Aldehydes and Ketones
 Why are acetals useful as protecting groups for aldehydes and ketones?
 Describe the alpha halogenation of aldehydes and ketones. How is the reaction different
if it is carried out in base instead of acid?
 What does cyanohydrin formation have in common with nucleophilic addition of a
Grignard reagent to an aldehyde or ketone?
 Why is use of the Wittig reagent to prepare alkenes better than other methods to make
alkenes that you have learned previously?
 Describe three ways to synthesize aldehydes or ketones, at least one of them new.
 What conditions or reagents encourage an aldol condensation product to undergo
dehydration to form an enone?
 How is an enamine different from an imine? Describe how these two types of
compounds are synthesized.
 Why are hydrogens alpha to carbonyl groups relatively acidic?
 How is an intramolecular aldol condensation different from a regular aldol
condensation?
 Describe two kinds of reactions that aldehydes can undergo.