Keto Enol Tautomerism - Acidic & Basic Conditions
This organic chemistry video tutorial explains the concept of the keto enol taumerism / tautomerization process. It provides the acid catalyzed reaction mechanism of ketone converting to its enol tautomer and the base catalyzed version as well. This video contains plenty of examples and practice problems of drawing the enol tautomer from the ketone. It explains the relative stability of certain enols due to conjugation of the double bond, formation of an intramolecular hydrogen bond, and the formation of aromatic ring. Examples include acetone, 2,4-pentane dione, and phenol.
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@ipshita792
4 жыл бұрын
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@manikantan4809
3 жыл бұрын
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@Bob-nc2zt
7 ай бұрын
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@Treeditya
7 ай бұрын
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@venus0.o153
7 ай бұрын
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@milestogo407
2 жыл бұрын
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Using this to aid my studying for MCAT exam
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@keerthisree.s2556
6 ай бұрын
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@LUFFYDMONKEY-so6wt
3 ай бұрын
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3 ай бұрын
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Most relevant content for Chemistry of IIT JEE
@yaminyaminyaminn
4 ай бұрын
isko dekhne ke baad tu air 1 aur main air 2 😁
@LUFFYDMONKEY-so6wt
3 ай бұрын
air 1,2 k liye practice bahut chaihe bhai but concept wise ye channel really acha smjha rha h @@yaminyaminyaminn
Thank you. Im in med school in Germany. Helped me a ton
@arnavyadav002
2 жыл бұрын
May I know that why acetone is much more stable than it's enol form??
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@Bikrampaswan01
3 жыл бұрын
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Can both the ketone undergo enolization?
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@LUFFYDMONKEY-so6wt
3 ай бұрын
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@SookooNtumse
6 жыл бұрын
Is phenol shows ketoenoltautomer
The enolic content in acetyl acetone is 75%-76%
@sumitraturi7791
3 жыл бұрын
Coreect
Thank u 😊
at 2:50, isn't the major product 2,4 pentadione (acetylacetone) due to conjugation.
@dries8200
4 жыл бұрын
yes due to resonance (conjugation) and also due to a hydrogen bond between the keto and enol group. The keto-enol tautomer has 76% appearance. I think he made a little mistake there.
Thank u very much sir
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@rudrasharma1592
3 жыл бұрын
India
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Good one
Why acetone is more stable than it's enol form? Plz explain I am in big trouble 🙏
@metroidfan77yes65
2 жыл бұрын
Because a carbon-oxygen double bond (ketone) is more stable than a carbon-carbon double bond (enol).
@arnavyadav002
2 жыл бұрын
@@metroidfan77yes65 but why that c double bond carbon is more stable than c double bond oxygen? I cannot relate this point as my teacher also has told the same
@metroidfan77yes65
2 жыл бұрын
I guess it's because of the electronegativity difference. There is a partial negative charge on O and a partial positive charge on C.
@arnavyadav002
2 жыл бұрын
@@metroidfan77yes65 ohk thanks
Does anyone know WHY enols are unstable?
@chitranshjawere4953
4 жыл бұрын
Bond energy(C=O) >Bond energy(C-O) This makes keto form more stable as compared to enolic form.
@chitranshjawere4953
4 жыл бұрын
@Nissipriya Anandhakrishnan Energy is inversely related to stability . More energy in a substance,the less stable it is.😄
@Chempeep
4 жыл бұрын
Might be,Enols form enolate ion where the -ve charge on oxygen atom made it reactive towards a reaction,destabilising the enol structure..
@kk-et8xx
4 жыл бұрын
@Nissipriya Anandhakrishnan he means bond dissociation enthalpy ( which is basically the energy required to break a bond) more energy is required to break a strong bond like c=o as compared to the c=c bond hence in most cases (not every case)the keto form is more stable than the enol form
@manikantan4809
3 жыл бұрын
@@chitranshjawere4953 yeah but he is referring to bond dissociation energy which is negative so what more in magnitude is lesser You get the point right but your statement is correct stability and energy arr inversely related
how does the H3O+ not get consumed here i don't understand.. it is first transformed to H2O then again to H3O+, why is this not a consumption? (sorry just started my studies)
@ihaveagoal4665
3 жыл бұрын
After the reaction you find the H3O+ in the same form as it was before the rxn, so even though it is used in the reaction, it isn't consumed permanently and you get is back in it's original form so basically it is used to speed up the process, and that is the definition of catalysts: they are the substance that increases the rate of a reaction without itself being consumed. we get them back in the final product. i might be wrong since i'm also a student.
@forgive_me_for_being_unfunny
Жыл бұрын
@@ihaveagoal4665 U are correct ! The amount of h30+ used for reaction is gotten back after the reaction so it can be cancelled out as being on reactant side of first reaction and on product side of second while practically performing experiments it always seems that the h30+(or anything else in similar situation) isn't even used and just acted as a catalyst
What does stability mean?
@adityasharma2380
2 жыл бұрын
I laughed for a second and then thought ......he is joking right? Are you?
@Mikhail-tal-the-GOAT
Жыл бұрын
Good question Stability means the tendency to resist any change in structure due to external force
Why actylacetone is 70% enolic)
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2 ай бұрын
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@NoName069
22 күн бұрын
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@dominiccenteno1233
4 жыл бұрын
I always play his videos at 1.25 or 1.5 speed. I hope this helps
@distortionofsacred
4 жыл бұрын
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@bailassandijani3788
3 жыл бұрын
it doesn't matter the time all the matter is that you are understanding the mechanism ,well I do not feel that the professor is in hurry all he is care about that we are receiving the information correctly