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Question
A group which deactivates the benzene ring towards electrophilic substitution but which directs the incoming group principally to the o - and p - positions is
A group which deactivates the benzene ring towards electrophilic substitution but which directs the incoming group principally to the o - and p - positions is
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Solution
The correct option is B -Cl
b)
Electron accepting groups which make the substitution difficult are known of deactivating groups. Thegroup or substituent already present on the ring also decides the position of incoming group.ortho and para directing groups are as follow
−CH3,C2H5(−R),−NH2,−OH , halogens, (Cl , Br , I)
b)
Electron accepting groups which make the substitution difficult are known of deactivating groups. Thegroup or substituent already present on the ring also decides the position of incoming group.ortho and para directing groups are as follow
−CH3,C2H5(−R),−NH2,−OH , halogens, (Cl , Br , I)
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