Which of the following undergoes decarboxylat | vedclass

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

Question

(B) Decarboxylation of carboxylic acids upon heating is facilitated by the presence of an electron-withdrawing group at the $\beta$-position,such as a

Vedclass · Accepted Answer

Vedclass · Answer

(B) Decarboxylation of carboxylic acids upon heating is facilitated by the presence of an electron-withdrawing group at the $\beta$-position,such as a carbonyl group ($\beta$-keto acid). This is because the reaction proceeds through a cyclic six-membered transition state,which is stabilized by the formation of an enol intermediate. Among the given structures,option $B$ represents a $\beta$-keto acid (specifically,$2$-phenyl-$3$-oxopentanoic acid),where the carboxyl group is at the $\alpha$-position relative to the carbonyl group. Therefore,it undergoes decarboxylation most readily.

Which of the following undergoes decarboxylation most readily on being heated?

Similar Questions

What are $X$ and $Y$ respectively in the following reactions?

The major products $Q$ and $R$ from the following reactions,respectively are:

Acid hydrolysis of $X$ yields two different organic compounds. Which one of the following is $X$?

If $(\pm)$ $2$-methylbutanoic acid is esterified by reaction with $(\pm)$ $2$-butanol,how many optically active compounds will be present in the final equilibrium reaction mixture?

Which of the following tetracarboxylic acids forms a di-anhydride upon heating?

Vedclass Test Series

Exam Paper Generator

Online Exam Module