Which among the following does NOT undergo Wi | vedclass

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(C) Williamson's synthesis involves an $S_N2$ reaction between an alkyl halide and an alkoxide ion. For the reaction to proceed, the alkyl halide must

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$C_6H_5Br$

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(C) Williamson's synthesis involves an $S_N2$ reaction between an alkyl halide and an alkoxide ion. For the reaction to proceed, the alkyl halide must be primary $(1^\circ)$ or secondary $(2^\circ)$ to minimize steric hindrance. $C_6H_5Br$ (bromobenzene) does not undergo $S_N2$ reactions because the $C-Br$ bond has partial double-bond character due to resonance, and the $sp^2$ hybridized carbon atom is sterically hindered. Therefore, $C_6H_5Br$ does not undergo Williamson's synthesis.

Which among the following does $NOT$ undergo Williamson's synthesis?

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