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benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst

My distilled product was completely collorless, as it should be.
I do not like making impure prep ...
3-12-2022 at 05:25
by: kmno4
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst

I made this ketone years ago, but in very similar way: 10%Pd/alumina with H2 generated by electrol ...
2-12-2022 at 14:17
by: kmno4
haloform reaction - cinnamic acid from benzylideneacetone

I did cinnamic acid by this method few times, with yields around 70-80%, close to the yields in th ...
26-11-2022 at 14:31
by: kmno4
A good way to methylamine hcl by nitromethane reduction with fe/hcl?
[quote]
1 mol of nitromethane or nitroethane
4.4 mol iron (pulverized cast iron filings, just use ...
24-11-2022 at 18:02
by: kmno4
The purification of old p-Benzoquinone

I have performed similar experimets recently, because long time ago I used up all my BQ ( BTW, it ...
20-11-2022 at 11:02
by: kmno4
Synthesis of malonic acid

OK.
As a matter of fact, it is really hard to guess correct structure of the product without ele ...
13-11-2022 at 07:58
by: kmno4
Synthesis of malonic acid

The "diaceto" derivative would have higher m.p. than the monocarboxylate furoxan, at least I think ...
12-11-2022 at 00:01
by: kmno4
Synthesis of malonic acid
[rquote=678330&tid=1600&author=Boffis]Well, carried out a Mp test on my white crystals and g ...
10-11-2022 at 18:32
by: kmno4
Synthesis of malonic acid
Oxidation of organic matters by HNO3 has free-radical mechanism and is not very selective. Of course ...
9-11-2022 at 02:04
by: kmno4
Synthesis of malonic acid
[rquote=678071&tid=159017&author=Boffis]Well the proposed nitric acid oxidation of beta alan ...
5-11-2022 at 14:25
by: kmno4
ZnCl2 * nH2O, purificiation

[quote]But it is no possible to get ZnCl2 by evaporating water solution.[/quote]
Of course it is ...
2-11-2022 at 23:04
by: kmno4
Synthesis of malonic acid
[rquote=678071&tid=159017&author=Boffis]
I am currently researching the recrystallisation o ...
1-11-2022 at 22:34
by: kmno4
Synthesis of malonic acid


..... that is why some time ago I decided to order malonic acid directly from a manufacturer (PR ...
26-10-2022 at 13:59
by: kmno4
Mono-Nitration of Phenol [Tarr Elimination Method]
Mechanism of nitration of phenol [b]is not[/b] similar to nitration of benzene or toluene. It turns ...
17-10-2022 at 12:20
by: kmno4
Electrolytic reduction of pyridine to piperidine

I like this experiment.
However, it is hard to say that "The yield was 3.90 g (46 mmol) of browni ...
23-6-2022 at 14:04
by: kmno4
Violuric acid salts (fantastic colors and variety)
[rquote=673672&tid=156755&author=kmno4]... I doubt if UA is formed in this reaction at all.[ ...
21-5-2022 at 12:12
by: kmno4
Violuric acid salts (fantastic colors and variety)
[rquote=673568&tid=156755&author=Boffis]Please let us know how you get on.[/rquote]
Unfortu ...
20-5-2022 at 03:23
by: kmno4
Violuric acid salts (fantastic colors and variety)

I have received the parcel, full of chemical goods :D
I do not trust mentioned paper very much, i ...
16-5-2022 at 03:13
by: kmno4
Violuric acid salts (fantastic colors and variety)
[rquote=656578&tid=156755&author=Boffis]
Guano -> uric acid -> alloxan -> alloxan- ...
12-5-2022 at 14:55
by: kmno4
p-nitrosophenol purification
You may read this:
http://www.sciencemadness.org/talk/viewthread.php?tid=12677
11-4-2022 at 13:44
by: kmno4
BnCl synthesis - Using anhy. CaCl2 as catalyst?
BnCl comes back like a boomerang.....
Read this, for example:
https://www.sciencemadness.org/whisp ...
10-4-2022 at 11:46
by: kmno4
Basic iron acetate structure
Freely available (and much newer) literature can be found here:
https://journals.iucr.org/e/issues/ ...
21-2-2022 at 16:34
by: kmno4
Odd crystals growing in condenser during BnCN reaction reflux
[quote].....almost completely black[/quote]
Post reacton mixture should be more or less brown; in m ...
20-11-2021 at 16:29
by: kmno4
Odd crystals growing in condenser during BnCN reaction reflux
[quote]Speaking of distilling it, do you think fractional distillation is necessary?[/quote]
In thi ...
20-11-2021 at 06:47
by: kmno4
Odd crystals growing in condenser during BnCN reaction reflux
These crystals are surely a sign of impure chemicals :(
What can it be - I do not know, maybe some ...
18-11-2021 at 14:20
by: kmno4
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