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increasing order of enol content, CH3COCH2COCH3, CH3COCH3, CH3CHO, CH3COCOCH3.

increasing order of enol content,
CH3COCH2COCH3, CH3COCH3, CH3CHO, CH3COCOCH3.

Grade:12

6 Answers

Aarti Gupta
askIITians Faculty 300 Points
9 years ago
Increasing order of enol form:-
CH3CHO<CH3COCH3<CH3COCOCH3<CH3COCH2COCH3
Thanks & Regards
Aarti Gupta
askiitians Faculty

Samrat
14 Points
9 years ago
Maam can you please tell me the reason for this?
Samrat
14 Points
9 years ago
bta do yaar
UTTKARSH CHAURASIA
11 Points
7 years ago
Larger the number of ALPHA-Hydrogen on a ketone more is enol content. This is because the ==o can be broken and --OH os formed in the presence of more Alpha-H.
(Refer topic:TAUTOMERISM: Keto enol tautomerism)
Saloni gupta
15 Points
4 years ago
This is due to the increased number of alpha hydrogens associated with the carbons adjacent to the keto carbon.
As u can see in CH3CHO, there are only 3 alpha hydrogens 
Similarly, in CH3 COCH3, there are 6 alpha 
AND now if we see CH3COCOCH3. Since this is an electron withdrawing group and as we know electron withdrawing group increases the stability therefore it is more stable.
And CH3COCH2COCH3 is the most stable dur to conjugationor repetition of double bond and presence of electron withdrawing group in in 
Rishi Sharma
askIITians Faculty 646 Points
3 years ago
Dear Students
Please find below the solution to your problem.

Keto enol tautomerism is possible between a ketone and an aldehyde.
The keto and enol forms are tautomers of each other.
Usually, the keto form is more stable than enol form.
Enol form is stable when there is hydrogen bonding.
It is stable when there is a carbon carbon double bond.
The more substituted alkene makes the enol bond stable.
Hence, CH3CHO<CH3COCH3<CH3COCOCH3<CH3COCH2COCH3 is the correct increasing order of enol content.
Thanks and Regards

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