Questions tagged [reagents]
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Oxidation of 1,2 dicarbonyls by tollens reagent
According to the wiki page on Tollen's reagent
https://en.wikipedia.org/wiki/Tollens%27_reagent#Qualitative_organic_analysis
It also gives a positive test with hydrazines, hydrazones, α-hydroxy ...
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Difference in reactivity of sodium ethoxide and NaOH in ethanol
What is the difference in the reaction that proceeds when we use the reagent $\ce{C2H5O- Na+}$ and $\ce{NaOH}$ in $\ce{C2H5OH}$ in with, say ethyl chloride. Is the latter considered to be "...
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Regarding Hinsberg reagent, potassium salt of primary amine soluble in base become insoluble after acidification?
Distinguish between ethylamine, diethylamine and triethylamine by using Hinsberg's reagent?
Ans. This reaction is useful for the distinction of primary, secondary and tertiary amines.
(i) Primary ...
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Find the missing chemical structures in the reaction sequence
I came across the following question, where a set of reagents are used, starting from a carbohydrate derivative.
I understand that this is some total synthesis reaction, but I cannot find which one.
...
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Recovery of antimony trichloride
I have bought 250 g of old antimony trichloride bottle (very cheap), it was never opened because it is sealed from manufacturer. But it was probably not stored well, or seal is not good, because there ...
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Can Acyl halides react with PCl5, if not, why?
I was searching for reaction of $\ce{PCl5}$ with carboxylic acids and found this mechanism:
Here a corresponding acyl chloride is formed from a carboxylic acid.
Now I doubt if this is the final ...
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Advice on Evaporation / Leakage of Marquis and Ehrlich's reagents
I had ordered both Marquis and Ehrlich's reagents from a manufacturer and they came in eye dropper like bottles inside of prescription pill like bottles. The perscription pill bottles also had cotton ...
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Blue Tinge for White Paint [closed]
I am trying to make an aqueous white paint with Mica and TiO2 as mainstay that gives a slight tinge of blue when it dries but should remain white while in solution.
So far I have tried optical ...
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Action of EtONa/EtOH on compound containing -CN group
In the above question, I know compound A will be prepared by just replacing -Cl with -CN group in the starting compound. I wanted to know what work would be C$_2$H$_5$ONa/EtOH doing in order to make ...
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Why do we have to use anhydrous AlCl3 in Gatterman-Koch Reaction?
In reference to a Gattermann-Koch reaction, such as the one shown below:
Why does $\ce{AlCl_3}$ have to be anhydrous?
Why can't we just use normal $\ce{AlCl_3(H2O)_6}$?
What would the reaction look ...
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Reduction of conjugated ketone with lithium aluminium hydride
I came across a question about reduction of a conjugated ketone with $\ce{LiAlH4}$.
Although it seemed quite easy at first sight, everything became cloudy as I dug deeper. My doubts regarding the ...
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How can I store reagent under inert gas?
I need to store some aliquots of 2,3,5-tribromothiophene. I searched for how to store reagent under inert gas, And I found this : https://avantilipids.com/tech-support/faqs/protect-from-oxidation
In ...
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What is the difference between lead tetraacetate and sodium periodate as reagents?
I recently came across this question which has confused me about the usage of $\ce{Pb(OAc)4}$ and $\ce{NaIO4}$ reagent.
Both the reagents have nearly the same cyclization mechanism, but the answer to ...
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Major product in reaction of butan-2-one + selenium dioxide
When reading about $\ce{SeO_2}$ I read this following reaction:
$\ce{CH3CH2COCH3 ->[SeO2] CH3CH2COCHO + CH3COCOCH3}$
In the following reaction it was stated that $\ce{CH3CH2COCHO}$ was the major ...
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Reagent notation: meaning of dash(-) and line(|) or slash(\) in reagents
I've seen a lot of reagents which have a slash between two compounds, such as Lindlar's catalyst which is $\ce{H2}$ along with $\ce{Pd|BaSO4}$. I know that the sulphur is a poison here but in general, ...
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