Among the following,the compounds which can u | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(C) $S_{N}1$ reaction proceeds via the formation of a carbocation intermediate. The rate of $S_{N}1$ reaction depends on the stability of the carbocat

Vedclass · Accepted Answer

$II$ and $III$ only

Vedclass · Answer

(C) $S_{N}1$ reaction proceeds via the formation of a carbocation intermediate. The rate of $S_{N}1$ reaction depends on the stability of the carbocation formed.$I$: This is a vinylic halide. The resulting vinylic carbocation is highly unstable due to the $sp$ hybridization of the positively charged carbon.$II$: This is a tert-butyl bromide. It forms a stable $3^{\circ}$ carbocation,which is stabilized by hyperconjugation.$III$: This is $p$-methoxybenzyl bromide. It forms a resonance-stabilized benzylic carbocation,which is further stabilized by the electron-donating $+R$ effect of the $-OCH_3$ group.$IV$: This is a bridgehead bromide ($1$-bromobicyclo[$2.2$.$1$]heptane). Formation of a carbocation at the bridgehead position is highly unstable due to Bredt's rule,which prevents the planar geometry required for the carbocation.Therefore,only compounds $II$ and $III$ can undergo an $S_{N}1$ reaction.

Among the following,the compounds which can undergo an $S_{N}1$ reaction in an aqueous solution are:

Similar Questions

Which of the following compounds is most reactive towards $S_{N^1}$ reaction?

$n-$Heptane $\xrightarrow[\Delta ]{Al_2O_3} P$ $\xrightarrow{[1 \ mole]}{NBS} Q$. Product $Q$ will be

The $Wurtz-Fittig$ reaction involves the condensation of:

In the above reaction,the maximum Saytzeff product will be obtained when

The following reaction,$(CH_3)_3CBr + H_2O \to (CH_3)_3COH + HBr$,is an example of:

Vedclass Test Series

Exam Paper Generator

Online Exam Module