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The short questions thread (1)
But if the workup described a basic wash, the compound can't be that sensible? Perhaps alot of unrea ... |
2-10-2008 at 08:20
by: Klute |
methylenedioxybenzyl chloride + sommelet?
Wonderfull! thanks alot PainKilla! |
2-10-2008 at 05:52
by: Klute |
The short questions thread (1)
Better look at Mg methoxide/paraformaldehdye formylation of phenols, the conditions are much less ah ... |
1-10-2008 at 22:25
by: Klute |
methylenedioxybenzyl chloride + sommelet?
Thank you very much!
What's the problem with british patent, heh?   |
1-10-2008 at 22:22
by: Klute |
sulfonylchloride to thiol
On a TLC plate, your compounds will basicly elute in decreasing polarity: the more polar will be "re ... |
1-10-2008 at 12:53
by: Klute |
Vacuum Desiccation vs. Atmospheric Desiccation
I would go for atmospheric dessicators, one where you put your containers that you don't use much. B ... |
1-10-2008 at 12:43
by: Klute |
The short questions thread (1)
What reducting agent will be used? NaBH4? catalytic hydrogenation?
Will the amine be used anhydro ... |
1-10-2008 at 12:39
by: Klute |
methylenedioxybenzyl chloride + sommelet?
See patent US 1 094 417 for an example, where AcAcOEt is alkylated with p-MeOBnCl in ~50% isolated y ... |
1-10-2008 at 12:36
by: Klute |
The short questions thread (1)
Well, I have an old patent (US 1 094 417) where AcAcOEt is C-benzylated with 4-MeOBnCl in moderate y ... |
1-10-2008 at 08:23
by: Klute |
Preparation of Alkyltriphenylphosphonium Bromides
I am correct in assuming NaH would work also? |
1-10-2008 at 08:11
by: Klute |
methylenedioxybenzyl chloride + sommelet?
I have stumble don several prearation forming the bromide form the alcohol with aq. HBr at RT or und ... |
1-10-2008 at 07:57
by: Klute |
sulfonylchloride to thiol
the sulfonyl chloride (and the acid IIRC) are reduced to the sulfinic acid in absence (or too small ... |
1-10-2008 at 07:37
by: Klute |
methylenedioxybenzyl chloride + sommelet?
Thank you very much Smuv. I guess the bromide is more practical to work with (recrystallization), le ... |
30-9-2008 at 22:06
by: Klute |
The short questions thread (1)
Has anyone used sodium isopropoxide in IPA for b-ketoester alkylations (AcAcOEt to be precise)? Or d ... |
30-9-2008 at 15:09
by: Klute |
methylenedioxybenzyl chloride + sommelet?
Has anyone have the mp for piperonyl chloride and bromide? I don't have a handbook, and quite surpr ... |
30-9-2008 at 15:04
by: Klute |
The short questions thread (1)
I used a cheap transparent platic box, some PVC tubing, some washing gloves, and silicon to seal all ... |
30-9-2008 at 06:01
by: Klute |
The short questions thread (1)
You could try dissolving it in a aprotic solvent such dioxane or toluene (not sur eof the solubiliti ... |
30-9-2008 at 04:52
by: Klute |
Preparation of Alkyltriphenylphosphonium Bromides
Especially with paper chromatography, which doesn't have the same adsorption properties as silica... ... |
30-9-2008 at 04:41
by: Klute |
p-chloro aniline
And don't forget [url=http://www.orgsyn.org/default.asp]OrgSyn[/url]!!
maybe you can use an analo ... |
29-9-2008 at 12:03
by: Klute |
Preparation of Alkyltriphenylphosphonium Bromides
I would follow any common procedure for a wittig reaction, I am sure ther eis plenty in the litt, ge ... |
29-9-2008 at 11:48
by: Klute |
Oxidation of Benzyl Chloride
Acidified sulfite will give off SO2, no adding sulfite and acid simultaneously might act as dissolve ... |
29-9-2008 at 09:04
by: Klute |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Cu/SiO2 is pretty commonly used in the industry, so I have no doubt it works.
It can be used as a h ... |
29-9-2008 at 02:27
by: Klute |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
Thank you Barium, I am very honored.
Would you care elaborating on your experience with metal bo ... |
28-9-2008 at 08:39
by: Klute |
Cu/SiO2 a cheap versatil hydrogenation catalyst?
[b]Attempted reduction of dehydrozingerone by Cu/SiO2-catalyzed hydrogenation[/b]
[IMG]http:/ ... |
28-9-2008 at 06:27
by: Klute |
Oxidation of Benzyl Chloride
In acidic conditions, you will not get MnO2, but soluble Mn 2+. Unless you isolate the benzyl alcoho ... |
28-9-2008 at 05:41
by: Klute |
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