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The purification of old p-Benzoquinone
here they also used sublimation:
https://youtu.be/IRxijp-jh_o?t=210
I've bought these coldfinger c ... |
18-12-2022 at 11:52
by: Fery |
latest glassware purchase
Galileo thermometer from here: https://shop.es-drei.de/laborbedarf/laborzubehoer/13578/thermometer-n ... |
7-12-2022 at 11:27
by: Fery |
DCM Acquisition
Mateo_swe - Chemland is great supplier of glass, equipment, reagents. For reagents they ask you for ... |
7-12-2022 at 11:11
by: Fery |
DCM Acquisition
Exactly! Clever idea. Buy pharma / food grade caffeine. Cheaper and quality granted.
But I understa ... |
7-12-2022 at 02:28
by: Fery |
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst
@blogfast25 the target product was only the benzyl acetone so far
@Pumukli - this catalyst may perh ... |
2-12-2022 at 21:57
by: Fery |
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst
Hi Pumukli, I was very afraid of fire too. I studied all solvents and there is a link in the initial ... |
2-12-2022 at 11:01
by: Fery |
can hydrogen be stored under low pressure for hydrogenation reactions?
bluamine I did this with different substrate of C=C bond hydrogenation at atmospheric pressure, ther ... |
2-12-2022 at 02:54
by: Fery |
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst
filling 1 L bottle with H2 produced by electrolysis
[file]95950[/file]
reactants
[fil ... |
2-12-2022 at 02:26
by: Fery |
benzyl acetone = 4-phenylbutan-2-one by hydrogenation of benzylideneacetone with H2 on palladium catalyst
calculations:
[url=https://www.sciencemadness.org/whisper/viewthread.php?tid=159079]benzylideneacet ... |
2-12-2022 at 01:56
by: Fery |
can hydrogen be stored under low pressure for hydrogenation reactions?
bluamine you wanted hydrogenate Cyclohexene to convert it to Cyclohexane which runs fine at atmosphe ... |
1-12-2022 at 22:32
by: Fery |
Preparation of chlorosulfonic acid derived protecting groups
Monoamine ask our forum member [url=https://www.sciencemadness.org/whisper/viewthread.php?tid=156402 ... |
1-12-2022 at 22:26
by: Fery |
can hydrogen be stored under low pressure for hydrogenation reactions?
Today I did hydrogenation reaction with Pd/C catalyst and I used 1 L plastic bottle submersed in wat ... |
1-12-2022 at 12:16
by: Fery |
haloform reaction - cinnamic acid from benzylideneacetone
Yes, my yield was something like only 20%... but I did twice recrystallization as from the first one ... |
27-11-2022 at 05:03
by: Fery |
haloform reaction - cinnamic acid from benzylideneacetone
Bedlasky that's good point. The guy from the video link got some product. Maybe haloform reaction pr ... |
26-11-2022 at 11:13
by: Fery |
haloform reaction - cinnamic acid from benzylideneacetone
Hi Pumukli, it was 12,5% NaOCl... the chinese method had best yield when using 1,0 M concentration s ... |
26-11-2022 at 08:45
by: Fery |
haloform reaction - cinnamic acid from benzylideneacetone
I added a little of NaOH to be sure not to attack double bond and prevent halohydrin reaction (no fr ... |
25-11-2022 at 21:23
by: Fery |
1-acetylnaphthalene = 1-acetonaphthone = alpha-naphthyl methyl ketone
Friedel-Crafts acylation of naphthalene with acetyl chloride catalyzed by anhydrous AlCl3.
Calcul ... |
22-11-2022 at 11:14
by: Fery |
1,2,3,4-tetrahydrocarbazole
Hi Boffis, so far I already got the required Pd on C catalyst. The hydrogenation reaction catalysed ... |
21-11-2022 at 21:14
by: Fery |
haloform reaction - cinnamic acid from benzylideneacetone
There are a lot of posts producing chloroform from acetone but only few posts focused in the other p ... |
21-11-2022 at 11:35
by: Fery |
Formic Acid Dehydration
If using anhydrous oxalic acid for concentrating formic acid works then you can maybe dehydrate oxal ... |
19-11-2022 at 11:05
by: Fery |
Formic Acid Dehydration
Industrially they use distillation of azeotrope at reduced pressure, IIRC something like 0,3 atm. Bu ... |
17-11-2022 at 23:57
by: Fery |
Distillation of paraffin wax (or its thermal decomposition)
Why not to distill it using vacuum? |
17-11-2022 at 11:48
by: Fery |
Successful Chloroform Synthesis
Junk_Enginerd - cool and clever method! Was it necessary to stir the reaction? I suppose also some p ... |
17-11-2022 at 11:46
by: Fery |
benzalacetone = benzylideneacetone by aldol condensation
Hi Bedlasky, its scent is nice, some kind of sweet, but hard to describe.
Dibenzalacetone should be ... |
15-11-2022 at 22:16
by: Fery |
benzalacetone = benzylideneacetone by aldol condensation
too much photos so the post had to be split into 2 posts due to max number of photos limitation
... |
15-11-2022 at 11:01
by: Fery |
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