Chemistry 331 - Fall 1996

Chapter 3 - Alkenes. Organic Reactions

Practice Exercises

Alkene Nomenclature

Write IUPAC names for the following:

E or Z ?

Addition Reactions

Predict the product expected from the following addition reactions:

Reaction Mechanisms

Draw electron arrows that indicate the flow of electrons in each reaction below.
Also indicate electrophiles and nucleophiles in each reaction.

Potential Energy Diagrams

The isomerization of cis-2-butene to trans-2-butene can be accomplished by heating, with

delta H = - 5 kcal/mole

Ea = 55 kcal/mole

Draw an approximate potential energy diagram for this reaction.

Draw an approximate potential energy diagram for the reverse reaction
(i.e., the isomerization of trans-2-butene to cis-2-butene).
What would be delta H and Ea ?

Reflection/preparation for next class

a) Make a list of the skills you believe are important from Chapter 3, organized according to the cognitive levels:

1) Knowledge
2) Concepts
3) Applications
4) Analysis & higher

b) Are you confident with your abilities with each of the skills?
Make a list of questions and problems to be addressed next time.

c) Create a good exam question from Chapter 3.