申请人:Exxon Chemical Patents Inc.
公开号:US05349100A1
公开(公告)日:1994-09-20
There are provided enantiomerically enhanced chiral substituted cyclopentadienyl ligands, and compounds thereof, and a process for their making comprising contacting an optionally substituted fulvene having a prochiral carbon 6 with a lithium salt of an amine, amino acid or amide to effectuate enantioselective hydride addition to the carbon 6 of the fulvene so as to create a chiral center. There are further provided enantiomerically enhanced chiral organometallic complexes having one or more chiral substituted cyclopentadienyl groups.
提供具有对映体增强的手性取代环戊二烯基配体及其化合物,以及一种制备它们的过程,包括将具有一个丙型碳6的可选取代富烯与胺、氨基酸或酰胺的锂盐接触,以实现对富烯的碳6进行对映选择性氢化加成,从而形成手性中心。还提供具有一个或多个手性取代环戊二烯基团的对映体增强手性有机金属配合物。