Which one of the following statements is True | vedclass

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Question

(C) The addition of $PhLi$ (a nucleophile) to the double bond involves the formation of a carbanion intermediate.For compound $1$ (fulvene derivative)

Vedclass · Accepted Answer

$PhLi$ reacts readily with $1$ but does not add to $2$

Vedclass · Answer

(C) The addition of $PhLi$ (a nucleophile) to the double bond involves the formation of a carbanion intermediate.For compound $1$ (fulvene derivative),the addition of $PhLi$ leads to a cyclopentadienyl anion,which is aromatic ($6 \pi$ electrons) and thus highly stable.For compound $2$ (heptafulvene derivative),the addition of $PhLi$ leads to a cycloheptatrienyl anion,which is anti-aromatic ($8 \pi$ electrons) and thus highly unstable.Therefore,$PhLi$ reacts readily with $1$ to form a stable aromatic species but does not add to $2$ because it would form a highly unstable anti-aromatic species.

Which one of the following statements is $True$?

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