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Total synthesis of Gyridinal:
Reference: Meinwald, J. Tetrahedron Lett. 1973, 281. DOI
Keywords: Allyl-OH → Enal • Allylic oxidation → Enal • CompOx-Alkene/Alkene+SeO2 • Li-Alkynyl+Aldehyde • Enal+Li-R • Li/H → Li-Alkynyl • Alkyne → Ene-trans •
Reagents: SeO2 • Alkynyl-Li • Acetic anhydride, Py • Li°/NH3 • MnO2

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