207917-44-0Relevant articles and documents
Synthesis of racemic chiral-at-metal complexes of the Group 4 metals
Alcock, Nathaniel W.,Clase, Howard J.,Duncalf, David J.,Hart, Suzanne L.,McCamley, Andrew,McCormack, Peter J.,Taylor, Paul C.
, p. 45 - 54 (2007/10/03)
A protocol for asymmetric synthesis of chiral-at-metal complexes is described, but enantiomerically-enriched products can not be isolated due to formation of complexes between the Group 4 metallocene products and the borane by-products. An efficient method for synthesis of racemic chiral-at-metal metallocenes, through lithium chloride catalysed ligand redistribution reactions, is described. Sterically-hindered racemic chiral-at-metal complexes are prepared by nucleophilic substitution of prochiral dichlorides.
