Return to Contents Chapter 10: Conjugation in Alkadienes and Allylic Systems Ch 10 contents

Since functional groups often act an "independent units" it is convenient to classify their chemical reactions in such a manner.  However, the presence of a adjacent π system in the form of a double (or triple) bond can alter the characteristic chemistry of the functional group, principally due to the effects of resonance within a conjugated system. This π system does not have to be all C as in a C=C or CC but can also contain heteroatoms, e.g. C=O or CN.


Resonance Allylic systems Dienes Molecular Orbitals Problems
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organic chemistry © Dr. Ian Hunt, Department of Chemistry University of Calgary