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Which of the following statements about the Diels-Alder reaction is true? Multiple Choice The diene can react only when it adopts the s-trans conformation. Electron-withdrawing substituents in the diene increase reaction rate. Electron-donating substituents in the dienophile increase the reaction rate. The stereochemistry of the dienophile is retained in the product.

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Answer:

The stereochemistry of the dienophile is retained in the product.

Explanation:

The main properties of the Diels-Alder reaction are:

  • The diene can react only when it adopts the s-cis conformation.
  • Electron-donating substituents in the diene increase reaction rate.
  • Electron-withdrawing substituents in the dienophile increase reaction rate.
  • The stereochemistry of the dienophile and of the diene is retained in the product.

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