Welcome
Content
Introduction
Linear Combination of Atomic Orbitals
Larger Molecules
Reactions
Lewis Acid/Lewis Base Interactions
Selectivity; Frontier MO Theory
The Woodward-Hoffmann Rules
Elementary Symmetry
Glossary
Molecules in VRML
General Information - Installation - Use
| 4. Reactions The aim of this chapter is to present several prototypes of common reactions, including a short treatment of concerted electrocyclic reactions, cycloadditions and sigmatropic rearrangements. We now have a rather unsatisfactory situation in which elementary mechanistic organic chemistry is treated using valence-bond and resonance arguments (because they work and are easy to explain) but that for the above processes a more thorough understanding can be obtained using MO-theory. Next: Lewis Acid/Lewis Base Interactions Selectivity; Frontier MO Theory The Woodward-Hoffmann Rules