Benzene has six pi electrons delocalized in sex p-orbitals that overlap above and below the plane of the ring. These loosely held pi electrons make the benzene ring e^(-) rich and so it reacts with electrophiles. Benzene follows huckel's rule so it is specially stable. Reactions that keep the aromatic ring intact are therefore favoured. What acid chloride would be needed to prepare the following ketones from benzene using Friedel-Crafts acylation.

Benzene has six pi electrons delocalized in sex p-orbitals that overla

1.	Benzene has six pi electrons delocalized in sex p-orbitals that overlap above and below the plane of the ring. These loosely held pi electrons make the benzene ring e^(-) rich and so it reacts with electrophiles. Benzene follows huckel's rule so it is specially stable. Reactions that keep the aromatic ring intact are therefore favoured. What acid chloride would be needed to prepare the following ketones from benzene using Friedel-Crafts acylation.
Answer» `(CH_(3))_(2)-CH-CH_(2)-CH_(2)-overset(O)overset(\|\|)(C)-Cl` `(CH_(3))_(2)CHCH_(2)CH_(2)-Cl` SOLUTION :`{:(,PCl_(5)(g)iffPCl_(3)(g)+Cl_(2)(g)),("Mole of equilibrium",2-0.8=1.2 "0.80.8"):}` Total moles = 2.8 at equilibrium `K_(C )=(0.8xx0.8)/(1.2)((1)/(2))^(1)=(4)/(15)=0.267`