Which of the following would not give 2-pheny | vedclass

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(C) Friedel-Crafts alkylation of benzene with $1-$butene or $2-$butanol (via carbocation rearrangement) yields $2-$phenylbutane as the major product.B

Vedclass · Accepted Answer

Butanoyl chloride $+ AlCl_3$ then $Zn, HCl$

Vedclass · Answer

(C) Friedel-Crafts alkylation of benzene with $1-$butene or $2-$butanol (via carbocation rearrangement) yields $2-$phenylbutane as the major product.Butyl chloride $+ AlCl_3$ undergoes rearrangement of the primary carbocation to a secondary carbocation,also yielding $2-$phenylbutane.However,the reaction of butanoyl chloride with $AlCl_3$ is a Friedel-Crafts acylation,which produces $1-$phenylbutan$-1-$one. Subsequent Clemmensen reduction $(Zn-Hg/HCl)$ yields $n-$butylbenzene ($1-$phenylbutane),not $2-$phenylbutane.

Which of the following would not give $2-$phenylbutane as the major product in a Friedel-Crafts alkylation reaction?

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