Shweta Thakur posted an Question
November 07, 2020 • 22:08 pm 30 points
  • IIT JAM
  • Chemistry (CY)

Can u give the mechanism for this.. e is heated with hot kmno, solution, cleavage of the c = c bond occur

yntneSes where y1elds of the (b) Oxidation with hot KMnO, solution ) Alkenes. When an alkene is heated with hot KMnO, solution, cleavage of the C = C bond occurs leading to the formation of carboxylic acids, ketones and carbon dioxide depending upon the nature of the alkene as shown below: With teminal alkenes, one of the products is always methanoic acid (formic acid) which on further oxidation gives CO, + H,O. For example, O KMnO4. KOH 2[H-C-OH] 2 C0, + 2H,O CH, CH, + 4 [O] 373-383 K Ethene Methanoic acid (Formic acid) Sn (Ethylene)

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    Dinesh khalmaniya 1 Best Answer

    formation of a cyclic intermediate which is formed by a syn addition to the double bond. The intermediates are then hydrolyzed by water during which the stereochemistry of newly-formed C-O bonds is retained thus producing cis-diols:

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    sir ye to alcohol dega

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    yes

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    further oxidation cleavage of diol

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    how

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    check it

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    this further oxidation happens in acidic condition n

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    yes

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    KMnO4 is strong acid so it oxidation until we get final product

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    then what is the advantage of doing this reaction in alkaline medium

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    check it

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    we use medium according what we want to prepare.

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    it also depends on reactant which we are taking so don't be confused

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    yes sir pd liya abhi mane ...that's why in acidic we get colourless solution when kmno4 is add because in this kmno4 is completely oxidized

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    yes yes👍

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