Chemistry 161 - Section B6
Lecture Outline 1 & Assignment 1

TR 12:30-13:50January 10, 2006
Dr. J. C. Vederas
Office:  W5-09A


Read:        

TWG Solomons and CB Fryhle "Organic Chemistry" 8th Edition (2004):

 

Problems:

Do Not turn in, answers available in "Study Guide and Solutions Manual for Organic Chemistry " by Marc Loudon and Joseph Stowell. This is available in the Bookstore or can be borrowed from Cameron Library's Reserve Reading Room.

Chapter 9:
9.1; 9.2; 9.4; 9.5; 9.7; 9.8; 9.11; 9.36

Chapter 13:
13.1 to 13.7; 13.9; 13.12; 13.13; 13.14; 13.29; 13.32

 

Lecture Outline 1: Nuclear Magnetic Resonance (NMR) Spectroscopy, Conjugated Systems and Ultraviolet Spectroscopy

  1. Nuclear Magnetic Resonance (NMR) Spectroscopy

    1. Electromagnetic Spectrum

    2. Principle of NMR and Instrumentation

    3. Proton Chemical Shift: Peak Position and Integration
      1. Shielding and Deshielding of Hydrogens – Chemical Shifts
      2. Tetramethylsilane (TMS) standard
      3. Equivalent and Non-equivalent Hydrogens

    4. Spin-Spin Splitting

    5. Basics of Carbon-13 NMR Spectroscopy

    6. Basics of 2D NMR Spectroscopy


  2. Conjugated Systems and Resonance

    1. Nomenclature of Dienes and Allyl vs Vinyl

    2. Allyl Radical, Cation, and Anion - Stabilization  and Resonance

    3. Addition Reactions of Dienes

    4. Allylic Radicals and Allylic Cations - Rubber and Polystyrene



  3. Energy Characteristics of Allylic Systems

    1. Stability of Conjugated Dienes
      1. Bond Lengths
      2. Conformation

    2. Visible and Ultraviolet Spectroscopy
      1. Measurement of spectra
      2. Absorption energies
      3. Biological significance


  4. Electrocyclic Reactions of Alkene Systems

    1. Diels-Alder and Retro Diels-Alder
      1. General Form of reaction
      2. Stereochemistry