CHEM 2211 1st Edition Lecture 26 Outline of Last Lecture I II III IV V Delocalization Energy Criteria for Aromatic compounds Aromaticity of Heterocyclic compounds Antiaromaticity Drawing molecular orbitals and Frost Diagrams Outline of Current Lecture I Diels Alder Reactions Current Lecture I Diels Alder Reactions A Always produces a six membered ring B Diene can attack a dienophile from either the top face or the bottom face C Electron rich regions do not react with each other D Electron poor regions react with electron rich regions E Example F Diels Alder reaction can occur with cyclic compounds G The face that the diene attacks determines the stereochemistry of the molecule The first product occurs when top face is attacked the second occurs when bottom face is attacked
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