Ch. 8: Alkenes: Structure And Preparation Via Elimination Reactions
Elimination reactions often compete with ___ reactions.
Nomenclature of Alkenes: (5)
1) The parent chain must include the double bond. It is then labeled "-ene" 2) Identify and name the substituents 3) Assign a locant (double bonds gets the lowest number) 4) List the number of substituents before the parent name in alphabetical order 5) The double bond locant is placed either just before the parent name or just before the "-ene" suffix
Which structure is more stable (cis or trans) and why?
-trans -they exhibit less steric strain
In cyclic alkenes with less than ___ atoms in the ring, only cis alkenes are stable.
What does E mean?
-the higher ranked substituents are on OPPOSITE sides of the double bond
What does Z mean?
-the higher ranked substituents are on the SAME side of the double bond