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Glyoxal Synthesis
Yeah, just add your glyoxal-containing solution to an excess of ethanolic solution of sodium bisulfi ...
16-8-2013 at 06:31
by: IPN
Pretty Pictures (1)
TLC from a reaction I did few weeks ago (making some spiropyran derivative):


[img]http://puu.sh ...
7-6-2013 at 07:30
by: IPN
Dimethyl Sulfate, cheapest preparation, OTC !
Just wanted to second this:

[quote]
The solution I'd prefer to use is a 5:1:1 mixture of methano ...
4-6-2013 at 08:02
by: IPN
Best and worst smelling chemicals?
Having worked a lot with triethylamine (sonogashiras in neat TEA) I dont know if I have just gotten ...
3-9-2012 at 22:12
by: IPN
Samarium from SmCo5 Magnets
No offence blogfast25, but did you read the post at all? :) Because it clearly describes the way Der ...
12-11-2011 at 06:45
by: IPN
A puzzle about the precipitation of calcium oxalate
I think you are just witnessing Le Chatelier's principle in action. Meaning that having that excess ...
19-10-2011 at 03:31
by: IPN
Thorium Separation From TIG Electrodes
In an attempt to obtain some thorium compounds from welding rods I did an experiment in dissolving t ...
25-9-2011 at 06:07
by: IPN
Help with quinoline synthesis
Well, to my amazement the Raney nickel did the job in the microwave reactor. A 50% yield was obtaine ...
28-7-2011 at 06:28
by: IPN
Transfer hydrogenation
It would make it easier to answer your question if you told us what type of functionality you want t ...
22-7-2011 at 08:49
by: IPN
Help with quinoline synthesis
Yeah I used +2eq DIBAL for the nitrile in both THF and DCM, neither showed any reduction products. T ...
21-7-2011 at 06:13
by: IPN
Steam distillation of aniline.
From Purification of Laboratory Chemicals, 6th Ed.


[quote]
Aniline [62-53-3] M 93.1, f -6.0o, ...
16-7-2011 at 03:53
by: IPN
Steam distillation of aniline.
I never bothered with the steam distillation when preparing aniline from nitrobenzene but this was m ...
16-7-2011 at 03:20
by: IPN
Help with quinoline synthesis
So the DMSO oxidation was tried out but unfortunately no aldehyde was found in the extracts after wo ...
16-7-2011 at 03:15
by: IPN
Help with quinoline synthesis
Thank you fledarmus! The article isn't available to me online, but I'll be sure to check it on monda ...
24-6-2011 at 13:36
by: IPN
Help with quinoline synthesis
Thank you ScienceSquirrel for the reference! The Duff reaction was tried out, but although it did gi ...
24-6-2011 at 10:25
by: IPN
Asymmetric Etherification of 1,4-dihydroxybenzene
I'm currently running a veratraldehyde synthesis using the MeBr method that PainKilla described in o ...
24-6-2011 at 09:00
by: IPN
N-demethylation of 3° amines
A simple google search resulted in a lot of hits for selective demethylation of amines. I attached o ...
24-6-2011 at 06:37
by: IPN
What you take pride in...
I see others like their soxhlets too. :)

I take extra pride in mine. :D

2l flask for compariso ...
24-6-2011 at 06:05
by: IPN
Help with quinoline synthesis
We have been puzzled by a synthesis problem for a while now where our target molecule is a 4-hydroxy ...
1-6-2011 at 12:32
by: IPN
Make Potassium (from versuchschemie.de)
The article of interest from the J. Agric. Food Chem. is in the attachment. Hope you find it useful. ...
26-2-2011 at 01:06
by: IPN
3,4-dihydroxy-5-methoxybenzaldehyde synthesis
If that synthesis with copper (I) bromide catalyst is one of those NaOMe substitution reactions then ...
17-10-2010 at 07:52
by: IPN
measuring concentrations of iron and manganese without spec.
Complexometric Titrations by Schwarzenbach and Flaschka gives several references to the determinatio ...
8-3-2010 at 05:28
by: IPN
measuring concentrations of iron and manganese without spec.
In the lack of instruments for spectrometric determinations there are always the titrimetric (comple ...
8-3-2010 at 02:34
by: IPN
Production of ferrous chloride
Boiling the FeCl2 solution down while keeping pieces of iron in the solution should prevent oxidatio ...
19-2-2010 at 01:27
by: IPN
Benzoquinone from Paracetamol
Well if you would have read the thread you would know that for some, hydroquinone is not that easily ...
13-2-2010 at 10:39
by: IPN
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