Cope Rearrangement · [3,3]-Sigmatropic Shift
unseel.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
Unseel.com · Cope Rearrangement