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Question

The Baeyer-Villiger reaction of 3-pentanone with a peroxy acid, RCO3H, will yield

A
pentanal
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B
3-pentanol
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C
ethyl propanoate.
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D
diethyl ether.
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Solution

The correct option is C ethyl propanoate.
In Baeyer-Villiger oxidation, the aldehyde is oxidised to carboxylic acid and the ketone is oxidised to ester group.
In this reaction, the oxygen from peroxy acid is getting inserted between the carbonyl group and H of an aldehyde and the 'R' of ketone.

Mechanism of Baeyer-Villiger oxidation:
Step -1 : Formation of tetrahedral intermediate

Step-2 : Rearrangement

Similarly, 3-pentanone underoes Baeyer-villiger oxidation to form ethyl propanoate.

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