Identify A and predict the type of reaction.3 | vedclass

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(A) The reaction of $3	ext{-bromoanisole}$ with $NaNH_2$ proceeds via the formation of a benzyne intermediate.$1$. The strong base $NH_2^-$ abstracts

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$3	ext{-aminoanisole}$ and elimination-addition reaction

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(A) The reaction of $3	ext{-bromoanisole}$ with $NaNH_2$ proceeds via the formation of a benzyne intermediate.$1$. The strong base $NH_2^-$ abstracts the ortho-hydrogen relative to the $Br$ atom,leading to the elimination of $Br^-$ and the formation of a benzyne intermediate.$2$. The nucleophile $NH_2^-$ can then attack the benzyne intermediate at two different positions.$3$. Attack at the meta-position (relative to the $OCH_3$ group) leads to a more stable carbanion intermediate because the negative charge is closer to the electron-withdrawing $OCH_3$ group.$4$. Protonation of this intermediate yields $3	ext{-aminoanisole}$ as the major product.$5$. Since the incoming nucleophile ends up on the same carbon atom where the leaving group was originally present,this is not a cine substitution reaction; it is an elimination-addition reaction.

Identify $A$ and predict the type of reaction.
$3\text{-bromoanisole} \xrightarrow{NaNH_2} A$

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Identify $A$ and predict the type of reaction.$3\text{-bromoanisole} \xrightarrow{NaNH_2} A$