Which compound has the highest reactivity tow | vedclass

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(D) The reactivity of alkyl halides towards $S_{N}1$ reaction depends on the stability of the carbocation intermediate formed after the loss of the le

Vedclass · Accepted Answer

$C_{6}H_{5}C(CH_{3})(C_{6}H_{5})Br$

Vedclass · Answer

(D) The reactivity of alkyl halides towards $S_{N}1$ reaction depends on the stability of the carbocation intermediate formed after the loss of the leaving group $(Br^-)$.$1$. $C_{6}H_{5}CH_{2}^+$ (Primary benzylic carbocation)$2$. $C_{6}H_{5}CH^+(CH_{3})$ (Secondary benzylic carbocation)$3$. $C_{6}H_{5}CH^+(C_{6}H_{5})$ (Secondary benzylic carbocation with two phenyl rings)$4$. $C_{6}H_{5}C^+(CH_{3})(C_{6}H_{5})$ (Tertiary benzylic carbocation with two phenyl rings)The stability of carbocations follows the order: $3^\circ > 2^\circ > 1^\circ$. Furthermore,the presence of two phenyl groups provides extensive resonance stabilization to the carbocation.Compound $D$ forms a tertiary benzylic carbocation stabilized by two phenyl rings,making it the most stable carbocation and thus the most reactive towards $S_{N}1$.

Which compound has the highest reactivity towards $S_{N}1$ reaction?

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