The first chain propagation step of all radical halogenation reactions was abstraction of hydrogen by the halogen atom to give an alkyl radical and HX, as for example CH,CH, + Br: CH,CH, + HBr: Suppose, instead, that radical halogenation occurs by an alternative pair of chain propa- gation steps, beginning with this step. CH CH, + Br: CH,CH,Br: + H.

The first chain propagation step of all radical halogenation reactions was abstraction of hydrogen by the halogen atom to give an alkyl radical and HX, as for example CH,CH, + Br: CH,CH, + HBr: Suppose, instead, that radical halogenation occurs by an alternative pair of chain propa- gation steps, beginning with this step. CH CH, + Br: CH,CH,Br: + H.

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

Chapter8: Haloalkanes, Halogenation, And Radical Reactions

Section: Chapter Questions

Problem 8.21P

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