Chapter 2

Chapter 2 - Chapter 4 Halogenation Addition of halogen to...

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Unformatted text preview: Chapter 4 Halogenation Addition of halogen to an alkane o Only works on sp3-hybridized carbons Works best with chlorine and bromine o Iodine is too slow o Fluorine blows up (too fast) Goes through radical intermediate, so putting halogen on more substituted carbon is better o Bromine is way more selective than chlorine Initiation o Homolytic cleavage of X2 Cl 2 Cl · Cl o One molecule splits into two radicals Propagation o Start with one molecule and one radical; end up with one molecule and one radical! H Cl · 1) 2) . . + HCl Cl Cl Cl + Cl · Termination o Any two radicals stick together . . Cl · Cl · Cl . Cl · Cl Cl ...
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This note was uploaded on 03/06/2012 for the course CHEM 102 taught by Professor Henshaw during the Spring '08 term at VCU.

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Chapter 2 - Chapter 4 Halogenation Addition of halogen to...

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