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Claisen rearrangement is an example of:
  • a)
    [2, 3] sigmatropic rearrangement.
  • b)
    [2, 4] sigmatropic rearrangement.
  • c)
    [1, 5] sigmatropic rearrangement.
  • d)
    [3, 3] sigmatropic rearrangement.
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
Claisen rearrangement is an example of:a)[2, 3] sigmatropic rearrangem...
Claisen rearrangement is an example of [3,3] sigmatropic rearrangement.

Explanation:
- Rearrangement reactions involve the movement of atoms or groups within a molecule, resulting in a new structure.
- Sigmatropic rearrangement is a type of rearrangement reaction that involves the simultaneous breaking and forming of sigma bonds.
- In Claisen rearrangement, a vinyl ether undergoes rearrangement to form an allyl ether, with migration of a carbon-carbon double bond from one position to another within the molecule.
- The reaction involves the simultaneous breaking and forming of three sigma bonds, hence it is a [3,3] sigmatropic rearrangement.
- Other examples of sigmatropic rearrangements include [2,3], [3,3], [1,3], [1,5], [2,5], etc. depending on the number of atoms involved in the rearrangement and the direction of migration.

In summary, Claisen rearrangement is an example of [3,3] sigmatropic rearrangement, which involves the simultaneous breaking and forming of three sigma bonds.
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Claisen rearrangement is an example of:a)[2, 3] sigmatropic rearrangem...
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Claisen rearrangement is an example of:a)[2, 3] sigmatropic rearrangement.b)[2, 4] sigmatropic rearrangement.c)[1, 5] sigmatropic rearrangement.d)[3, 3] sigmatropic rearrangement.Correct answer is option 'D'. Can you explain this answer?
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