Premium
Dendritically Cross‐Linking Chiral Ligands: High Stability of a Polystyrene‐Bound Ti‐TADDOLate Catalyst with Diffusion Control
Author(s) -
Sellner Holger,
Seebach Dieter
Publication year - 1999
Publication title -
angewandte chemie international edition
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 1433-7851
DOI - 10.1002/(sici)1521-3773(19990712)38:13/14<1918::aid-anie1918>3.0.co;2-3
Subject(s) - polystyrene , catalysis , diffusion , chemical engineering , materials science , chemistry , nanotechnology , combinatorial chemistry , organic chemistry , polymer , thermodynamics , engineering , physics
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 Et 2 Zn to PhCHO. The polymer‐bound catalyst has an unprecedented efficiency and stability in multiple applications.