Which of the following forms 2-Methylbut-2-en | vedclass

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

Question

(D) The dehydration of alcohols with concentrated $H_2SO_4$ follows $E1$ mechanism,which involves the formation of a carbocation intermediate.For $2-$

Vedclass · Accepted Answer

$2-$Methylbutan$-2-$ol

Vedclass · Answer

(D) The dehydration of alcohols with concentrated $H_2SO_4$ follows $E1$ mechanism,which involves the formation of a carbocation intermediate.For $2-$Methylbutan$-2-$ol $(CH_3-CH_2-C(CH_3)(OH)-CH_3)$,the protonation of the $-OH$ group followed by the loss of water molecule generates a tertiary carbocation: $CH_3-CH_2-C^+(CH_3)-CH_3$.This carbocation can lose a proton from the adjacent carbon atoms to form alkenes.Loss of a proton from the $C-3$ position yields $2-$Methylbut$-2-$ene $(CH_3-CH=C(CH_3)-CH_3)$,which is the most stable alkene according to Saytzeff's rule.

Which of the following forms $2-$Methylbut$-2-$ene on heating with concentrated sulphuric acid?

Similar Questions

Which of the following vapours passed over heated copper to form acetone?

Which of the following gives a $2^{\circ}$ alcohol as a major product upon reaction with $CH_{3}MgBr$ followed by $H_{2}O$?

Write the structures of the isomers of alcohols with molecular formula $C_4H_{10}O$. Which of these will exhibit optical activity?

When alcohol vapor is passed over heated reduced copper,the alcohol is converted into an alkene. Which type of alcohol is it?

Vedclass Test Series

Exam Paper Generator

Online Exam Module