Chapter 6

Chapter 6: Alkenes: Structure and Reactivity

I. Alkenes: Structural Characteristics

II. IUPAC Nomenclature Alkenes III. Common Names: Alkylene Groups
 * Alkenes
 * Functional Group: C=C
 * Bonding Structure (Ethene, H C=CH  )
 * Basic Structure
 * Dienes, Trienes, etc.

IV. Cahn, Ingold, Prelog Rules and E/Z Designations


 * Cahn, Ingold, Prelog Rules


 * Application of Cahn, Ingold, Prelog Rules to E/Z-Alkenes

V. Degree of Unsaturation

VI. Physical Properties of Alkenes


 * Boiling Points (b.p.) and Melting Points (m.p.)


 * Polarity

VII. Relative Favorabilities of Alkenes


 * Hydrogenation


 * Heat of Hydrogenation


 * Favorability Trends Based on Heats of Hydrogenation

VIII. Electrophilic Addition Reactions


 * Two Step Mechanism


 * Hydrohalogenation


 * Regioselective Reaction


 * Shifts and Rearrangements

VIII. The Hammond Postulate (The Hammond-Leffler Postulate)