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Properties Nomenclature Preparation Reactions Synthesis

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Presentation on theme: "Properties Nomenclature Preparation Reactions Synthesis"— Presentation transcript:

1 Properties Nomenclature Preparation Reactions Synthesis
Ketones and Aldehydes Properties Nomenclature Preparation Reactions Synthesis

2 Carbonyl Functional Groups

3 Large Dipole Controls Properties and Reactivity

4 Boiling Points Dipole-Dipole Interactions

5 Adrogenic/Anabolic Steroids

6 Anabolic Steroids

7 IUPAC Nomenclature Ketones

8 IUPAC Nomenclature Aldehydes

9 Preparation of Ketones and Aldehydes
Friedel-Crafts Acylation (ketones) Hydration of Alkynes (ketones with oxymercuration, aldehydes with hydroboration) Reduction of acids, acid chlorides and nitriles Oxidation of alcohols

10 Friedel-Crafts Acylation

11 Oxymercuration Hydration Markovnikov

12 Hydroboration Hydration Anti-Markovnikov

13 DIBAH Diisobutyl Aluminum Hydride

14 Reduction Summary DIBAH [O] w/ PCC or Periodinane

15 How would you prepare the ff?
Pentanal from: pentan-1-ol De-5-ene Pentanoic acid Hexan-2-one from: hexan-2-ol 2-methyl-hex-1-ene 1-hexyne

16 Oxidation - Reduction

17 Oxidation Summary CrO3, H3O+

18 Nucleophilic Addition Reactions: Strong Nucleophiles

19 NaBH4 Reduction

20 Some Examples

21 Grignard Reagents React With Ketones to form tertiary alcohols

22 Grignard Summary

23 How would you prepare the ff using a Grignard reagent?

24 Nucleophilic Addition Reactions: Weak Nucleophiles

25 Acetal Formation

26 Acetal Mechanism

27 Use of Ethylene Glycol to Protect Ketones and Aldehydes

28 Synthesis

29 Synthesis

30 Aldehydes React Preferentially

31 Carbonyl compounds with alpha hydrogens are (surprisingly) slightly acidic. Why?

32 The conjugate base is stabilized by resonance
The conjugate base is stabilized by resonance! Draw the resonance forms for the conjugate base.

33 Identify the most acidic proton:
cyclohexane-1,3-dione Propanal Acetic acid 3,3-dimethylbutan-2-one

34 Aldol Condensation Dimerization of 3-Pentanone


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