Organic Chemistry Exam 2 for CHEM 321 at Christopher Newport University - Prof. Kathleen B, Exams of Organic Chemistry

Download Organic Chemistry Exam 2 for CHEM 321 at Christopher Newport University - Prof. Kathleen B and more Exams Organic Chemistry in PDF only on Docsity! 1 Department of Biology, Chemistry, & Environmental Science Christopher Newport University CHEM 321 Organic Chemistry Exam 2 – 100 points – 5 pages – Friday, October 9, 2009 Honor Pledge: The Key (Signature) NAME: KEY 1. (10 points) Using the blanks provided, classify each of the following reactions as an addition (A), elimination (E), substitution (S), or rearrangement (R). 2 2. (8 points) Label the principle nucleophile (Nu:) and the principal electrophile (E+) in both of the following reactions. Indicate the specific atoms or ions that play these roles. 3. (8 points) Redraw both of the reactions above and include the proper curved arrows to indicate formal electron movement. 4. (10 points) Shown below are three isomers of 1,4-dimethylcyclohexane. Draw all of the interactions and calculate the strain energy for each conformation. Circle the most stable conformation and explain your answer. 1,3-Diaxial H CH3 interactions = 3.8 kJ/mol.