In the presence of 18-crown-6, potassium permanganate dissolves in benzene to give“purple benzene,” a useful reagent for oxidizing alkenes in an aprotic environment. Use adrawing of the complex to show why KMnO4 dissolves in benzene and why the reactivityof the permanganate ion is enhanced.

In the presence of 18-crown-6, potassium permanganate dissolves in benzene to give“purple benzene,” a useful reagent for oxidizing alkenes in an aprotic environment. Use adrawing of the complex to show why KMnO4 dissolves in benzene and why the reactivityof the permanganate ion is enhanced.

Organic Chemistry

8th Edition

ISBN:9781305580350

Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote

Chapter24: Catalytic Carbon-carbon Bond Formation

Section: Chapter Questions

Problem 24.12P

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Question

In the presence of 18-crown-6, potassium permanganate dissolves in benzene to give
“purple benzene,” a useful reagent for oxidizing alkenes in an aprotic environment. Use a
drawing of the complex to show why KMnO4 dissolves in benzene and why the reactivity
of the permanganate ion is enhanced.

Definition Definition Organic compounds that contain at least one double bond between carbon-carbon atoms. The general molecular formula for alkenes with one double bond is C n H 2n .

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