Which of the following reacts most rapidly wi | vedclass

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Question

(C) The reaction of benzyl bromides with ethanol proceeds via an $S_N1$ mechanism,which involves the formation of a carbocation intermediate. The rate

Vedclass · Accepted Answer

$p$-Methoxybenzyl bromide

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(C) The reaction of benzyl bromides with ethanol proceeds via an $S_N1$ mechanism,which involves the formation of a carbocation intermediate. The rate of the reaction depends on the stability of the carbocation formed. The $p$-methoxy group is an electron-donating group ($+M$ effect),which significantly stabilizes the carbocation through resonance. Therefore,$p$-methoxybenzyl bromide forms the most stable carbocation and reacts most rapidly with ethanol.

Which of the following reacts most rapidly with ethanol?

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