Sciencemadness Discussion Board
Not logged in [Login - Register]
Go To Bottom

Search
[Next Page]
Eschweiler–Clarke vs Leuckart reaction
Is it possibile to predict which of these reactions will take a place with α-amino ketones? If it i ...
9-5-2018 at 07:27
by: biomechem
Homogeneous catalysts in condensation, charge
[rquote=506097&tid=80324&author=AvBaeyer][...] By the way, ethylenediamine diacetate is an e ...
6-2-2018 at 07:34
by: biomechem
Homogeneous catalysts in condensation, charge
[rquote=506066&tid=80324&author=zed]I once attempted to perform that condensation, using NaO ...
4-2-2018 at 15:35
by: biomechem
Homogeneous catalysts in condensation, charge
I wonder if the compound I think of could be used as a catalysts in the following reactions.

R-CH ...
4-2-2018 at 10:38
by: biomechem
Amides from urea
Is is possible to obtain every amide in the way acetamide is prepared from acetic acid and urea? I k ...
7-1-2018 at 12:36
by: biomechem
Halobenzene as an N-alkylating agent
I couldn't find any info is it possible for halobenzenes to react with primary alkylamines in standa ...
25-11-2017 at 13:30
by: biomechem
NMR and detecting CDCl3 insoluble, inorganic mixtures (Mandelin etc.)
Mandelin was just an example of what kind of reagent it could be.
How to determine what kind of su ...
7-10-2017 at 08:54
by: biomechem
NMR and detecting CDCl3 insoluble, inorganic mixtures (Mandelin etc.)
Let's say sb has only a few ml of unknown color reagent.

Is 1H NMR method suitable for to discrim ...
2-10-2017 at 09:04
by: biomechem
Steam distillation- vapour temperature, vacuum
@wg48
Aldol condensation is obviously catalyzed by both, but in the case I described distilled wate ...
9-9-2017 at 13:42
by: biomechem
Steam distillation- vapour temperature, vacuum
@wg48
Okay I've got my answer, when steam distilling temperature will always be lower than a temper ...
9-9-2017 at 03:04
by: biomechem
Steam distillation- vapour temperature, vacuum
Hello again,

Does vapour temperature have to exceed a boiling point of a steam-distilled compoun ...
9-9-2017 at 01:20
by: biomechem
MS 3A vs 5A drying organic compounds
I could hardly find any info about molecular sieves and its application in drying organic solvents. ...
12-8-2017 at 12:18
by: biomechem
IPA + Sulfuric acid -> red color
Why does the mixture of IPA with H[sub]2[/sub]SO[sub]4[/sub] left for some time turns into red color ...
1-8-2017 at 13:59
by: biomechem
Chiral centers, racemization of diastereoisomers, name of cpd with 3 chiral atoms.
Hello again,

1. Does the compounds with three chiral centers have special name analogously to dia ...
19-7-2017 at 22:00
by: biomechem
Does it exist - Iron cyanate
I wonder if rxn FeCl[sub]3[/sub] + 3KCNO -> 3KCl + Fe(CNO)[sub]3[/sub] occurs. I've been searchin ...
13-4-2017 at 09:18
by: biomechem
Acylation with acyl bromide
In the wiki I can read:
[quote]
Acid anhydrides tend to be less electrophilic than acyl chlorides, ...
3-3-2017 at 13:50
by: biomechem
Green Solution
A friend of mine who is not a chemist at all told me about one weird method. He weighted about 40 ml ...
3-3-2017 at 13:19
by: biomechem
The Short Questions Thread (4)
Predicting yield of Grignard reaction. How do chemists know which rxn will give better yield when th ...
15-1-2017 at 08:26
by: biomechem
Modification of Castner–Kellner process - bromine
[rquote=471844&tid=71769&author=Melgar]Br3- would mostly stay away from the cathode, what wi ...
13-1-2017 at 12:51
by: biomechem
Modification of Castner–Kellner process - bromine
Is it possible, and relatively easy to obtain bromine in the following process.
In a vertical tube, ...
13-1-2017 at 07:50
by: biomechem
Activated carbon properties and reduction with it
[rquote=471538&tid=71650&author=aga]This is an Amateur Chemistry Forum.

Please do not pos ...
13-1-2017 at 07:10
by: biomechem
Water pump problem
Rise the bucket a little bit so the pump will be less loaded.

[Edited on 9-1-2017 by biomechem]
9-1-2017 at 10:54
by: biomechem
Potassium thiocyanate reduction
[rquote=471337&tid=71686&author=Boffis]? What are you trying to do? Make carbon disulphide f ...
9-1-2017 at 07:47
by: biomechem
Potassium thiocyanate reduction
Does the reduction reaction of KSCN with carbon occurs like it is with KCNO? Will water extraction b ...
8-1-2017 at 11:09
by: biomechem
Proper Use of Thermocouple
[rquote=471056&tid=71237&author=unionised]The silicone sounds like a good idea- though it wo ...
6-1-2017 at 10:34
by: biomechem
[Next Page]

  Go To Top