Chapter 5: Sequential Reactions

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Chapter 5 is in a portable document file (pdf) and can be viewed by clicking the blue Chapter 5 button. The drawing below the button pictures a sequential reaction involving a carbohydrate radical. Beside this drawing is a summary of Chapter 5.

This drawing pictures a sequential reaction of a carbohydrate radical.
Summary of Chapter 5

Elementary radical reactions readily occur in sequence because many of these reactions produce new radicals ready for further reaction. Such reactions provide an oppor-tunity for multiple structural change under a single set of reaction conditions; consequently, these reactions, when properly chosen, represent an increase in synthetic efficiency. Two-step sequential reactions often involve radical cyclization in combination with radical addition, β-fragmentation, or hydrogen-atom abstraction. Three-step reactions usually consist of a combination of cyclization and β-frag-mentation steps.