Chem 351 Tentative Lecture Schedule - Summer 2012

No

Date

Topics

Lecture Materials

Chapter

1

6/18 Synthesis. Review of reactions from Chem 350. Retrosynthetic analysis.   12

2

6/19 Alcohols: Nomenclature, Physical Properties, and Reactions. Acidity of alcohols and phenols. SN and E reactions of alcohols. Oxidation of alcohols.   13

3

6/20 Ways to prepare alcohols. Reduction of carbonyl compounds; NaBH4 vs LiAlH4. The Grignard synthesis.   13

4

6/21 Basicity of Grignard reagents/reaction with hydroxyl groups. Ethers: Nomenclature, Physical Properties, and Reactions. Silyl ethers as protecting groups.   13, 14

5

6/22 Crown ethers. Epoxides: Nomenclature, Preparation, and Reactions. Thiols and Sulfides.   14

6/25 Exam 1   12-14
6 6/26 Types of dienes. Stability and reactivity of conjugated dienes. Resonance vs MO explanations. Thermodynamic vs kinetic control. MO diagrams for linear polyenes. Electrocyclic reactions.   17
7 6/27 Electrocyclic reactions. Sigmatropic shifts; the Cope and Claisen rearrangements. Cycloaddition reactions. Thermally allowed vs photochemically allowed. Benzene. Theoretical requirements for aromaticity. Experimental hallmarks of aromaticity. Anti-aromaticity. The annulenes up to 18-annulene.   17, 18
8 6/28 Heteroaromatics. Charged aromatics. PAHs.   18
9 6/29 Electrophilic aromatic substitution. Mechanism and substituent effects.   19
10 7/2 Electrophilic aromatic substitution. Synthesis strategies. Nucleophilic aromatic substitution.   19
  7/3 Exam 2   17-19
  7/4 Independence Holiday - No Class    
11 7/5 Aldehydes and Ketones. Naming. Nucleophilic adition mechanisms and examples.   20
12 7/6 Use of acetal group as a protecting group. Nucleophilic addition of amines to aldehydes and ketones.   20
13 7/9 Oximes and hydrazones. Wolf-Kishner reduction mechanism. Carboxylic acids. Nomenclature and acid/base reaction. Fatty acids nomenclature and mps. Ways to prepare carboxylic acids.   20, 21
14 7/10 Carboxylic acid derivatives (CADs). Reactivity and nucleophilic substitution mechanisms. Preparation of acid chlorides from carboxylic acids. Interconversion of CADs. Hydrolysis of nitriles.   21
15 7/11

Saponification. Ways to prepare esters. Reduction of carboxylic acids and derviatives. Grignard reactions of esters. Organocuprates.

  21
16 7/12     22
  7/13 Exam 3   20-21
17 7/16     22
18 7/17     22
19 7/18     23
20 7/19     27
  7/20 Exam 4   22, 23, 27