Molecular
Structure and Bonding
p Electrons in Conjugated Organic Molecules
Lecture 5 Synopsis:
Conservation
of Orbital Symmetry
The Woodward-Hoffmann rules and
Cycloaddition
Learning
Objectives
·
To recap on the application of orbital symmetry conservation in
chemical reactions to the cycloaddition of 2 ethenes to form
cyclobutane.
·
Photon assisted cycloaddition.
·
Application to the Diels-Alder Reaction.
·
Discussion of conrotatory and disrotatory ring opening of
cyclobutene to form 1,3-butadiene.