Questions: (use the back of page if needed) 1) Draw the mechanism for the conversion of 3-sulfolene into 1,3-butadiene, then the mechanism for the cycloaddition of 1,3-butadiene with maleic anhydride. (8 pts) 2) What changes would you see in the following items if your Diels-Alder reaction product had hydrolyzed to the corresponding cyclohexenedicarboxylic acid? (9 pts) a) the product FTIR spectrum: b) the melting point: c) the NMR spectrum:
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3-sulfolene undergoes a retro-cheletropic reaction when heated, leading to the formation of 1,3-butadiene and sulfur dioxide (SO2). $$\text{3-sulfolene} \xrightarrow{\Delta} \text{1,3-butadiene} + \text{SO}_2$$ 2) Show more…
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