Chemistry 332 - Winter 1997

Chapter 11 - Condensation Reactions

Practice Exercises

Enols and Enolates

Indicate the structures of the enols and enolates that would be in equilibrium with the ketone below. Predict which would be the more stable enol and more stable enolate.


Alpha-Substitution Reactions

Write a mechanism for the bromination of acetone using acid catalysis.

 

Write a mechanism for the methylation of cyclopentanone.

 



Aldol Reactions

The enzyme aldolase catalyzes the reaction shown below. Show why this is an aldol reaction.


Condensation Reactions

Write mechanisms for the following reactions: