Question
The following diene does not undergo Diels-Alder reactions. Explain.(FIGURE CANT COPY)
Step 1
The Diels–Alder requires the two double bonds to be in an s‑cis geometry so their p orbitals can overlap simultaneously in the cyclic transition state. If the diene is locked in an s‑trans geometry (by ring fusion, by being part of an aromatic or strongly Show more…
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