Identify compound B in the following reaction | vedclass

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

Question

(D) $1$. The reaction of cyclopentanone with hydroxylamine $(H_2NOH)$ at $pH = 4.5$ is a nucleophilic addition-elimination reaction that forms an oxim

Vedclass · Accepted Answer

Piperidin$-2-$one

Vedclass · Answer

(D) $1$. The reaction of cyclopentanone with hydroxylamine $(H_2NOH)$ at $pH = 4.5$ is a nucleophilic addition-elimination reaction that forms an oxime,which is compound $(A)$.$2$. Compound $(A)$ is cyclopentanone oxime.$3$. When cyclopentanone oxime $(A)$ is treated with an acid catalyst $(H^+ / \Delta)$,it undergoes the Beckmann rearrangement.$4$. The Beckmann rearrangement of a cyclic oxime results in the expansion of the ring by inserting a nitrogen atom,forming a cyclic amide (lactam).$5$. For cyclopentanone oxime,the ring expansion leads to the formation of a six-membered lactam,which is piperidin$-2-$one (also known as $\delta$-valerolactam),which is compound $(B)$.

Identify compound $B$ in the following reaction sequence:
Cyclopentanone $+ H_2NOH$ $\xrightarrow{pH = 4.5, \Delta} (A)$ $\xrightarrow{H^+ / \Delta} (B)$

Similar Questions

When $(X)$ reacts with $(Y)$ in the presence of dilute $(Z)$ solution,$3-$hydroxybutanal is formed. What are $(X), (Y),$ and $(Z)$?

Which of the following does not give a brick red precipitate with Fehling solution?

In the given reaction sequence,the conversion of $X$ to $Y$ is an example of:

The reaction in which $NaCN/C_2H_5OH/HOH$ is used is:

Hex$-4-$en$-2-$ol on treatment with $PCC$ gives $'A'.$ $'A'$ on reaction with sodium hypoiodite gives $'B',$ which on further heating with soda lime gives $'C'.$ The compound $'C'$ is $....... .$

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Identify compound $B$ in the following reaction sequence:Cyclopentanone $+ H_2NOH$ $\xrightarrow{pH = 4.5, \Delta} (A)$ $\xrightarrow{H^+ / \Delta} (B)$