Question

Practice the Skill 18.18

For each compound below, identify which position(s) is/are most likely to undergo an electrophilic aromatic substitution reaction based on electronic effects only.

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Answer 1

solution : 0 For electrophilic substitution in aromatic Compounds :- Election relasing genoup increase electron density at ortho and para, positions. Example = - Nibe, -OH : Election with drawing groups decrease electron density at or the and para positions, so the electrophile attacks meta position. Example = H, Link, etc. Ortho This is the answer as, Nitrogen is electron realsing substituent. Ketone electron with drawing substituent. with respect to buta with respect meta Nitsogen group. to ketone group. i No2 ~ cob The arscow show indicates position meta- to both Nitro groups which are deactivating. Therefore it is The site for electrophilic attack The alky) Substituent also in creases realtion by t I effect. I substituent al