HO-CH_2CH_2CH_2CH_2-Br xrightarrow{KOH} text{ | vedclass

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

Question

(B) The reaction involves an intramolecular nucleophilic substitution $(S_N2)$ reaction.$1$. The base $KOH$ deprotonates the hydroxyl group $(-OH)$ to

Vedclass · Accepted Answer

Tetrahydrofuran

Vedclass · Answer

(B) The reaction involves an intramolecular nucleophilic substitution $(S_N2)$ reaction.$1$. The base $KOH$ deprotonates the hydroxyl group $(-OH)$ to form an alkoxide ion: $HO-CH_2CH_2CH_2CH_2-Br + OH^- \rightarrow ^-O-CH_2CH_2CH_2CH_2-Br + H_2O$.$2$. The negatively charged oxygen atom acts as an internal nucleophile and attacks the carbon atom attached to the bromine atom,displacing the bromide ion.$3$. This cyclization leads to the formation of a five-membered cyclic ether,which is Tetrahydrofuran.

$HO-CH_2CH_2CH_2CH_2-Br \xrightarrow{KOH} \text{Product}$. The product is:

Similar Questions

Which of the following is $NOT$ produced by the reaction of ethanol with $H_2SO_4$?

Explain the effects and remedies when an alcoholic consumes denatured alcohol.

Which of the following alcohols shows turbidity immediately when reacted with Lucas reagent $(HCl + ZnCl_2)$?

Why is the reactivity of all three classes of alcohols with concentrated $HCl$ and $ZnCl_2$ (Lucas reagent) different?

Which of the following alcohols is least soluble in water?

Vedclass Test Series

Exam Paper Generator

Online Exam Module