ChemInform Abstract: ansa‐Metallocene Derivatives. Part 17. Racemic and meso‐Diastereomers of Group IV Metallocene Derivatives with Symmetrically‐Substituted, Dimethylsilanediyl‐Bridged Ligand Frameworks. Crystal Structure of R,S‐Me2Si(3‐t‐Bu‐5‐MeC5H2)2ZrCl2.

H, Wiesenfeldt; Reinmuth, Annette; Barsties, Elke; Evertz, Kaspar; Brintzinger, Hans‐Herbert

doi:10.1002/chin.198949235

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Chirality and Synthesis Of Titanocene Catalysts1

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2005

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“…Silicon-bridged ansa- titanocenes, such as 37 , can be obtained by metalation of 38 (Scheme 5) [18,43,44,45]. Titanocenes with a silyl bridge, containing vinyl or allyl groups, such as 39 (R=H or Me) were described in [46].…”

Section: Chirality and Synthesis Of Titanocene Catalystsmentioning

confidence: 99%

Enantioselective Hydrogenations with Chiral Titanocenes

2005

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In this review article chiral titanocenes and their application for the enantioselective hydrogenations of different unsaturated compounds are discussed, with a special emphasis on the kinetics and the practicality of the developed systems. The nature of enantioselectivity and the hydrogenation mechanisms are reviewed as well. Catalyst immobilization and the different immobilization techniques are examined.

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