Simun Mishra posted an Question
July 24, 2020 • 23:44 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Can u send me mechanism of baeyer villiger oxidation ?

2 Answer(s) Answer Now
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    Priyanshu kumar

    https://youtu.be/8xYW5-9NvCQ see this video simun...nice explanation

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    check this video...it helps

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    Dinesh khalmaniya 1 Best Answer

    In the first step of the reaction mechanism, the peroxyacid protonates the oxygen of the carbonyl group.[1] This makes the carbonyl group more susceptible to be attacked by the peroxyacid.[1] Next, the peroxyacid attacks the carbon of the carbonyl group forming what is known as the Criegee intermediate.[1] Through a concerted mechanism, one of the substituents on the ketone migrates to the oxygen of the peroxide group while a carboxylic acid leaves.[1] This migration step is thought to be the rate determining step.[2] Finally, deprotonation of the oxocarbenium ion produces the ester.[1]

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    mechanism

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    The migratory ability is ranked tertiary > secondary > aryl > primary.[6] Allylic groups are more apt to migrate than primary alkyl groups but less so than secondary alkyl groups.[4] Electron-withdrawing groups on the substituent decrease the rate of migration.[7]

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    I reading sir

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    okay

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    their is 3 steeps na sir

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    yes

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    got it?

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    what is criegee rearrangment sir

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    now check it and practice example

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    but sir concerted mechanism is in which breaking and adding in one steep here their is 3 steeps so why sir ?

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    yes

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    why ....sir ?

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    here cegree intermediate is formed in which formation of bond and breaking Bond takes place simultaneously. so rearrange to give product

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    The rearrangement of peroxy ester into ketone, ester, or carbonate and alcohol via oxygen insertion or consecutive oxygen insertion is generally known as the Criegee rearrangement.

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    yes sir I got it ..😊🙏

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    😊👍

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