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Chiral Ferrocene (chiral + ferrocene)
Selected AbstractsAn Efficient Approach to Chiral Ferrocene-Based Secondary Alcohols via Asymmetric Hydrogenation of Ferrocenyl KetonesADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 3 2006Wing-Sze Lam Abstract P-Phos-ruthenium-DPEN precatalysts have been found to be efficient for the asymmetric hydrogenation of various ferrocenyl ketones. The use of (R)-xylyl-P-PhosRuCl2(R,R)-DPEN generated chiral ferrocenylethanol in 99.3% e.e. with >99% conversion in a 150-g scale. [source] Synthesis of Novel Planar Chiral Ferrocene and Cyclopentadienyl Manganese Tricarbonyl Derivatives and Their Use as Chiral Ligands in the Palladium-Catalyzed Asymmetric Allylic Alkylation.CHEMINFORM, Issue 44 2003Jae Hoon Lee Abstract For Abstract see ChemInform Abstract in Full Text. [source] Asymmetric Addition of Diethylzinc to Aromatic Aldehydes by Chiral Ferrocene-Based Catalysts.CHEMINFORM, Issue 38 2002Tae-Jeong Kim Abstract For Abstract see ChemInform Abstract in Full Text. [source] (,)-Sparteine-Mediated Directed ortho- Metalation of N -Cumyl- N -ethylferrocenecarboxamide.ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 3 2003Amines, Esters, Phosphines, Versatile Routes to Functionalized Planar Chiral Ferrocenecarboxamides Abstract N -Cumyl- N -ethylferrocenecarboxamide 5 provides planar chiral carboxamides 6 in high yield and % ee via (,)-sparteine-mediated directed ortho -metalation. Mild decumylation affords secondary amides 7, which serve as intermediates for a convenient and general route to the venerable Ugi planar chiral ferrocenylamines 13 and as versatile precursors for the preparation of novel chiral ferrocenes 15 and 20. The chiral TMS-ferrocenyl derivative 7c is used to prepare the enantiomeric (S)- 7f, circumventing the lack of availability of (+)-sparteine. [source] | ||||||||||