(Solution) - The diene lactone shown in part a has one electron donating -(2025 Original AI-Free Solution)
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The diene lactone shown in part (a) has one electron-donating group (- OR) and one electron-withdrawing group (C = O). This diene lactone is sufficiently electron-rich to serve as the diene in a Diels-Alder reaction.
(a) What product would you expect to form when this diene reacts with methyl acetylenecarboxylate, a strong dienophile?
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