CHAPTER 13: Unit 7. Summary

Chemical reaction of aldehydes and ketones

Oxidation
  • Common oxidizing agents include O2(air), K2Cr2O7, Tollens solution, and Benedict’s solution.
Aldehyde
carboxylic acid
Ketone
no reaction
Hemiacental and Acetal formation
  • Reaction with one aclohol molecule produces a hemiacetal.
  • Reaction with one aclohol molecule produces a acetal.
Aldehyde
hemiacetal
acetal
Ketone
hemiacetal
acetal
Reduction
  • H2 gas is the reducing agent.
  • Ni, Pt, or Cu is the catalyst
Aldehyde
1° alcohol
Ketone
2° alcohol

Preparation of aldehydes and ketones

Alcohol Oxidation
  • KMnO4 and K2Cr2O7 are common oxidizing agents.
alcohol
Aldehyde
2° alcohol
Ketone