Which of the following alcohols undergoes deh | vedclass

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

Question

(C) The dehydration of alcohols with concentrated $H_2SO_4$ proceeds via the formation of a carbocation intermediate.Substituents that donate electron

Vedclass · Accepted Answer

$p-CH_3OC_6H_4CH(OH)CH_3$

Vedclass · Answer

(C) The dehydration of alcohols with concentrated $H_2SO_4$ proceeds via the formation of a carbocation intermediate.Substituents that donate electron density to the carbocation center stabilize it,thereby increasing the rate of dehydration.The $-OCH_3$ group is a strong electron-donating group due to its $+M$ (mesomeric) effect,which significantly stabilizes the resulting carbocation.In contrast,$-NO_2$ and $-Cl$ are electron-withdrawing groups that destabilize the carbocation.Therefore,$p-CH_3OC_6H_4CH(OH)CH_3$ undergoes dehydration most easily.

Which of the following alcohols undergoes dehydration most easily with concentrated $H_2SO_4$?

Similar Questions

Suggest the reagent for the following conversion:

Which of the following gives immediate turbidity on reaction with Lucas reagent $(HCl/ZnCl_2)$?

The major product $[B]$ in the following reaction is:
$CH_3-CH_2-CH(CH_3)-CH_2-O-CH_2-CH_3$ $\xrightarrow[Heat]{HI} [A] (alcohol)$ $\xrightarrow[\Delta]{H_2SO_4} [B]$

The substitution of the $-OH$ group of an alcohol or the $-COOH$ group of a carboxylic acid with a $-Cl$ atom is achieved by using which of the following?

On heating glycerol with excess amount of $HI$,the product formed is -

Vedclass Test Series

Exam Paper Generator

Online Exam Module