question_answer

Which one of the following alkylbromides undergoes most rapid solvolysis in methanol solution to give corresponding methyl ether?

A)  

B)  

C)          

D)  

Correct Answer: A

Solution :

Such nucleophilic substitution reactions in which solvent acts as the nucleophile are called solvolysis reactions. Solvolysis of allylic halides occurs by \[{{S}_{{{N}^{1}}}}\] mechanism due to greater stabilization of allyl carbocation intermediates by resonance. 1-bromo-3-methylbut-2-ene   react   most rapidly by \[{{S}_{{{N}^{1}}}}\] mechanism.