A benzene ring deactivated by strong & moderate electron withdrawing groups such a molecule is not electron rich enough to under go friedel-craft's reaction Friedel craft reaction also does not occur with NH_(2) group as it react with AlCl_(3) and produce deactivating group. Q. Which of the following compound undergoes Friedel-crafts alkylation reaction

A benzene ring deactivated by strong & moderate electron withdrawing g

1.	A benzene ring deactivated by strong & moderate electron withdrawing groups such a molecule is not electron rich enough to under go friedel-craft's reaction Friedel craft reaction also does not occur with NH_(2) group as it react with AlCl_(3) and produce deactivating group. Q. Which of the following compound undergoes Friedel-crafts alkylation reaction
Answer» Solution :`NH-overset(O)overset(\|\|)(C)-CHO` is moderately activating GROUP. Highly activating and Highly de activating GROUPS do not GIVE friedal CRAFTS reactions.