water and it is really ...
15-9-2012 at 16:22
by: jon
Improvement in the yield of racemic PPA*HCl via Akabori reaction (35 % molar)
i had a hunch about that solvent years ago i fucking knew it.
of course they are using methyl alan ...
15-9-2012 at 09:35
by: jon
OTC tert-Butanol
elemental scientific has mtbe
also try chemsavers.
elemental was formerly hagenow laboratories and ...
8-9-2012 at 22:03
by: jon
Modified Phenylethylamine as antidepressant?
using the l-dopa analogy sounds plausible indeed.
less h-bonding sites too, looks like it could bre ...
8-9-2012 at 10:53
by: jon
OTC tert-Butanol
oh and just buy some mbte next time it's not hard to find
8-9-2012 at 09:20
by: jon
OTC tert-Butanol
you know since hcl is such a poor leaving group you might have some success with that to yeild the c ...
8-9-2012 at 09:18
by: jon
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