medium · MCAT chem-phys
Allyl bromide (CH_2=CHCH_2Br) is exceptionally reactive in both S_N1 and S_N2 reactions.
What factor enhances its S_N1 reactivity?
- Bromine is more electronegative in the allylic position.
- Resonance stabilization of the resulting carbocation.
- The primary carbon is not sterically hindered.
- The double bond acts as a nucleophile.
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