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Write the electrophile and intermediate ...

Write the electrophile and intermediate in Reimer-Tiemann reaction.

Text Solution

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`C-overset(ddot)(Cl)-Cl` (dichlorocarbene) is the electrophile.
The intermediate is phenoxy dichloromethane.
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Knowledge Check

  • Electrophiles are

    A
    Electron attracting species
    B
    Nucleus attracting species
    C
    Electron repelling species
    D
    Nucleus repelling species

  • (A) Dichloro carbene acts as electrophile in Reimer-Tiemann reaction. (R) Dichloro carbene has two electrons on carbon atom.

    A
    Both (A) and (R) are true and (R) is the correct explanation of (A)
    B
    Both (A) and (R) are true and (R) is not the correct explanation of (A)
    C
    (A) is true but (R) is false
    D
    Both (A) and (R) are false

  • The electrophile involved in the above reaction is

    A
    Dichloro carbene `( C Cl_2) `
    B
    Trichloro methl anion ` (overset((-)) C Cl_3) `
    C
    Formyl cation `(C^(+) HO) `
    D
    Dichloro methyl cation `(C^(+) HCl_2)`

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    Explain the following with an example. (i) Kolbe’s reaction. (ii) Reimer-Tiemann reaction. (iii) Williamson ether synthesis. (iv) Unsymmetrical ether .

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