Question

Explain why the following primary substrate undergoes SN1 very rapidly (the OTs is the leaving group)?

Answer 1

SN1 is a substitution reaction with n being the nucleophilic substitution an 1 represents a unimolecular reaction. Because the given molecule on the central carbon is sterically hindered, the rate of carbocation formation is increased dramatically. It will make the OT (leaving group) to leave and a nucleophile (nucleophilic attack) will react to the carbocation.