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thf oxidation
Don't forget that lactones are easily synthetised by deshydrogenating diols.

Have anyone ever tri ...
14-4-2008 at 08:36
by: Methyl.Magic
Formylation of 4-MeO-phenol with Mg(MeO)2 : Synthesis of m-vanilline
The magnesium salt has been stored in a dessicator over an inert athmosphere (nitrogen).

The offi ...
5-4-2008 at 06:16
by: Methyl.Magic
Formylation of 4-MeO-phenol with Mg(MeO)2 : Synthesis of m-vanilline
Hey !

Thanks for comment !

The toluène from the orange solution (filtrate) was boiled off w ...
5-4-2008 at 02:42
by: Methyl.Magic
Formylation of 4-MeO-phenol with Mg(MeO)2 : Synthesis of m-vanilline
Today I decided to filtered the precipitate on a buchner under vacuum. The precipitate is a yellow-c ...
31-3-2008 at 11:49
by: Methyl.Magic
Formylation of 4-MeO-phenol with Mg(MeO)2 : Synthesis of m-vanilline
200ml of fluka-quality anhydrous MeOH is poued in a 750ml four-necked flask fitted with a reflux con ...
31-3-2008 at 11:35
by: Methyl.Magic
Formylation of 4-MeO-phenol with Mg(MeO)2 : Synthesis of m-vanilline
Hey !!!

Last Sunday I decided to test the Magnesium methoxide formylation. It has been reported ...
31-3-2008 at 10:53
by: Methyl.Magic
reductive amination with triacetoxyborohydride
[quote][i]Message original : grind[/i]
You can add 4 or more moles of AcOH to 1 mol of NaBH4, in t ...
30-3-2008 at 04:19
by: Methyl.Magic
Drying ethers over P2O5
[quote][i]Message original : Klute[/i]
And do you dry your THF on 3A MS too? Is that sufficent to ...
19-3-2008 at 04:24
by: Methyl.Magic
Drying ethers over P2O5
Personally, I use THF for hydride reduction and diethylether for grignard...

I always dry my Et2O ...
17-3-2008 at 10:40
by: Methyl.Magic
Isopropyl Mercaptan Synthesis
good synthesis !

Don't forget that mercaptan can be synthethised by grignard reagent and sulfur w ...
16-3-2008 at 03:50
by: Methyl.Magic
Oxidising THF using calcium hypochlorite
GBL is more used as substrate (i.e. for making 4-chlorobutyryl chloride) than as solvent...

GBL ...
16-3-2008 at 03:38
by: Methyl.Magic
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
Bien Joué ! Ca c'est du bon boulot !

I'm happy to see that TMP alkylation gives good yield !
...
16-3-2008 at 03:05
by: Methyl.Magic
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
For the next Job perhaps I'll try a "all-in-one" o-formylation of phénol.

1) dissolve the phe ...
19-2-2008 at 10:55
by: Methyl.Magic
Amines from alcohols??
[quote][i]Message original : Nicodem[/i]
You should provide more information for a reliable answer ...
19-2-2008 at 09:35
by: Methyl.Magic
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
[quote][i]Message original : Klute[/i]

How good were the yields? >70%? How long did you let ...
12-2-2008 at 11:54
by: Methyl.Magic
Green Methylating agent....comments
personally I use trimethylphosphate : it's relatively nontoxic , cheap and more effective than DMC.
12-2-2008 at 11:16
by: Methyl.Magic
Methylation of phenolic aldehydes with MeI in DMF: 2-methoxybenzaldehyde
hey

this is a good job ! Your cristals are beautiful, I'll eat some for my breakfeast !!! and 73% ...
9-2-2008 at 03:26
by: Methyl.Magic
Solvant-free Decarboxylation of Amino-acid
I 've just done the first trial. I used a hotplate equipped with a Pt-100.

Decarboxylation starts ...
8-2-2008 at 09:46
by: Methyl.Magic
Solvant-free Decarboxylation of Amino-acid
The standard decarboxylation method are not very good for L-tryptophan.

Refluxing in a high bp so ...
7-2-2008 at 12:52
by: Methyl.Magic
Ether halogenation?
intersesting question.

Normally when you brominate a molecule the substrate is more reactive than ...
7-2-2008 at 12:11
by: Methyl.Magic
GBL Distillation - Vacuum or no?
At frist distil sour DCM at standard pressure. Then, if you have a vacuum pump why not use it ??? Yo ...
29-11-2007 at 11:36
by: Methyl.Magic
GBL Distillation - Vacuum or no?
You don't need vacuum !!!

GBL is very stable to heat and easily distilled at atmospheric pressure ...
21-11-2007 at 09:48
by: Methyl.Magic
L-tryptophan decarboxylation
[quote][i]Message original : Grimble_Gromble[/i]
[quote][i]Originally posted by Methyl.Magic[/i]
...
10-10-2007 at 10:31
by: Methyl.Magic
oxidation alcohol to aldehyde with MnO2
Aldehydes can easily synthetised from alcool via Dehydrogenation with Copper chromite as catalyst !! ...
24-8-2007 at 10:19
by: Methyl.Magic
L-Proline Esterification
the ether has been distilled to give 1.01g of ethyl prolinate as yellow oil. i didnt distill this oi ...
24-8-2007 at 10:02
by: Methyl.Magic
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