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Chem_152-_lab_1 - Patrick Egan 2 February 2009 Chem 152 Lab...

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Patrick Egan Chem 152 Lab: The Diels-Alder Reaction 2 February 2009 Discussion This experiment involved the conduction, observation, and analysis of two Diels- Alder Reactions, in which a conjugated diene reacts with a dienophile, or “diene-loving” alkene, in order to produce cyclohexene. The first Diels-Alder Reaction used as reactants furan—the diene limiting reagent—and maleic anhydride—the dienophile—to produce a Diels-Alder Adduct labeled a 7-oxonobornene derivative. The second Diels-Alder Reaction reacted together anthracene—the diene limiting reagent—and maleic anhydride —the dienophile—to yield the Diels-Alder Adduct Dihydroanthracene succinic anhydride. Calculating percent yields, taking melting points, and performing IR, C NMR, and H NMR spectroscopies showed that the products were very pure and matched the predicted hypothesis products. In the first Diels-Alder Reaction between furan and maleic anhydride, the tests affirmed the correct identity of the product, as well as identifying its stereochemistry.
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