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Sequence of 'color reactions'
For the sequence of pourings:

1st glass of diluted (pH 10 or so) NaOH - colourless

2nd glass a ...
13-12-2022 at 11:32
by: Pumukli
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst
Fery, I bought my Pd/C on a sort of sale too. I don't know anything else about it besides the bottl ...
2-12-2022 at 13:59
by: Pumukli
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst
Very good, Fery! A low pressure hydrogenation on Pd/C! Without inert atmosphere. With the help of a ...
2-12-2022 at 10:11
by: Pumukli
Vacuum vs steam distillation?
I like this "coincidental wave" I'm living through nowadays. :D

Believe it or not, on this (very) ...
30-11-2022 at 14:52
by: Pumukli
Bromination of 1,3 benzodioxole to 5-Bromo-1,3-benzodioxole?
Maybe the orientation would be different.
Maybe the availability is different (for an amateur).
29-11-2022 at 07:01
by: Pumukli
Bromination of 1,3 benzodioxole to 5-Bromo-1,3-benzodioxole?
Yeah, you are right, Boffis, my fault! :)

Anyway, the "real deal" table shows a very different pi ...
29-11-2022 at 06:32
by: Pumukli
Bromination of 1,3 benzodioxole to 5-Bromo-1,3-benzodioxole?
Atara, (or not), thanks for the reminder!

Here we go:


[file]95926[/file]


It seems, tha ...
29-11-2022 at 06:00
by: Pumukli
Bromination of 1,3 benzodioxole to 5-Bromo-1,3-benzodioxole?
You put a question mark to the end of your opening sentence, hence I assumed you were looking for a ...
29-11-2022 at 03:48
by: Pumukli
Bromination of 1,3 benzodioxole to 5-Bromo-1,3-benzodioxole?
_not_Atara, clearly you have a wicked sense of humor. :)

But you were 100% honest, I checked.

...
28-11-2022 at 09:07
by: Pumukli
haloform reaction - cinnamic acid from benzylideneacetone
So you say, kmno4, that basically stronger stirring (to prevent clumping) should provide a good yiel ...
26-11-2022 at 22:46
by: Pumukli
toluene --> benzaldehyde
I heard that pure O2 is not really a forgiving substance when mixed with flammables.

Your suggest ...
26-11-2022 at 13:12
by: Pumukli
haloform reaction - cinnamic acid from benzylideneacetone
A quick search brought up a few hits regarding methanol and sodium hypochlorite incompatibility.
It ...
26-11-2022 at 12:56
by: Pumukli
haloform reaction - cinnamic acid from benzylideneacetone
On second thought, that MeOH as cosolvent is not a bad idea at all. Methanol should not react with h ...
26-11-2022 at 08:54
by: Pumukli
A foray into phenethylamines of the Shulgin kind
I'm stunned, again, by your work, Benignium.

A lot of effort went into these synths (and obviousl ...
26-11-2022 at 08:48
by: Pumukli
haloform reaction - cinnamic acid from benzylideneacetone
Nice work. I always wanted to see a haloform used for other products not only for chloroform. (I hav ...
26-11-2022 at 08:29
by: Pumukli
Bromatometric titration of anilines/phenols and O-alkylphenols
I tried to adapt this method to the determination of p-methoxy-phenol (PMP), but it seems to be not ...
24-11-2022 at 11:22
by: Pumukli
How to determine storage groups for various reagents
Few weeks ago I finished the cleaning/repurposing of a separate room for chemical storage purposes. ...
21-11-2022 at 02:31
by: Pumukli
Interesting route to 4-methoxyphenol
In these days I'm working on exactly the same synthesis. :) Especially for the scent! (Not the scent ...
11-11-2022 at 00:14
by: Pumukli
Heterocyclic Drugs Synthesis Review
Thanks for the share!
A few interesting (long forgotten) steps here and there. :)
But: "so many po ...
8-11-2022 at 07:24
by: Pumukli
TLC challenge
Fulmen: Good point! (Not the coffee thing, ha-ha.) Hm, I may try next time a more controlled sampli ...
3-11-2022 at 22:36
by: Pumukli
TLC challenge
Are you asking me? I thought that I ask and you answer! ;)

But you are right, the eluent system ...
3-11-2022 at 12:46
by: Pumukli
TLC challenge
I'm playing with something (an organic preparation) nowadays and made a TLC sheet in the morning.
I ...
3-11-2022 at 11:41
by: Pumukli
Synthesis of malonic acid
I could not resist and tried to make malonic acid via the nitric acid oxidation of malic acid.
Well ...
3-11-2022 at 11:08
by: Pumukli
Dibenzalacetone - Organic Synthesis writeup
Nice colours! :)

I'd like to suggest that besides the masses of used reagents a molar equivalent ...
23-10-2022 at 08:19
by: Pumukli
Anyone tried DCVC (Dry Column Vacuum Chromatography)
Nice synchronicity. :)

A few days ago I came across this:

It is from the same author.

[fil ...
21-10-2022 at 23:54
by: Pumukli
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