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1. Safety Question Download the MSDS for maleic anhydride. List five OSHA hazards, including the oral LDso and inhalation LCso toxicity data. (2 pts) 2. Diels-Alder Chemistry a) Explain why maleic anhydride is a much better dienophile than ethylene, CH2=CH2? (2 pts) b) Write the structures of the diene and dienophile that would form each of the products shown via a Diels-Alder reaction. (6 pts) a) b) CO,CHE H CO2CH3 c) Write the structure of the product from the Diels-Alder reaction between dimethyl maleate and 1,3-cyclopentadiene. How many new bonds, and what type of bonds (Toro) are created in the product? Please label these bonds in the product. (4 pts) d) Provide an explanation for why the stereoisomers shown below would not be produced in the Diels-Alder reaction of 2c. (6 pts) de CO,CH CO2CH3 H 'H ,CO,CH H H CO2CH3