Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Search
[Next Page]
Malonic Ester Synthesis. Side reactions
[rquote=522829&tid=84409&author=Sigmatropic]The best conditions to maximize the first reacti ...
26-6-2018 at 19:13
by: FrankMartin
Malonic Ester Synthesis. Side reactions
[rquote=522802&tid=84409&author=TheRealKP]FrankMartin,

You should add the sodium ethoxid ...
26-6-2018 at 19:06
by: FrankMartin
Malonic Ester Synthesis. Side reactions
Hi, an experiment with the malonic acid synthesis gave a poor yield and much low-BP product. (ME = ...
24-6-2018 at 17:05
by: FrankMartin
Vacuum Distillation
Hi, I'm vacuum distilling a 250degC Alkyl Malonic Ester in the apparatus pictured. When I set the ...
19-1-2018 at 18:05
by: FrankMartin
CaO from Ca(OH)2
The 825degC refers to limestone (Ca(CO3)2), Slaked lime decomposes at a much lower temp.

I tried ...
15-4-2014 at 16:09
by: FrankMartin
CaO from Ca(OH)2
Hello. Has anyone used microwaves for the reaction:
Ca(OH)2 -----> CaO + H2O ?
My intent ...
14-4-2014 at 22:07
by: FrankMartin
Sodium manufacture. Electrolytic cell.
A good laboratory prep of Sodium metal is described in:
"SMALL-SCALE SYNTHESIS
of LABORATORY REAGE ...
11-2-2013 at 18:53
by: FrankMartin
How do I make permanent glassware markings?
I mean on glass apparatus not normally calibrated. Do I rub the glass with fine emery paper and th ...
28-10-2011 at 15:16
by: FrankMartin
Small resistance heater. Problem
Thanks. I made the heater to fit down a B19 flask socket to reflux organic liquids without bumping. ...
27-9-2011 at 16:13
by: FrankMartin
Small resistance heater. Problem
I have made a small resistance heater from BS28 nichrome wire connected to electrodes of 316LSS.

...
27-9-2011 at 14:59
by: FrankMartin
Synthesis of Malonic acid...
This may be done via enolate (crossed claisen) chemistry, vis:

Etn-Butyrate + DiEthylCarbonate = ...
21-8-2011 at 21:13
by: FrankMartin
Stainless steel stirrer shafts.
I have had great luck in mining an old color printer for SS stirrer shafts. These are extracted fro ...
8-5-2011 at 15:57
by: FrankMartin
Is there any replacement for Di Ethyl Ether?
I was hoping some other ether such as t-Butyl Methyl Ether might function as a grignard solvent, an ...
13-4-2011 at 14:15
by: FrankMartin
Best way to quantitatively spot TCL plates?
[rquote=200718&tid=15429&author=Ozone]If you are *very* careful you can use both ends. Other ...
5-2-2011 at 16:40
by: FrankMartin
Best way to quantitatively spot TCL plates?
[rquote=200598&tid=15429&author=Ozone]I like to use 10 uL Hamilton (or SGE) syringes. Used f ...
4-2-2011 at 14:57
by: FrankMartin
Best way to quantitatively spot TCL plates?
I need a consistant way to spot TLC plates with 2 microLitres of sample. Normally I use thin glass ...
3-2-2011 at 20:05
by: FrankMartin
Help. Malonic ester synthesis via crossed claisen.
[rquote=200411&tid=15409&author=DJF90]Both carbonyl groups in the oxalate ester will have th ...
3-2-2011 at 19:57
by: FrankMartin
How do I reply to a specific post?
Thanks, I tried this but all I get is a box full of the text of the previous post. Where do I type ...
2-2-2011 at 16:39
by: FrankMartin
How do I reply to a particular poster?
I've asked this before, but I still cannot do it! Can someone explain, in simple steps, (as though ...
2-2-2011 at 14:47
by: FrankMartin
Help. Malonic ester synthesis via crossed claisen.
Thanks. Is it that EtOxalate has two carboxy groups per molecule, and so has two electrophilic site ...
1-2-2011 at 20:02
by: FrankMartin
Help. Malonic ester synthesis via crossed claisen.
Theoretically diEthylMalonate can be made by condensing EthylAcetate with DiEthylCarbonate with NaEt ...
31-1-2011 at 16:38
by: FrankMartin
How do I reply to a specific post?
I mean the type that ends up in a box in the post of interest.
Frank
3-1-2011 at 16:36
by: FrankMartin
Desperately seeking method for ethyl bromide.
Thanks to all. I can make it by the usual methods, but I have some bromine I want to use up.
Fran ...
2-1-2011 at 17:03
by: FrankMartin
Desperately seeking method for ethyl bromide.
We have elemental bromine and now we need a catalyst to drive the following reaction:
EtCl + 0.5Br2 ...
1-1-2011 at 19:21
by: FrankMartin
Testing Phase Transfer Catalysts in a Malonic Ester Synthesis.
[u]Aim:[/u] To test 15 calalysts in the Malonic Ester Synthesis of tButyl MalonicEster.
[u]Experim ...
3-12-2010 at 21:52
by: FrankMartin
[Next Page]

  Go To Top