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Questions tagged [carbonyl-compounds]

For questions about compounds containing the carbonyl group, C=O, the carboxylic acid group (-COOH), or its derivatives (anhydrides/esters/amides/acid halides). For questions about complexes involving carbon monoxide as a ligand use [carbonyl-complexes] instead.

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What causes the four proton signals closest to the carbonyl in tetraphenylcyclopentadienone to appear more upfield than the other 16 aromatic protons?

What causes the four proton signals closest to the carbonyl in tetraphenylcyclopentadienone to appear more upfield than the other 16 aromatic protons? It's my current understanding that the carbonyl ...
E B's user avatar
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-2 votes
1 answer
63 views

Mechanism of Jones oxidation

We were required to find the number of moles of $CrO_3$ required to oxidize 6 moles of heptan-2-ol. I tried balancing the equation but I am not aware of the final chromium containing product. Knowing ...
JackSparrow's user avatar
3 votes
0 answers
78 views

Why does the rate law of Cannizzaro reaction include a term for base?

The rate law of Cannizzaro reaction in mild base is $$\mathrm{rate_1} = k[\ce{RCHO}]^2 [\ce{OH^-}],\tag{1}$$ while in concentrated base the rate becomes $$\mathrm{rate_2} = k[\ce{RCHO}]^2[\ce{OH^-}]^2\...
mechanist's user avatar
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2 answers
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What exactly does 'isomerism' mean?

Today, I was confronted with this question - Is 2-methylpenten-3-one an isomer of 5-hexen-1-ol? Some people say yes; while some say otherwise. I'll put forward the logic on both sides. The side of ...
ChemGeek007's user avatar
2 votes
0 answers
72 views

Why aren't aldehydes more acidic than saturated alcohols?

Aldehydes (pKa ~17-20) and ketones (pKa >20) are worse acids than alcohols (pKa ~15-16). I have seen that the equilibrium of aldehydes (and ketones) with their hydrates greatly decreases pKa values ...
mechanist's user avatar
8 votes
2 answers
661 views

FTIR Spectra: Did I synthesize ethyl gallate from gallic acid?

I successfully synthesized ethyl gallate from gallic acid and ethanol (of course there are other reagents too, like DCC and Pyridine). Before conducting FTIR analysis, I performed column ...
Jonathan's user avatar
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2 votes
0 answers
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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 ...
mark's user avatar
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-2 votes
1 answer
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Why is Chromium hexacarbonyl diamagnetic?

So there was a question in coordination chemistry regarding the nature of $\ce{[Cr(CO)_6]}$ The book had the question under VBT and solved it using "strong ligands cause all electrons to pair up&...
Aurelius's user avatar
-3 votes
1 answer
90 views

Can someone help me name this molecule? [closed]

I'm having a hard time deciphering it's IUPAC name like I have 4-butanoxy and 3-propanoxy so far, but how do you put it all together with the double-bonded oxygen? Thank you and really sorry for the ...
i dont know how to code's user avatar
0 votes
1 answer
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Is acetophenone a saturated compound?

In many of the sites in online, acetophenone is mentioned as an unsaturated compound because of the presence of C=C bond in the phenyl group. But, many of my teachers say that it is a saturated ...
Vinay5101's user avatar
1 vote
0 answers
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Does nitroprusside test only work for ketones and not aldehydes?

Since the Brady test will be positive for both aldehydes and ketones, we need a way to distinguish between the two. The Tollen's test is only positive for aldehydes (and $\alpha$-hydroxyketones). I ...
AVS's user avatar
  • 521
4 votes
1 answer
307 views

Nomenclature of C6H5CO-O-NH2

How to name the following compound using IUPAC nomenclature? I found benzyl carbamate to be very close to my structure, but couldn't find an exact compound online which matches mine.
kzmom's user avatar
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0 votes
0 answers
177 views

Oxidation of substituted cyclic ketone using permanganate

From what I had learnt, reaction of this with $\ce{KMnO4}$ should give a dicarboxylic acid after cleavage of the carbon-carbon bond. But apparently this is the reaction that happens: Why is there a ...
AVS's user avatar
  • 521
-3 votes
1 answer
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Why is Benzaldehyde more reactive than propanone in nucleophilic addition, even though it has resonance? [closed]

I am not 100% sure that this is true but this was given in the JEE Main 2020 (03 Sep Shift 2). Benzaldehyde has resonance and propanone has just +I effect why is then benzaldehyde more reactive in ...
SAM4RTH's user avatar
0 votes
1 answer
93 views

Acidity of formic acid and 3-fluoropropanoic acid [duplicate]

I'm getting conflicting answers when I want to find out the acidity of 3-fluoropropanoic acid and formic acid. I argue that 3-fluoropropanoic acid is stronger acid than formic acid as it has a -I ...
Akilan SS's user avatar

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