Shweta Thakur posted an Question
February 14, 2021 • 18:29 pm 30 points
  • IIT JAM
  • Chemistry (CY)

What is below br2 and what is its role here ...i think it's acetic acid ..

Prunsatur ed ester) COH H Br KOH ACOH Br Br 17, Aldal Condancatic

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    Priyanshu kumar best-answer

    Bromination of ketones occurs smoothly with bromine in acetic acid. The first step occurs in a cyclic way resulting in protonation of the carbonyl and formation of the enol occurring at the same time. The next step is the attack of the enol on the bromine. The proton on the carbonyl is then lost to yield bromoacetone.

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    Dinesh khalmaniya 1 best-answer

    here in presence of acetic acid bromination takes place at alpha C of carbonyl group. Here first enol is formed in presence of Acetic acid then substitution of Br takes place. Similar mechanism is given below

    images (34).jpeg
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