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In the reaction

  • Option 1)

     dichloromethyl anion (\overset{\Theta}CHCl_{2})

  • Option 2)

    formyl cation (\overset{\bigoplus}{C}HO)

  • Option 3)

                 

    dichloromethyl cation ( \overset{\bigoplus}{C}HCl_{2} )  

      

  • Option 4)

    dichlorocarbene (:CCl2)

 

Answers (1)

As we learnt that

Reimer Tiemann's reaction -

The electrophile used is CCl2  (Dichloromethylene) -CHO is introduced in the ortho position.

- wherein

 

 

 

CHCl_{3} + NaOH \rightarrow \overset{\Theta }CCl_{3}+H_{2}O

                                                \downarrow -\overset{\Theta }Cl

                                              :CCl_{2}     (electrophile)This is incorrect.

 


Option 1)

 dichloromethyl anion (\overset{\Theta}CHCl_{2})

This is incorrect.

Option 2)

formyl cation (\overset{\bigoplus}{C}HO)

This is incorrect.

Option 3)

             

dichloromethyl cation ( \overset{\bigoplus}{C}HCl_{2} )  

  

This is incorrect.

Option 4)

dichlorocarbene (:CCl2)

This is correct.

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