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Aldehydes and Ketones - carbonyl compounds. carbonyl group - structure, bonding and physical properties. Review of methods of preparation of aldehydes and ketones. hydration of alkynes Friedel-Crafts acylation of aromatic compounds. Overview of reactions of carbonyl compounds.

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Presentation Transcript
aldehydes and ketones carbonyl compounds
Aldehydes and Ketones - carbonyl compounds
  • carbonyl group -
  • structure, bonding and physical properties
review of methods of preparation of aldehydes and ketones
Review of methods of preparation of aldehydes and ketones
  • hydration of alkynes
  • Friedel-Crafts acylation of aromatic compounds
overview of reactions of carbonyl compounds
Overview of reactions of carbonyl compounds
  • reduction to alcohols
  • addition of organometallic reagents
  • addition of oxygen, nitrogen, sulfur and phosphorus nucleophiles
  • reduction of carbonyl to methylene (Clemmensen or Wolff-Kishner)
synthesis of alcohols
Synthesis of Alcohols
  • Reduction of Carbonyl Compounds
slide7

Synthesis of Alcohols

Reduction of Carbonyl Compounds

slide8

Synthesis of Alcohols

Reduction of Carbonyl Compounds

H2/cat., NaBH4, LiAlH4

reduction of carbonyls to alkanes
Reduction of carbonyls to alkanes
  • Clemmensen reduction
  • Wolff-Kishner reduction
  • Desulfurization of thioketals
nucleophilic addition to a b unsaturated carbonyls45
Nucleophilic Addition to a,b-Unsaturated Carbonyls
  • Strong nucleophiles add 1,2
  • kinetic control
  • Weaker nucleophiles add 1,4
  • thermodynamic control