The (2E,4Z,6Z,8E)-deca-2,4,6,8-tetraene undergoes thermal 8π electrocyclization. Two products are possible: one with a cyclooctatriene skeleton and one with a bicyclic structure. Predict the major product at 25 °C vs. 150 °C. Show orbitals.
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Synthesize a complex molecule from starting materials with five carbons or fewer. advanced organic chemistry practice problems
Never skip drawing electron flow; it reveals hidden steric clashes. Check Oxidation States: advanced organic chemistry practice problems