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how effective is a Vigreaux column ?
Found somewhere :
[file]107983[/file]
I use 40 cm VC. It is sensitive to air movements but a loo ... |
17-12-2025 at 00:04
by: kmno4 |
A Cheaper Approach to Allyl Chloride
CuCl in solution ....? Pffff, nothing is simpler :
[quote]To a mixture of 120 g 30% hydrochloric ac ... |
21-10-2025 at 12:42
by: kmno4 |
Acetanilide nitrosation
Just a handful of informations from 1876 (in German) year 
|
8-10-2025 at 12:21
by: kmno4 |
Acetanilide synthesis from aniline and acetic acid
It is a banal synthesis, described in countless "manuals", with or without "catalysts" and various ... |
9-9-2025 at 14:22
by: kmno4 |
phenoxyacetone
Only 2:1 version was tested, to avoid a mixture of -mono and -di derivatives. With K2CO3 reaction ... |
26-7-2025 at 02:08
by: kmno4 |
phenoxyacetone
I feel obliged to give some additional (and ending) informations.
Phenoxyacetone is not very stab ... |
24-7-2025 at 10:25
by: kmno4 |
phenoxyacetone
Another few experiments were performed.
Instead of molar amount of KI, fixed amount (~1 g) wa ... |
13-3-2025 at 05:04
by: kmno4 |
phenoxyacetone
Experiment with benzyl alcohol came to an end.
After several days, some TBACl (~0,1 g) was added. ... |
10-3-2025 at 02:07
by: kmno4 |
One pot reduction of dinitro compounds to diamines
So, I got nothing but very deeply purple-brown solutions.
It is not desired diamine but - most po ... |
8-3-2025 at 14:15
by: kmno4 |
phenoxyacetone
Hah, thanks.
I used chloroacetone/KI ~1/1,1 molar, but I have impression it is overkill. See for ex ... |
6-3-2025 at 02:53
by: kmno4 |
phenoxyacetone
Finally I performed this acetonylation.
The product is not yet prepared in pure state, but it reall ... |
5-3-2025 at 13:32
by: kmno4 |
One pot reduction of dinitro compounds to diamines
Finally I have found my lost jar with ~10 g of 1,3 dinitrobenzene.
It is by-product from nitroben ... |
11-2-2025 at 07:49
by: kmno4 |
phenoxyacetone
[quote]What is it to be used for? My database gives the following list of applications:
1. Isoxsu ... |
10-2-2025 at 13:09
by: kmno4 |
One pot reduction of dinitro compounds to diamines
Yes, it happens especially if someone does this for the first time.
Another bad thing is using iron ... |
10-2-2025 at 12:42
by: kmno4 |
phenoxyacetone
In my opinion, using impure starting materials and obtaining end product of unknown purity makes n ... |
6-2-2025 at 14:52
by: kmno4 |
One pot reduction of dinitro compounds to diamines
[quote]Lol, yeeees  I mean, solvent, temperature, time? [/quote]
Yeeeeeeeeeeeeeeeeeeeeeeeeee ... |
4-2-2025 at 13:32
by: kmno4 |
One pot reduction of dinitro compounds to diamines
Fe + HCl(aq) ... and this is all.
|
4-2-2025 at 11:57
by: kmno4 |
What happens here (Heating K2S2O8) ?
From basics of chemistry:
K2S2O8 -> K2S2O7 +1/2 O2 -> K2SO4 + SO3 |
29-1-2025 at 16:10
by: kmno4 |
Synthesis and Smell of 2-Phenylethyl chloride
2-Phenylethanol can be separated from corresponding chloride by conc. H2SO4 treatment (r.t.) - t ... |
12-1-2025 at 13:44
by: kmno4 |
Powdered polystyrene (for copolymerization)
[rquote=697914&tid=160775&author=RedDwarf]Are you really talking about creating a copolymer ... |
28-12-2024 at 05:46
by: kmno4 |
Isophorone from acetone
Christmas comes early this year - look at 3rd page of "Organic chemistry" section.
Or just UTFSE. ... |
11-12-2024 at 04:20
by: kmno4 |
Potassium Ferrocyanide from Cyanate
Of course, I agree with Aqua-regia. Just because of troublesome purification, the only use of such ... |
10-12-2024 at 06:57
by: kmno4 |
Potassium Ferrocyanide from Cyanate
Not easy to get ? Possiby, but very easy to prepare.
Absorbing water ? No problem - tightly close ... |
9-12-2024 at 06:34
by: kmno4 |
Salting out acetic acid?
By the way, instead of EtAc, one can use rather inexpensive ether: MTBE.
It forms also one water ... |
6-12-2024 at 15:12
by: kmno4 |
Salting out acetic acid?
[rquote=696952&tid=160668&author=kmno4]
... to try extractive distillation with EtAc using ... |
4-12-2024 at 07:01
by: kmno4 |
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