树枝状交联手性配体：具有扩散控制的聚苯乙烯负载钛-TADDOLate催化剂的高稳定性
Dendritically Cross-Linking Chiral Ligands: High Stability of a Polystyrene-Bound Ti-TADDOLate Catalyst with Diffusion Control.
作者信息
Sellner Holger, Seebach Dieter
机构信息
Laboratorium für Organische Chemie der Eidgenössischen Technischen Hochschule Zürich, ETH Zentrum, Universitätstrasse 16, CH-8092 Zürich (Switzerland), Fax: (+41) 1-632-11-44.
出版信息
Angew Chem Int Ed Engl. 1999 Jul 12;38(13-14):1918-1920. doi: 10.1002/(SICI)1521-3773(19990712)38:13/14<1918::AID-ANIE1918>3.0.CO;2-3.
A new type of heterogeneous, polystyrene-bound catalyst is introduced: A cross-linking, dendritic ligand, the TADDOL 1, is copolymerized with styrene, loaded with titanate, and used for the enantioselective catalysis of the addition of EtZn to PhCHO. The polymer-bound catalyst has an unprecedented efficiency and stability in multiple applications.
一种新型的多相聚苯乙烯负载型催化剂被引入
一种交联树枝状配体TADDOL 1与苯乙烯共聚，负载钛酸酯，并用于EtZn对PhCHO加成反应的对映选择性催化。这种聚合物负载型催化剂在多种应用中具有前所未有的效率和稳定性。
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