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The in situ catalysts formed from diethyl tartarate (DET) and titanium(IV) isopropoxide catalyze the asymmetric epoxidation reactions (72). The seminal work of Sharpless has been applied for a great variety of synthetic reactions. (The replacement of titanium with zirconium, hafnium, or thallium does not improve the chiral efficiency)... [Pg.687]

See other pages where Zirconium isopropoxide asymmetric epoxidation is mentioned: [Pg.419] [Pg.419] [Pg.419]