CHEM 2211 1st Edition Lecture 26Outline of Last LectureI. Delocalization EnergyII. Criteria for Aromatic compoundsIII. Aromaticity of Heterocyclic compoundsIV. AntiaromaticityV. Drawing molecular orbitals and Frost DiagramsOutline of Current LectureI. Diels-Alder ReactionsCurrent LectureI. Diels-Alder ReactionsA. Always produces a six-membered ringB. Diene can attack a dienophile from either the top face or the bottom faceC. Electron rich regions do not react with each otherD. Electron poor regions react with electron rich regionsE. ExampleF. Diels Alder reaction can occur with cyclic compoundsG. The face that the diene attacks determines the stereochemistry of the moleculeThe first product occurs when top face is attacked; the second occurs when bottom face is
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