The acidic hydrolysis of ether (X) shown belo | vedclass

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

Question

(C) The reaction proceeds by an $S_N1$ mechanism,which involves the formation of a carbocation intermediate.The rate of the reaction depends on the st

Vedclass · Accepted Answer

two phenyl groups are replaced by two para-methoxyphenyl groups.

Vedclass · Answer

(C) The reaction proceeds by 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.Greater the electron-releasing effect of the attached groups,the greater is the stability of the intermediate carbocation,and consequently,the faster is the rate of the reaction.The $p-MeO-C_6H_4-$ group is a strong electron-donating group due to the $+M$ effect of the $-OMe$ group.If two phenyl groups are replaced by two $p-methoxyphenyl$ groups,the strong $+M$ effect of the two $-OMe$ groups stabilizes the carbocation significantly better than the unsubstituted phenyl groups,thereby making the reaction the fastest.

The acidic hydrolysis of ether $(X)$ shown below is fastest when :

Similar Questions

Identify $Z$ in the sequence of reactions :
$CH_3CH_2CH=CH_2$ $\xrightarrow{HBr/H_2O_2} Y$ $\xrightarrow{C_2H_5ONa} Z$

Consider the reaction sequence:
Dimethyl ketone $\xrightarrow[(ii) H_2O]{(i) CH_3MgCl} X$ $\xrightarrow[(ii) CH_3Br]{(i) Na} Y$
How many $sp^3$ carbons are present in $Y$?

Ethanol reacts with $H_2SO_4$ at $140^\circ C$ to form

What are the major products from the following reaction?
$C_6H_5-O-CH_2-C_6H_5 + HI \xrightarrow{\text{heat}} ?$
$(I) C_6H_5I + C_6H_5CH_2OH$
$(II) C_6H_5OH + C_6H_5CH_2I$
$(III) C_6H_5OCH_2OH + C_6H_5I$
$(IV) C_6H_5OCH_2I + C_6H_5OH$

Which of the following has the lowest boiling point?

Vedclass Test Series

Exam Paper Generator

Online Exam Module