From the given pairs of compounds,in which wi | vedclass

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

Question

(C) The rate of $S_N2$ reaction depends on steric hindrance and the nature of the leaving group. $(a)$ $CH_3CH(CH_3)CH_2Br$ is a primary alkyl halide

Vedclass · Accepted Answer

$CH_3COCH_2Cl$ and $CH_3CH_2Cl$

Vedclass · Answer

(C) The rate of $S_N2$ reaction depends on steric hindrance and the nature of the leaving group. $(a)$ $CH_3CH(CH_3)CH_2Br$ is a primary alkyl halide with more steric hindrance than $CH_3CH_2CH_2CH_2Br$,so the second compound reacts faster. $(b)$ $I^-$ is a better leaving group than $Cl^-$,so $CH_3CH_2CH_2CH_2I$ reacts faster. $(c)$ $\alpha$-halocarbonyl compounds like $CH_3COCH_2Cl$ undergo $S_N2$ reactions much faster than simple alkyl halides like $CH_3CH_2Cl$ because the carbonyl group $(C=O)$ is electron-withdrawing and stabilizes the transition state through the overlap of its $\pi$ system with the p-orbitals of the transition state. $(d)$ $CH_3Br$ is less sterically hindered than $CH_3CH_2Br$,so $CH_3Br$ reacts faster. Therefore,the first compound reacts faster in option $(c)$.

From the given pairs of compounds,in which will the first compound undergo $S_N2$ reaction faster?

Similar Questions

The organic chloro compound,which shows complete stereochemical inversion during an $S_{N}2$ reaction,is

Which of the following is most reactive for $SN^1$ reaction?

The formation of butane nitrile is possible in which of the following reactions?

Which describes the best stereochemical aspects of the following reaction?
$Ph-C(CH_3)(CD_3)(OH) + HBr \rightarrow \text{Product}$

Arrange the following compounds in order of decreasing rate of hydrolysis for $S_N1$ reaction:
$(i)$ $C_6H_5CH_2Br$
(ii) $p-CH_3-C_6H_4-CH_2Br$
(iii) $p-CH_3CH_2-C_6H_4-CH_2Br$
(iv) $p-(CH_3)_2CH-C_6H_4-CH_2Br$

Vedclass Test Series

Exam Paper Generator

Online Exam Module