5073

For the reactions shown below, draw the structure of the main organic product(s) or starting material(s) necessary to carry out the specified reaction.

(a)

(b)

5162

Predict the major product of the following reaction:

5194

The following is an early step in the synthesis of a natural product. Show what reagents and conditions were used for this step.

5365

Predict the products of each of the following Diels-Alder reactions. Indicate the configuration when it is appropriate.

(a)

(b)