Cycloaddition Reactions
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An assortment of thermal and photochemical cycloaddition reactions are shown here. The photochemical reactions are noted by a hν over the arrow. The reader should inspect each reaction to determine whether it has a 4n or a 4n+2 electron transition state, and deduce the expected stereochemistry. By clicking on the diagram this information will be displayed. |
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End of this supplementary topic
Electrocyclic Reactions
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An assortment of thermal and photochemical electrocyclic reactions are shown here. The photochemical reactions are noted by a hν over the arrow. The reader should inspect each reaction to determine whether it has a 4n or a 4n+2 electron transition state, and deduce the expected stereochemistry. By clicking on the diagram this information will be displayed. |
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End of this supplementary topic
Sigmatropic Reactions
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An assortment of thermal sigmatropic reactions are shown here. The reader should inspect each reaction to determine whether it has a 4n or a 4n+2 electron transition state, and deduce the expected stereochemistry. By clicking on the diagram this information will be displayed. |
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End of this supplementary topic
Combinations of Pericyclic Reactions
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A collection of multistage pericyclic transformations are presented here. Photochemical reactions are noted by a hν over the arrow. The reader should dissect each overall reaction into its component steps, and classify each as having a 4n or a 4n+2 electron transition state. By clicking on the diagram this information will be displayed. |
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