This invention relates to methods and small molecules having a phosphate group that can be used to inhibit phosphate transport and to treat or prevent diseases that are related to disorders in the maintenance of normal serum phosphate levels.
Bridged bi-aromatic ligands, catalysts, processes for polymerizing and polymers therefrom
申请人:Symyx Technologies, Inc.
公开号:US20040014950A1
公开(公告)日:2004-01-22
New ligands and compositions with bridged bis-aromatic ligands are disclosed that catalyze the polymerization of monomers into polymers. These catalysts with metal centers have high performance characteristics, including higher comonomer incorporation into ethylene/olefin copolymers, where such olefins are for example, 1-octene, propylene or styrene. The catalysts also polymerize propylene into isotactic polypropylene.
A series of enantiomerically pure mono- and bis-aryl tert-butyl sulfoxides were synthesised to promote the enantioselective allylation of aldehydes with allyltrichlorosilane. Moderate to good yields and modest to high enantioselectivities were achieved. The absence of nonlinear effect, spacer effect, promoter loading and concentration effect indicate that only one molecule of aryl tert-butyl sulfoxide is involved in the stereodetermining step.
Novel Materials For Organic Electroluminescent Devices
申请人:Stoessel Philipp
公开号:US20080171225A1
公开(公告)日:2008-07-17
The present invention relates to novel materials which can be used in organic electronic devices, in particular electroluminescent devices, and are derivatives of fused aromatic systems.
[EN] BRIDGED BI-AROMATIC LIGANDS AND OLEFIN POLYMERIZATION CATALYSTS PREPARED THEREFROM<br/>[FR] LIGANDS BI-AROMATIQUES PONTÉS ET CATALYSEURS DE POLYMÉRISATION D'OLÉFINES PRÉPARÉS À PARTIR DE CEUX-CI
申请人:UNIVATION TECH LLC
公开号:WO2016172097A1
公开(公告)日:2016-10-27
Disclosed are novel bridged bi-aromatic phenol ligands and transition metal catalyst compounds derived therefrom. Also disclosed are methods of making the ligands and transition metal compounds, and polymerization processes utilizing the transition metal compounds for the production of olefin polymers.