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In the electrophilic substituion of benz...

In the electrophilic substituion of benzene ring, the second substituent is directed by the group already present. Electron releasing groups (+I and +M) are ortho-para-directing and activating, whreas the electron withdrawing groups (-I and -M) are meta-directing and deactivating.
Halogens are placed under the category of +T (Tautomeric) groups because they have -Ibdyctuve abd +Mesomeric effect. These groups are deactivating but ortho-para-directing.
In the introduction of third group to the benzene ring, the product of minimum steric gindrance is formed.
Which of the following is not an ortho, para-directing group ?

A

`-F`

B

`-NC`

C

`-OCH_(3)`

D

`-C CI_(3)`

Text Solution

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The correct Answer is:
d
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