Haloalkanes and HaloareneshardMCQ SINGLE

When pure *o*-bromoanisole is meticulously treated with strong dissolved in liquid , what is the preHaloalkanes and Haloarenes Chemistry Question

Question

When pure *o*-bromoanisole is meticulously treated with strong $NaNH_2$ dissolved in liquid $NH_3$, what is the predominantly isolated major organic product formed exclusively via the benzyne mechanism?

Answer: A

💡 Solution & Explanation

The reaction perfectly proceeds via a highly strained substituted benzyne intermediate. The incoming $NH_2^-$ nucleophile attacks the triple bond to form the most thermodynamically stable carbanion. Because the $-OCH_3$ group strongly exhibits a stabilizing $-I$ effect, the intermediate carbanion positioned closer to the methoxy group is favored, reliably yielding the meta-substituted product (*m*-anisidine).

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