Cope Rearrangement ·
[3,3]-Sigmatropic Shift
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.com · 1,5-diene → 1,5-diene · Cope & Hardy 1940
Electrons in TS
6
Stage
reactant
Step
1,5-hexadiene assembled
Carbon (C1–C6)
π double bond
σ C3–C4 (breaking)
σ C1–C6 (forming)
6-electron aromatic TS
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