Asked by Landon Thompson on Jun 06, 2024

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Explain why SN2 reactions on allyl bromide proceed faster than corresponding reactions on ethyl bromide.

Allyl Bromide

A halogenated compound (C3H5Br), often used as a building block in organic synthesis for introducing allyl groups.

Ethyl Bromide

A colorless, volatile compound used primarily in organic synthesis and as a fumigant; it is an alkyl halide with the formula C2H5Br.

  • Understand the reactivity of allylic systems in substitutions and cycloadditions.
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SD
shubham deshmukhJun 10, 2024
Final Answer :
When the substrate is allylic, resonance stabilization through conjugation with the adjacent π bond occurs in the transition state. This delocalization lowers the energy of the transition state and results in an enhanced rate.