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Showing 1 to 4 of 4 for “"enantioselective desymmetrization"”.
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Applications of planar-chiral phosphaferrocene-oxazolines in asymmetric catalysis and enantioselective desymmetrization by carbon nucleophiles in the presence of chiral ligands
… although significant, role. In PART II, the enantioselective desymmetrization of cyclic anhydrides and imides by carbon nucleophiles is described. By employing a Grignard reagent/chiral ligand complex as the nucleophile, a range of anhydrides and imides are effectively desymmetrized with …
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High oxidation state molybdenum and tungsten imido alkylidene and metallacycle chemistry : catalytic asymmetric olefin metathesis and mechanistic investigation
… adducts. Temperature and concentration dependent enantioselective desymmetrization of prochiral trienes by catalyst 21 afforded five- and six-membered heterocycles in >90% conversion and >90% ee. Consumption of the six-membered substrate followed pseudo first-order kinetics. The new catalyst was …
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Use of organocatalysts in stereoselective organic synthesis
… substituents. In this thesis, we present four enantioselective transformations of substituted cyclobutanones which employ readily-available amino acids (or derivatives) and thiourea derivatives as organocatalysts. - The first transformation involves enantioselective aldol reaction between …
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Preparación estereoselectiva de interesantes líquidos iónicos y carbamatos mediante procesos de resolución cinética y desimetrización enzimática
… E. García-Urdiales, V. Gotor, ¿Enzymatic desymmetrization of prochiral 2-substituted-1,3-propanediamines: preparation of valuable nitrogenated compounds¿ J. Org. Chem. 2009, 74, 2571-2574. E. García-Urdiales, N. Ríos-Lombardía, E. Busto, V. Gotor-Fernández, V. Gotor, ¿Computational study …