Maharashtra BoardEnglish MediumSTD 12 ScienceChemistryHalogen Derivatives2 Marks
Question
Write four salient features of $S_N1$ mechanism.
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Answer
• The reaction occurs in two main steps: loss of the leaving group to form a carbocation, and then nucleophilic attack.
• The rate-determining step is unimolecular, involving only the substrate $($ without the nucleophile $).$
• The formation of a carbocation intermediate allows for rearrangement to create more stable carbocations, affecting the final product.
• $SN1$ reactions tend to occur with tertiary alkyl halides or substrates that can stabilize the resulting carbocation.
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