#6 Please and Thank You.
Show transcribed image text One of the benefits of using butadien as diene is that you don’t have to worry about assigning endo vs exo. Draw the “endo” and “exo” products of your Diels-Alder reaction, and explain why the distinction is irrelevant here. This does not hold for other dienes. Draw the exo and endo products of the reaction of cyclohexadiene with maleic anhydride. Make sure you label your answers properly as endo or exo. From your two IR spectra, determine the frequency of the C = O stretch in maleic anhydride and your product. Which molecule has a higher C = O stretching frequency? What single factor mainly determines the stretching frequency in IR spectroscopy? Based on your answer to Q7, and looking back to Chem 112B Expt 1 postlab questions 1-4, explain the difference in C = O stretching frequencies between maleic anhydride and your product. How these spectra help you determine whether the reaction worked?
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