I. Predict
(36) Predict the major organic product or products of the following reactions. Indicate stereochemistry in the products where appropriate. If there is no reaction, indicate by writing N/R.
II. (23) Mechanism. Outline a reasonable and complete mechanism for the formation of the products shown. Include correct arrow notation for the movement of electrons, and be sure to show ALL the steps. Include any relevant resonance structures for the intermediate(s).
A. The
b-lactone is used to formed the polyester shown below. Show a mechanism for the formation of the dimer (two units) shown ONLY. You do not need to show how the polyester is formed.
B.
III. (23) Transform. Show the reagents necessary to accomplish the following chemical transformations. You may use any readily available and reagents. More than one step will be necessary, so show intermediate products for each step. Correct retrosynthetic analysis will receive partial credit.
A.
B.
IV. (18) Multiple Choice. Choose the best answer to the following questions. Write your answer on the grid provided on the front page.
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