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Solution: Which of the following statements is  false regarding the li...

Question

Which of the following statements is  false regarding the limited synthetic utility of the Friedel-Crafts alkylation reaction?

 

A. The product is more reactive than the starting material leading to uncontrolled polyalkylation.

B. There are side reactions which may result from carbocation rearrangements.

C. The Friedel-Crafts alkylation reaction can only be used when there are meta-directing electron withdrawing substituents attached to the benzene ring.

D. The reactivity of the haloalkane increases directly with the polarity of the C-X bond in the order C-F > C-Cl > C-Br > C-I

E. Haloalkenes and haloalrenes cannot undergo reaction with benzene rings because the resultant vinyl cations and aryl cations are energetically inaccessible.