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4-Ethoxyphenol / hydroquinone monoethyl ether
Good work Turd!
Was the distillation of the freebase really necessary? Recrystallisation of the h ... |
12-6-2010 at 03:41
by: Ullmann |
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
Please note that a detailled procedure for generation and in situ use of the reagent has been posted ... |
13-2-2010 at 12:03
by: Ullmann |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
This is the best yield got for the substituted benzene. The methylating agent used was MMS but MES ( ... |
13-2-2010 at 11:43
by: Ullmann |
4-Ethoxyphenol / hydroquinone monoethyl ether
Congratulation for the good work. Yes it is a very good procedure Klute did provide us. I am much gr ... |
13-2-2010 at 11:19
by: Ullmann |
4-Ethoxyphenol / hydroquinone monoethyl ether
@Turd :
As far as I remember the product 2-methoxy-5-ethoxy-benzaldehyde is an oil. Mine did not ... |
31-12-2009 at 14:37
by: Ullmann |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
[b]Vilsmeir-Haack : 2-ethoxy-4-ethylthio-5-methoxy-benzaldehyde[/b]
POCl3 (7 g, MW 153, 1.5 eq, ... |
1-9-2009 at 09:12
by: Ullmann |
4-Ethoxyphenol / hydroquinone monoethyl ether
@Klute :
I do not remember, maybe some product was there but as none crystallized even with seeding ... |
21-8-2009 at 10:43
by: Ullmann |
2-ethoxy-5-methoxy-4-alkylthio-benzene
@Maja [quote]There is any way to exchange that Methyl to Ethyl ? :][/quote]
This could interest y ... |
21-8-2009 at 10:40
by: Ullmann |
4-Ethoxyphenol / hydroquinone monoethyl ether
No i havent used it with success in another solvent than MeOH (or better aqueous MeOH)
Once I had ... |
19-8-2009 at 08:20
by: Ullmann |
Monomethylation of primary amines: N-methyl-2-phenethylamine
Good work Klute! |
15-8-2009 at 12:47
by: Ullmann |
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
Mhh apparently it needs K2CO3 and not Na2CO3 and this is not quantitative (search the old hive)... F ... |
15-8-2009 at 12:43
by: Ullmann |
5-EtO-2-MeO-benzaldehyde
[b][u]5-ethoxy-2-methoxy-benzaldehyde :[/u][/b]
[b]1) para-ethoxy phenol :[/b]
In a 1 liter RB ... |
15-8-2009 at 11:23
by: Ullmann |
Thiourea -> S-Me isothiourea -> MeSCN
[quote][i]If one wants to prepare his own, thiourea (very inexpensive) can be methylated with two mo ... |
2-7-2009 at 10:22
by: Ullmann |
vacuum
[quote]@Ullmann- I'm impressed. [/quote]
How much flow do you get through that pump? I do not k ... |
19-11-2008 at 10:10
by: Ullmann |
vacuum
Personally the cheapest and most convenient I know of is a fridge pump cut off an old fridge... It c ... |
15-11-2008 at 09:00
by: Ullmann |
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
Thank you Klute,
About the alkyl bromide : http://www.orgsyn.org/orgsyn/orgsyn/prepContent.asp?p ... |
10-11-2008 at 14:44
by: Ullmann |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
[quote][i]Originally posted by stoichiometric_steve[/i]
I don't have access to either of these in ... |
6-11-2008 at 11:49
by: Ullmann |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Did you do NMR spectrum on the final product? and MS?
Mine (some higher homologue) was a mixture ... |
6-11-2008 at 11:01
by: Ullmann |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
Thank you all for your nice and happy comments, they make me feel some persons appreciate the work b ... |
6-11-2008 at 07:11
by: Ullmann |
4-alkylthio-2,5-dimethoxybenzaldehyde, Sulfuric Duff reaction
I have found a small towel in an arabian market while visiting the Mevlevi Order of Sufis, it was mo ... |
5-11-2008 at 12:10
by: Ullmann |
Mg-mediated o-formylation of phenols: A Writeup
Thank you for this very detailed work, Klute |
5-11-2008 at 11:02
by: Ullmann |
Benzoic Acid, Carbamid>Benzamid>Anilin?
Good Work!
Best way to purify aniline is distillation in vacuo IMHO.... |
17-10-2008 at 11:20
by: Ullmann |
New OTC methylating agent - Methyl Ethane Sulfonate (MES)
[b][u] (A.) Methyl Methane Sulfonate (MMS) generation from Mesyl Chloride and Methylation of Salicyl ... |
27-9-2008 at 09:23
by: Ullmann |
Aqueous Preparation of Toluene Sulfonyl Halides
Antoncho on the old hive did alot of talk on that aniline to tosyl chloride route via copper...
T ... |
21-8-2008 at 12:05
by: Ullmann |
Proposed novel 6-step syntheis of 5-MeO-4-AcO-DMT
Bull. Soc. Chim. France (1965), (5), 1411-17 and 1417-1423 also are worth checking as it is the fi ... |
1-8-2008 at 11:10
by: Ullmann |
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