In the following reaction, the major product | vedclass

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

Question

(C) The reaction proceeds in two steps:$1$. The Grignard reagent $CH_3MgBr$ acts as a nucleophile and attacks the carbonyl carbon of $5-chloropentan-2

Vedclass · Accepted Answer

$2,2-$dimethyltetrahydrofuran

Vedclass · Answer

(C) The reaction proceeds in two steps:$1$. The Grignard reagent $CH_3MgBr$ acts as a nucleophile and attacks the carbonyl carbon of $5-chloropentan-2-one$. This forms an alkoxide intermediate.$2$. Upon workup with $H_3O^+$, the alkoxide oxygen is protonated to form an alcohol. However, in the presence of the internal chloride group, the alkoxide oxygen performs an intramolecular nucleophilic substitution $(S_N2)$ reaction, displacing the chloride ion to form a five-membered cyclic ether, $2,2-dimethyltetrahydrofuran$.

In the following reaction, the major product $(H)$ is

Similar Questions

Benzalacetone is the product of mixed aldol condensation between benzaldehyde $(C_6H_5CHO)$ and acetone $(CH_3COCH_3)$. What is its structure?

What is the structure of $C$?

Which of the following can undergo a disproportionation reaction on heating with concentrated alkali?

Give applications of cyanohydrins with acetaldehyde with suitable reactions. $OR$ Give following conversions by using acetaldehyde as starting material.
$(a)$ Lactic acid and acrylic acid
$(b)$ Alanine
$(c)$ $1$-amino propane-$2$-ol

Which of the following reacts with $2,4-DNP$ reagent to give an orange precipitate?

Vedclass Test Series

Exam Paper Generator

Online Exam Module