First slide
Chemical properties of Haloarenes

From the following halogen compounds the most reactive compound towards nucleophilic substitution is


Carbanion intermediate is formed. Negative charge delocalizes at ortho and para positions.

EWG at ortho, para positions stabilizes the negative charge

 EDG at ortho, para positions destabilizes the negative charge.

 NO2 . EWG

 CH3   . EDG

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