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Tutorial MenuePericyclic ReactionsLearning Unit 3 of 6

Pericyclic Reactions: Cycloadditions and Diels-Alder Reaction

Cycloadditions: Stereochemistry

Overall, two new bonds are being formed each between two atoms during cycloadditions, therefore, four stereocenters are generated in one step. The following examples illustrate different selectivities in cycloadditions.

Fig.
Facial selectivity
Fig.
Exo/endo selectivity
Fig.
Regioselectivity
Fig.
Enantioselectivity
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