In this experiment, you are conducting a green photochemical radical reaction and then a pinacol rearrangement. You may provide an explanation of the three mechanistic steps in every radical reaction (initiation, propagation and termination) and then discuss the acid-catalyzed pinacol rearrangement mechanism. Look up a recent example of a pinacol rearrangement in the chemical literature and make a comment in your introduction about how pinacol rearrangements continue to be important reactions. Say something about the “uses” of benzopinacol and benzopinacolone. Be sure to cite your sources for the details you include in this section. The last paragraph of your introduction should clearly state the objectives or purpose of your experiments.