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Protocatechuic aldehyde from ethylvanillin
Yeah, resorcin also turns pink in itself by oxidation from air. No aldehyde group involved.  Thank ... |
19-3-2022 at 09:11
by: Pumukli |
Need help interpreting this TLC plate
Have you tried running an "empty" run on your plates? I mean a TLC run in the same solvent without a ... |
18-3-2022 at 23:18
by: Pumukli |
Protocatechuic aldehyde from ethylvanillin
Very nice work, Diachrynic! I like these "simple", one step organic conversions. Especially if good ... |
18-3-2022 at 22:49
by: Pumukli |
formation of grignard reagents in DIPE
I remember an article by Henry Gilman who studied Grignards extensively and compiled a list of vario ... |
15-9-2021 at 07:29
by: Pumukli |
My zinc oxide not pure, have carbonate, can ZnO absorb CO2?
I have old (20+ years) pharmacy grade ZnO stored in a paper bag. So it could have absorbed CO2 from ... |
14-9-2021 at 08:18
by: Pumukli |
The chemistry of Sorbic acid
I'm not sure but I think I saw it in a "sorbic acid paper" that it can be condensed with sorbic acid ... |
14-9-2021 at 04:30
by: Pumukli |
Nicotinamide dehydration
Hi. I tried the ammonium-sulfamate method. It gave some nitrile, yes. |
11-8-2021 at 05:32
by: Pumukli |
Synthesis of benzonitrile using ammonium sulphamate and benzamide
Congratulations for the synthesis and the video!
As one who advocates this method for preparing n ... |
11-8-2021 at 02:09
by: Pumukli |
Derivatising p-dichlorobenzene through its nitro compound
Glad that steam distillation worked.
Carefull with this compound if it is so volatile. At least 4-c ... |
26-1-2021 at 11:36
by: Pumukli |
Preparation of Acetanilide
Thanks! :-)
I'm aware of that zinc-dust method but when I realised that plain acetic acid could y ... |
20-1-2021 at 23:23
by: Pumukli |
Derivatising p-dichlorobenzene through its nitro compound
How the steam distilled product looked like?
As for solvents, maybe (m)ethanol or acetic acid (perh ... |
20-1-2021 at 23:19
by: Pumukli |
Preparation of Salicylaldehyde
Maybe the red color means there is unreacted phenol that is oxidized. Phenol distills with steam as ... |
20-1-2021 at 23:17
by: Pumukli |
Preparation of Acetanilide
Yes, you are right, the 9+1 and 8+2 examples are the ones where I used some acetic anhydride to "for ... |
18-1-2021 at 03:01
by: Pumukli |
Preparation of Acetanilide
Strange. It works for me. Tried via https and plain http login as well. |
17-1-2021 at 23:05
by: Pumukli |
Preparation of Acetanilide
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[align=center]Acetanilide - with a twist [/align][/b][/size]
[size=3][font=Arial] Th ... |
16-1-2021 at 08:57
by: Pumukli |
Synthesis of N,N'-dialkyloxamides
Congrats for the preparations!
Actually they are the first reported successful "ester aminolysis" ... |
12-1-2021 at 05:16
by: Pumukli |
Friedel-Crafts acylation of anilides
It seems the odds are not that bad. I found the following:
"p-Chloroacetyl acetanilide (3). To a ... |
9-1-2021 at 16:04
by: Pumukli |
Friedel-Crafts acylation of anilides
Thanks, Boffis!
Now I try to reword my original question because it was anything but clear. :-)
... |
9-1-2021 at 15:11
by: Pumukli |
Friedel-Crafts acylation of anilides
I have a question for our org.chem. experts!
I played around the ubiquitous reaction of aniline, ... |
9-1-2021 at 06:53
by: Pumukli |
Things to do with Ethyl Formate
Filtering CuS: in the old days it was common practice to boil the very fine solid precipitate for a ... |
9-1-2021 at 02:38
by: Pumukli |
Things to do with Ethyl Formate
Fun fact No 2: those who actually have smelled ethyl-formate are baffled because the smell of ethyl- ... |
9-1-2021 at 02:32
by: Pumukli |
Things to do with Ethyl Formate
Why not combine the two? Alkaline sulfide precipitation, use Na[sub]2[/sub]S!
Then dry it, then ext ... |
8-1-2021 at 05:18
by: Pumukli |
Is it possible to synthesize trimethyl phosphate via transesterification
Interesting idea, maybe worth entertaining a bit further.
Question is if a route exists to say tr ... |
4-1-2021 at 22:21
by: Pumukli |
p-Nitroso-dimethylaniline
This is from hyperlab. Google translate can translate it. They suggest petrolether for recrystalliza ... |
2-1-2021 at 10:19
by: Pumukli |
p-Nitroso-dimethylaniline
I quickly checked my local org. chem. preparations manual but unfortunately this particular compound ... |
29-12-2020 at 06:46
by: Pumukli |
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