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Total synthesis of Dihydrotagetone:
Reference: Normant Tetrahedron Lett., 1976, 1379. DOI
Keywords: Imine -> Aldehyde • CompE+-Imine/Acetal+H2O • Acetal -> Aldehyde • Alkyl-OH -> Ketone • Aldehyde azaenolate+Alkyl-X • Wittig-methyl • Mg-Alkyl+Aldehyde • Aldehyde+Mg-R • Aldehyde -> Imine •
Reagents: LiNEt2 • PPh3=CH2 • Alkyl-MgX • CrO3·Py2 (Collins) •

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