но. hv H. 2 NH 4+

Introduction to General, Organic and Biochemistry
11th Edition
ISBN:9781285869759
Author:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Publisher:Frederick A. Bettelheim, William H. Brown, Mary K. Campbell, Shawn O. Farrell, Omar Torres
Chapter4: Chemical Reactions
Section: Chapter Questions
Problem 4.79P
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Concept explainers
Question

Draw the oxidation reaction. Be sure to label initiation, propogation, and termination of free radicals.

150 uL Benzyl Alcohol + 2 mL chlorobenzene + 700 mg N-iodosuccinimide

Allow reaction to mix for 90 minutes with a sunlamp.

OH
og
+ 2
hv
+2
NH + 1₂
Transcribed Image Text:OH og + 2 hv +2 NH + 1₂
●
●
Radical Reactions: Basic Concepts
Many of you have not encountered radical organic reaction mechanisms in 241A/B
• Free radical chain mechanism
Light-initiated
●
●
Initiation occurs when radicals are created
Termination occurs when radicals are destroyed
Homolytic bond cleavage
X*
Heat
X
+
Radicals
Propagation occurs when radicals are moved from one location to another
There are many forms of this. Two examples:
Xª H R
X-H R
'Y
R-X 'X
X-X
Transcribed Image Text:● ● Radical Reactions: Basic Concepts Many of you have not encountered radical organic reaction mechanisms in 241A/B • Free radical chain mechanism Light-initiated ● ● Initiation occurs when radicals are created Termination occurs when radicals are destroyed Homolytic bond cleavage X* Heat X + Radicals Propagation occurs when radicals are moved from one location to another There are many forms of this. Two examples: Xª H R X-H R 'Y R-X 'X X-X
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Ok. I'm still not sure what the chloro benzene is used for?

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Follow-up Question

Are there two possible structures of the two possible oxidation products of benzyl alcohol? I am seeing the aldehyde but is a carbonyl also possible?
Also in this experiment we add aqueous sodium thiosulfate at the end of the reaction. I assume this has something to do with making sure we get aldehyde products. Can Explain and/or show an equation to support this? 

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